View source for List of railway electrification systems

{{short description|none}} <!-- "none" is preferred when the title is sufficiently descriptive; see [[WP:SDNONE]] -->
This is a list of the power supply systems that are, or have been, used for [[railway electrification]].

Note that the voltages are nominal and vary depending on load and distance from the substation.

{{as of|2023}}, many trams and trains use on-board solid-state electronics to convert these supplies to run [[three-phase electric power|three-phase]] AC traction motors.

Tram electrification systems are listed [[List of tram systems by gauge and electrification|here]].

==Key to the tables below==
* Volts: [[voltage]] or [[volt]]
* Current:
** DC = [[direct current]]
** # Hz = [[frequency]] in [[hertz]] ([[alternating current]] (AC))
*** AC supplies are usually [[single-phase electric power|single-phase]] (1φ) except where marked three-phase (3φ).
* Conductors:
** [[overhead line]] or
** conductor rail, usually a [[third rail]] to one side of the running rails. Conductor rail can be:
*** top contact: oldest, least safe, most affected by ice, snow, rain and leaves. Protection boards are installed on most top contact systems, which increases safety and reduces these affections.
*** side contact: newer, safer, less affected by ice, snow, rain and leaves
*** bottom contact: newest, safest, least affected by ice, snow, rain and leaves
{|
|- style="background:#fee"
|
* Red background indicates voltages no longer in use on the indicated location
|}

==Systems using standard voltages==
{{see also|Railway electrification system#Voltage|List of tram systems by gauge and electrification}}
Voltages are defined by two standards: BS&nbsp;EN&nbsp;50163{{sfnp|BS EN 50163|2007}} and IEC&nbsp;60850.{{sfnp|IEC 60850|2007}}

===Overhead systems===
====600 V DC====
{| class="wikitable" style="width:100%"
|-
! style="width:20%" | Country
! style="width:20%" | Location
! style="width:25%" | Name of system
! style="width:35%" | Notes
|-
| colspan="2" | {{center|Worldwide}}
| Many [[tram]] systems
| This voltage is mostly used by older tram systems worldwide but by a few modern ones as well. See [[List of tram systems by gauge and electrification]].
|-
| [[Rail transport in Germany|Germany]]
| [[Trossingen]]
| [[Trossingen Railway]] ||
|-
| [[Rail transport in Hungary|Hungary]]
| [[Budapest]]
| [[Budapest Metro]]
| [[Metro Line M1 (Budapest Metro)|Line M1]]
|-
| rowspan="5" | [[Railway electrification in Japan|Japan]]
| [[Chōshi, Chiba]]
| [[Choshi Electric Railway Line|Chōshi Electric Railway]] ||
|-
| [[Kyoto, Kyoto]]
| [[Eizan Electric Railway]] ||
|-
| [[Kanagawa Prefecture|Kanagawa]]
| [[Enoshima Electric Railway]] ||
|-
| [[Matsuyama, Ehime]]
| [[Iyotetsu Takahama Line]] ||
|-
| [[Shizuoka, Shizuoka]]
| [[Shizuoka Railway Shizuoka-Shimizu Line|Shizuoka Railway]] ||
|-
| [[Rail transport in Romania|Romania]]
| [[Sibiu County|Sibiu county]]
| [[Sibiu]]-[[Rășinari]] [[Narrow Gauge]] [[Railway]]
| Part of the former Sibiu tram line
|-
| [[Rail transport in Spain|Spain]]
| [[Madrid]]
| [[Madrid Metro]]
| Lines 1, 4, 5 and 9. In process to be converted to 1500 V
|-
| [[Railway electrification in Great Britain|United Kingdom]]
| [[Crich]], England
| [[National Tramway Museum]]
|
|-
| rowspan="5" | [[Railroad electrification in the United States|United States]]
| [[Boston]]
| [[MBTA subway]]
| Green and Mattapan Lines, the at-grade section of Blue Line northeast of [[Airport station (MBTA)|Airport station]]
|-
| [[Cleveland]]
| [[RTA Rapid Transit]]
| [[Red Line (RTA Rapid Transit)|Red Line]]
|-
| [[San Diego]]
| [[San Diego Trolley]]
|
|-
| [[Iowa]]
| [[Iowa Traction Railway]]
|
|-
| [[San Francisco]]
| [[San Francisco Municipal Railway]]
| 
|}

====750 V DC====
{| class="wikitable" style="width:100%"
|-
! style="width:20%" | Country
! style="width:20%" | Location
! style="width:25%" | Name of system
! style="width:35%" | Notes
|-
| colspan="2" | {{center|Worldwide}}
| Many [[tram]] systems
| This voltage is used for most modern tram and light rail systems. See [[List of tram systems by gauge and electrification]]
|-
| [[Rail transport in Austria|Austria]] 
| [[Upper Austria]]
| Local lines of [[:de:Stern & Hafferl|Stern & Hafferl]]
| Also listed as having 1500&nbsp;V and 600&nbsp;V lines
|-
| [[Rail transport in Austria|Austria]]<br />[[Rail transport in Switzerland|Switzerland]]
| [[Rhine]] / [[Lake Constance]]
| [[Internationale Rheinregulierungsbahn]]
| Construction railway for the regulation works of the river Rhine near its outfall into Lake Constance, now preserved. The river forms the border between Austria and Switzerland, and the railway operated in both countries.
|-
| [[Rail transport in Germany|Germany]] 
| [[Karlsruhe]] to [[Bad Herrenalb]] with a branch to [[Ittersbach]]
| [[Alb Valley Railway|Albtalbahn]]
| Railway of the Upper Rhine
|-
| [[Rail transport in Hong Kong|Hong Kong]]
| [[Hong Kong]]
| [[MTR]]
| [[Light Rail (MTR)|MTR Light Rail]]
|-
| rowspan="5" | [[Railway electrification in Japan|Japan]]
| [[Hamamatsu, Shizuoka]]
| [[Enshu Railway Line|Enshū Railway]] ||
|-
| [[Hakone, Kanagawa]]
| [[Hakone Tozan Line|Hakone Tozan Railway Line]]
| Between Hakone-Yumoto and Gōra
|-
| [[Ehime Prefecture|Ehime]]
| [[Iyo Railway|Iyotetsu]] [[Iyotetsu Yokogawara Line|Yokogawara Line]] and [[Iyotetsu Gunchu Line|Gunchū Line]] ||
|-
| [[Yokkaichi, Mie]]
| [[Yokkaichi Asunarou Railway]] [[Yokkaichi Asunarou Railway Utsube Line|Utsube Line]], [[Yokkaichi Asunarou Railway Hachiōji Line|Hachiōji Line]] ||
|-
| [[Mie Prefecture|Mie]]
| [[Sangi Railway Hokusei Line]] ||
|-
| [[Rail transport in Mexico|Mexico]]
| [[Mexico City]]
| [[Sistema de Transporte Colectivo|STC]]
| [[Mexico City Metro Line A|Line A]]
|-
| rowspan="2" | [[Rail transport in the Netherlands|Netherlands]]
| [[The Hague]], [[Zoetermeer]], [[Rotterdam]] and adjacent cities
| [[Randstadrail]] ||
|- 
| [[Rotterdam]]
| [[Rotterdam Metro]]
| North of Capelsebrug station overhead wires
|-
| rowspan= "2" |[[Rail transport in the Philippines|Philippines]]
| rowspan= "2" |[[Metro Manila]]
| [[Manila LRT Line 1]] ([[Manila Light Rail Transit System]])
| Between [[Dr. Santos station|Dr. Santos]] and [[Roosevelt station (Line 1)|Fernando Poe Jr.]]
|-
| [[Manila MRT Line 3]] (Manila Metro Rail Transit System)
| Between [[North Avenue station (Line 3)|North Avenue]] and [[Taft Avenue station|Taft Avenue]]
|-
| [[Rail transport in Switzerland|Switzerland]]
| [[Canton of Aargau]]
| [[Menziken–Aarau–Schöftland railway line]] ||
|-
| [[Rail transport in Taiwan|Republic of China (Taiwan)]]
| [[New Taipei]]
| [[New Taipei Metro]]: all Light Rail lines ||
|-
| rowspan="3" | [[Railway electrification in Turkey|Turkey]]
| [[Adana]]
| [[Adana Metro]] ||
|-
|[[Eskişehir]]
|[[EsTram]]
|
|-
| [[Istanbul]]
| [[Istanbul Metro]]
| Line [[M1 (Istanbul Metro)|M1]] and [[M5 (Istanbul Metro)|M5]]
|-
|[[United Kingdom]]
|[[Manchester]]
|[[Manchester Metrolink]]
|All lines
|}

====1,200 V DC====
{| class="wikitable" style="width:100%"
|-
! style="width:20%" | Country
! style="width:20%" | Location
! style="width:25%" | Name of system
! style="width:35%" | Notes
|-
| [[Rail transport in Cuba|Cuba]]
| [[Havana]] – [[Matanzas]] and branches
| [[Ferrocarriles Nacionales de Cuba]]
| Originally (and still known as) the [[Hershey Electric Railway]]
|-
| [[Rail transport in Germany|Germany]]
| [[Lusatia]] ||
| {{RailGauge|900 mm}} gauge mining railways in the [[lignite]] district
|-
| rowspan="2" | [[Rail transport in Spain|Spain]]
| [[Barcelona]], [[Catalonia]]
| [[Barcelona Metro]]
| Uses an [[overhead conductor rail]]/beam system
|-
| [[Palma, Majorca|Palma]] – [[Sóller]], [[Majorca]]
| [[Ferrocarril de Sóller|Sóller Railway]]
|<ref>{{Cite web |url=http://www.sollernet.com/trendesoller/ |title=Sóller Website |access-date=2007-02-22 |archive-date=2006-04-20 |archive-url=https://web.archive.org/web/20060420041839/http://www.sollernet.com/trendesoller/ |url-status=dead}}</ref>
|-
| rowspan="5" | [[Rail transport in Switzerland|Switzerland]]
| [[Canton of Bern]] / [[canton of Solothurn]]
| [[Aare Seeland mobil|Aare Seeland mobil (ASm)]]
| {{sfnp|Schweers+Wall|2012|p=11}}{{sfnp|Schweers+Wall|2012|p=19}}
|-
| [[Dietikon]], [[canton of Zürich]] – [[Wohlen, Aargau|Wohlen]], [[canton of Aargau]]
| [[Bremgarten-Dietikon-Bahn]] ||
|-
| [[Zürich]] – [[Esslingen, Switzerland|Esslingen]], [[canton of Zürich]]
| [[Forchbahn]]
| Forchbahn proper only; Forchbahn trains access their Zürich terminus via the [[Trams in Zürich|Zürich tram network]], which is electrified at 600 V DC. The rolling stock is equipped to run off both voltages.
|-
| [[Frauenfeld]], [[canton of Thurgau]] – [[Wil]], [[canton of St. Gallen]]
| [[Frauenfeld-Wil-Bahn]] ||
|-
| [[Meiringen]] – [[Innertkirchen]], [[canton of Bern]]
| [[Meiringen–Innertkirchen Bahn]] ||
|- style="background:#fee"
|rowspan=5| [[Railroad electrification in the United States|United States]]
| [[Baltimore]]–[[Annapolis]], [[Maryland]]
| [[Baltimore and Annapolis Railroad]]
| 1914–1950
|- style="background:#fee"
| [[Los Angeles]] – [[Inland Empire]], [[California]]
| [[Pacific Electric]] [[Upland–San Bernardino]]
| Operated 1914–1950. 600 V in city limits
|- style="background:#fee"
| [[California]]
| [[Sacramento Northern Railway]]
| Operated 1910–1936. Converted to 1,500 V. The southern division was built by the Oakland, Antioch and Eastern Railway.
|- style="background:#fee"
| [[East Bay]], [[California]]
| [[East Bay Electric Lines]]
| 1911–1941
|- style="background:#fee"
| [[Oregon]]
| [[Oregon Electric Railway]]
| 1912–1945
|}
{{Incomplete list|date=January 2015}}

====1,500 V DC====
{| class="wikitable" style="width:100%"
|-
! style="width:20%" | Country
! style="width:20%" | Location
! style="width:25%" | Name of system
! style="width:35%" | Notes
|-
| rowspan="2" | [[Rail transport in Argentina|Argentina]]
| rowspan="2" | [[Buenos Aires]]
| [[Buenos Aires Metro]]
| Lines A, C, D, E and H
|-
| [[Tren de la Costa]]
| Suburban line
|-
| rowspan="4" | [[Railway electrification in Australia|Australia]]
| [[Melbourne]]
| [[Railways in Melbourne|Melbourne Suburban Railways]] ||
|-
| Regional [[New South Wales]]
| [[NSW TrainLink]] Intercity 
| Newcastle and Central Coast, Blue Mountains to Lithgow and South Coast to Kiama
|-
| rowspan="2" | [[Sydney]]
| [[Sydney Trains]] ||
|-
| [[Sydney Metro]]
| Lines partially converted from [[Sydney Trains]] and North West Eppng to Tallawong only, completely new lines will use {{25 kV 50 Hz}}<ref name="wsa" />
|-
| [[Rail transport in Bangladesh|Bangladesh]]
| [[Dhaka]]
| [[Dhaka Metro Rail]]
| [[MRT Line 6 (Dhaka Metro)]]
|-
| [[Rail transport in Brazil|Brazil]]
| [[São Paulo]]
| [[São Paulo Metro]]
| Lines 4 and 5
|-
| [[Rail transport in Bulgaria|Bulgaria]]
| [[Sofia]]
| [[Sofia Metro]]
| Line 3 Gorna Banya – Hadzhi Dimitar
|-
| rowspan=2 | [[Rail transport in Canada|Canada]]
| [[Montreal]]
| [[Réseau express métropolitain]]
| Incl. [[Deux-Montagnes line]] that was built by [[Canadian Northern Railway|CNoR]] in 1918 as 2400&nbsp;V DC, converted to 3000&nbsp;V DC in the 1980s, converted to 25&nbsp;kV 60&nbsp;Hz in 1995 by the [[Ministère des Transports du Québec|MTQ]], being converted to light-metro standard and 1500&nbsp;V DC
|-
| [[Ottawa]]
| [[O-Train]]
| [[Line 1 (O-Train)|Line 1]] only; [[Line 2 (O-Train)|Line 2]] is diesel LRT.
|-
| rowspan="36" | [[Rail transport in China|China]]
| [[Beijing]]
| [[Beijing Subway]]
| Lines [[Line 6 (Beijing Subway)|6]], [[Line 14 (Beijing Subway)|14]] and [[Line 16 (Beijing Subway)|16]]
|-
| [[Changchun]]
| [[Changchun Rail Transit]]
| Lines [[Line 1 (Changchun Subway)|1]] and [[Line 2 (Changchun Subway)|2]]
|-
| [[Changsha]]
| [[Changsha Metro]] ||
|-
| [[Changzhou]]
| [[Changzhou Metro]] ||
|-
| [[Chengdu]]
| [[Chengdu Metro]]
| Except lines [[Line 17 (Chengdu Metro)|17]], [[Line 18 (Chengdu Metro)|18]] and [[Line 19 (Chengdu Metro)|19]]
|-
| [[Chongqing]]
| [[Chongqing Rail Transit]]
| Lines [[Line 1 (Chongqing Rail Transit)|1]], [[Line 4 (Chongqing Rail Transit)|4]], [[Line 5 (Chongqing Rail Transit)|5]], [[Line 6 (Chongqing Rail Transit)|6]], [[Line 10 (Chongqing Rail Transit)|10]] and [[Loop line (Chongqing Rail Transit)|Loop Line]]
|-
| [[Dalian]] || [[Dalian Metro]] ||
|-
| [[Dongguan]] || [[Dongguan Rail Transit]] ||
|-
| [[Fushun]] || [[Fushun Electric Railway]] ||
|-
| [[Fuzhou]] || [[Fuzhou Metro]] ||
|-
| [[Guangzhou]] || [[Guangzhou Metro]]
| Except Lines [[Line 4 (Guangzhou Metro)|4]], [[Line 5 (Guangzhou Metro)|5]], [[Line 6 (Guangzhou Metro)|6]], [[Line 14 (Guangzhou Metro)|14]] and [[Line 21 (Guangzhou Metro)|21]], but overhead wires installed in depots.
|-
| [[Guiyang]] || [[Guiyang Metro]] ||
|-
|[[Haining]]
|[[Hanghai line|Hangzhou-Haining Intercity Rail]]
|
|-
| [[Hangzhou]] || [[Hangzhou Metro]] ||
|-
| [[Harbin]] || [[Harbin Metro]] ||
|-
| [[Hefei]] || [[Hefei Metro]] ||
|-
| [[Hohhot]] || [[Hohhot Metro]] ||
|-
| [[Jinan]] || [[Jinan Metro]] ||
|-
| [[Lanzhou]] || [[Lanzhou Metro]] ||
|-
| [[Nanchang]] || [[Nanchang Metro]] ||
|-
| [[Nanjing]] || [[Nanjing Metro]] ||
|-
| [[Nanning]] || [[Nanning Metro]] ||
|-
| [[Ningbo]] || [[Ningbo Rail Transit]]
| [[Line 4 (Ningbo Rail Transit)|Line 4]] uses [[third rail]] for returning current
|-
| [[Shanghai]] || [[Shanghai Metro]]
| Except Lines [[Line 16 (Shanghai Metro)|16]] and [[Line 17 (Shanghai Metro)|17]], but overhead wires installed in the depot for line 16.
|-
|[[Shaoxing]]
|[[Shaoxing Metro]]
|
|-
| [[Shenyang]] || [[Shenyang Metro]] ||
|-
| [[Shenzhen]] || [[Shenzhen Metro]]
| Except Lines [[Line 3 (Shenzhen Metro)|3]] and [[Line 6 (Shenzhen Metro)|6]], but overhead wires installed in the depot for line 6.
|-
| [[Shijiazhuang]] || [[Shijiazhuang Metro]] ||
|-
| [[Suzhou, Jiangsu|Suzhou]] || [[Suzhou Metro]] ||
|-
| [[Tianjin]] || [[Tianjin Metro]]
| Lines [[Line 5 (Tianjin Metro)|5]], [[Line 6 (Tianjin Metro)|6]] and [[Line 9 (Tianjin Metro)|9]] only
|-
| [[Ürümqi]] || [[Ürümqi Metro]] ||
|-
| [[Wuhan]] || [[Wuhan Metro]]
| Line [[Line 6 (Wuhan Metro)|6]] only
|-
| [[Xi’an]] || [[Xi'an Metro]] ||
|-
| [[Xiamen]] || [[Xiamen Metro]] ||
|-
| [[Xuzhou]] || [[Xuzhou Metro]] ||
|-
| [[Zhengzhou]] || [[Zhengzhou Metro]] ||
|-
| [[Rail transport in Colombia|Colombia]]
| [[Medellín]]
| [[Medellín Metro]]
| Lines A and B
|-
| [[Rail transport in Peru|Peru]]
| [[Lima]]
| [[Lima Metro]]
|-
| [[Rail transport in the Czech Republic|Czech Republic]]
| [[Tábor]] – [[Bechyně]]
| [[Správa železnic]]
| Tábor – Bechyně line only (24&nbsp;km, built in 1903)
|-
| [[Rail transport in the Dominican Republic|Dominican Republic]]
| [[Santo Domingo]]
| [[Santo Domingo Metro]] ||
|-
| [[Rail transport in Egypt|Egypt]]
| [[Cairo]]
| [[Cairo Metro]]
| [[Cairo Metro Line 1|Line 1]]<ref>{{cite web|last1=Barrow|first1=Keith|title=Cairo to order new trains for metro Line 1|url= http://www.railjournal.com/index.php/africa/cairo-to-order-new-trains-for-metro-line-1.html |website=[[International Railway Journal]]|publisher=Simmons-Boardman Publishing Inc.|access-date=23 January 2015|date=14 March 2014}}</ref><ref>{{cite web |title=Cairo Metro Tender for New Rolling Stock|url= http://menarailpost.com/2014/03/cairo-metro-tender-new-rolling-stock/ |website=MENA RAIL POST|access-date=23 January 2015|date=16 March 2014|url-status=dead|archive-url= https://web.archive.org/web/20150123141407/http://menarailpost.com/2014/03/cairo-metro-tender-new-rolling-stock/ |archive-date=23 January 2015}}</ref>
|- id="fr1.5"
| [[Railway electrification in France|France]]
| colspan=2 | [[SNCF|Société Nationale des Chemins de fer (SNCF)]]
| [[25 kV AC railway electrification|25&nbsp;kV&nbsp;AC]] used on new high speed lines ([[TGV]]) and in the north ([[#fr25-50|see below]])
|- id="hk1.5"
| [[Rail transport in Hong Kong|Hong Kong]]
| [[Hong Kong]]
| [[MTR|Mass Transit Railway]]
| Except [[East Rail line]] and [[Tuen Ma line]] which use {{25 kV 50 Hz}} ([[#hk25-50|see below]]) and the [[Light Rail (MTR)|light rail]] which uses 750 V DC
|-
| [[Rail transport in Hungary|Hungary]]
| [[Budapest]]
| [[Budapest Cog-wheel Railway]]
| Converted from 550 V DC (city trams nominal voltage at that time) during the 1973 reconstruction.
|-
| rowspan="2" | [[Rail transport in Indonesia|Indonesia]]
| [[Jakarta]]
| [[KRL Jabodetabek]]<br />[[Jakarta MRT]] ||
|-
| [[Yogyakarta]]-[[Surakarta|Solo]]
| [[KRL Commuterline Yogyakarta–Solo]] ||
|-
| [[Rail transport in Ireland|Ireland]]
| [[Dublin]]
| [[Dublin Area Rapid Transit]] ||
|-
| [[Rail transport in Israel|Israel]]
| [[Tel Aviv]]
| [[Tel Aviv Light Rail]] 
| [[Red Line (Tel Aviv Light Rail)|Red Line]] runs partially as a [[premetro]]
|-
| [[Rail transport in Italy|Italy]]
| [[Rome]]
| [[Rome Metro]]
| [[Line A (Rome Metro)|Line A]], [[Line B (Rome Metro)|Line B]], [[Rome–Lido railway|Line Roma-Ostia Lido]]
|-
| rowspan="3" | [[Railway electrification in Japan|Japan]]
| colspan="2" | [[Japan Railways]] (JR) lines
| Most electrified lines in [[Kantō region|Kantō]], [[Chūbu region|Chūbu]], [[Kansai region|Kansai]], [[Chugoku region|Chūgoku]], and [[Shikoku]] (except [[Shinkansen]] and Hokuriku region)
|-
| colspan="2" | Most [[private railway]] lines
| rowspan="2" |See [[Railway electrification in Japan]] for more details including exceptions
|-
| colspan="2" | Most [[rapid transit|subway]] lines
|- id="kr1.5"
| rowspan="6" | [[Rail transport in South Korea|South Korea]]
| [[Seoul National Capital Area]]
| [[Seoul Subway]]
| Except [[Korail]] Subway Line (except Line 3)<br />([[#kr25-60|see below]])
|-
| [[Busan]] || [[Busan Subway]] ||
|-
| [[Daegu]] || [[Daegu Subway]] ||
|-
| [[Daejeon]] || [[Daejeon Subway]] ||
|-
| [[Gwangju]] || [[Gwangju Subway]] ||
|-
| [[Incheon]] || [[Incheon Subway Line 1]] ||
|-
| rowspan="3" | [[Rail transport in Mexico|Mexico]]
| [[Guadalajara]]
| [[Sistema de Tren Eléctrico Urbano|SITEUR]]
| Line 3
|-
| [[Mexico City]]
| [[Sistema de Transporte Colectivo|STC]]
| [[Mexico City Metro Line 12|Line 12]]
|-
| [[Monterrey]]
| [[Monterrey Metro|Sistema de Transporte Colectivo Metrorrey]]
| 
|- id="nl1.5"
| [[Rail transport in the Netherlands|Netherlands]]
| colspan=2 | [[Nederlandse Spoorwegen|Nederlandse Spoorwegen – Dutch Railways (NS)]]
| [[25 kV AC railway electrification|25&nbsp;kV&nbsp;AC]] used on high speed lines and freight line [[Betuweroute]] ([[#nl25-50|see below]]); The existing 1500V DC lines might be converted to 3kV DC.
|-
| [[Railway electrification in New Zealand|New Zealand]]
| [[Wellington]]
| [[Public transport in Wellington#Trains|Wellington suburban]]
| Except Wairarapa Line beyond Upper Hutt. Since 2011, the nominal voltage was 1600&nbsp;V but with the same tolerances as 1500&nbsp;V (i.e. 1300–1800&nbsp;V), making it backwards-compatible with 1500&nbsp;V rolling stock. Since May 2016 the operating voltage was increased to 1700 V DC following the full introduction of the [[New Zealand FP class electric multiple unit|Matangi EMUs]].
|-
| rowspan="3" | [[Rail transport in the Philippines|Philippines]]
| [[Metro Manila]]
| [[Manila Metro Rail Transit System|Manila MRT]]
| [[Makati Intra-city Subway]] (Line 5) and [[Metro Manila Subway]] (Line 9) only. [[MRT Line 7|Line 7]] uses 750 V DC third rail.
|-
| [[Metro Manila]]<br />[[Rizal (province)|Rizal]]
| [[Manila Light Rail Transit System|Manila LRT]]
| [[LRT Line 2 (Metro Manila)|Line 2]] only. Line 1 uses 750 V DC.
|-
| Metro Manila<br />[[Central Luzon]]<br />[[Laguna (province)|Laguna]]
| [[Philippine National Railways]]
| [[North–South Commuter Railway]]
|-
| [[Rail transport in Portugal|Portugal]]
| [[Lisbon]], [[Oeiras, Portugal|Oeiras]] and [[Cascais]]
| [[Linha de Cascais]]
| To be converted to 25kV AC.<ref>{{Cite web|last=|date=2020-07-23|title=AC conversion planned in Cascais line upgrade|url= https://www.railwaygazette.com/ac-conversion-planned-in-cascais-line-upgrade/57004.article |access-date=2021-07-27|website=Railway Gazette International|language=en}}</ref> 
|-
| [[Rail transport in Singapore|Singapore]]
| Singapore
| [[Mass Rapid Transit (Singapore)|Mass Rapid Transit]]
| [[North East MRT line|North East Line]], operated by [[SBS Transit]]
|-
| [[Rail transport in Slovakia|Slovakia]]
| [[Tatra Mountains]] in the area of [[Poprad]]
| [[Tatra Electric Railway]] ||
|-
| rowspan="6" | [[Rail transport in Spain|Spain]]
| Catalonia
| [[Ferrocarrils de la Generalitat de Catalunya]] ||
|-
| Madrid
| [[Administrador de Infraestructuras Ferroviarias|ADIF]]
| Only [[C-9 (Cercanías Madrid)|Cercedilla-Cotos line]]
|-
| [[Mallorca]]
| [[Serveis Ferroviaris de Mallorca]] ||
|-
| North coast (Asturias-Leon-Cantabria-Basque Country)
| [[FEVE]] ||
|-
| Basque Country
| [[Euskotren Trena]] ||
|-
| Valencian Community
| [[Ferrocarrils de la Generalitat Valenciana]] ||
|-
| [[Rail transport in Sweden|Sweden]]
| [[Stockholm]]
| [[Roslagsbanan]] ||
|-
| rowspan="11" | [[Rail transport in Switzerland|Switzerland]]
| [[Aigle]] – [[Leysin]], [[canton of Vaud]]
| [[Chemin de fer Aigle–Leysin|Chemin de fer Aigle–Leysin (AL)]] ||
|-
| [[Aigle]], [[Vaud]] – [[Champéry]], [[canton of Valais]]
| [[Chemin de fer Aigle–Ollon–Monthey–Champéry|Chemin de fer Aigle–Ollon–Monthey–Champéry (AOMC)]] ||
|-
| [[Aigle]] – [[Les Diablerets]], [[canton of Vaud]]
| [[Chemin de fer Aigle–Sépey–Diablerets|Chemin de fer Aigle–Sépey–Diablerets (ASD)]]
|
|-
| [[Interlaken]] – [[Lauterbrunnen]] / [[Grindelwald]], [[canton of Bern]]
| [[Berner Oberland Bahn|Berner Oberland Bahn (BOB)]] ||
|-
| [[Canton of Jura]]
| [[Chemins de fer du Jura|Chemins de fer du Jura (CJ)]]
| [[Metre gauge]] lines only
|-
| [[Lausanne]] – [[Bercher]], [[canton of Vaud]]
| [[Chemin de fer Lausanne–Échallens–Bercher|Chemin de fer Lausanne–Échallens–Bercher (LEB)]] ||
|-
| [[Nyon]] – [[La Cure]], [[canton of Vaud]]
| [[Chemin de fer Nyon-St-Cergue-Morez|Chemin de fer Nyon-St-Cergue-Morez (NStCNM)]]
| Converted in the 1980s from 2200 V DC
|-
| [[Vitznau]] / [[Goldau]] – [[Rigi]]
| [[Rigi Bahnen|Rigi Bahnen (VRB/ARB)]] ||
|-
| [[Wilderswil]] – [[Schynige Platte]], [[canton of Bern]]
| [[Schynige Platte Bahn|Schynige Platte Bahn (SPB)]] ||
|-
| [[Liestal]] – [[Waldenburg, Switzerland|Waldenburg]], [[canton of Basel-Country]]
| [[Waldenburgerbahn|Waldenburgerbahn (WB)]] ||
|-
| [[Lauterbrunnen]] – [[Grindelwald]], [[canton of Bern]]
| [[Wengernalpbahn|Wengernalpbahn (WAB)]] ||
|-
| rowspan="2" | [[Railway electrification in Turkey|Turkey]]
| [[Bursa]]
| [[Bursaray]] ||
|-
| [[Istanbul]]
| [[Istanbul Metro]]
| Line [[M3 (Istanbul Metro)|M3]], [[M4 (Istanbul Metro)|M4]], [[M7 (Istanbul Metro)|M7]], [[M8 (Istanbul Metro)|M8]], [[M9 (Istanbul Metro)|M9]] and [[M11 (Istanbul Metro)|M11]]
|-
| [[Railway electrification in Great Britain|United Kingdom]]
| [[Newcastle railway station|Newcastle]], [[Sunderland railway station|Sunderland]], [[Gateshead]] and [[Tyneside]]
| [[Tyne & Wear Metro]]
| Light rail
|-
| rowspan="6" | [[Railroad electrification in the United States|United States]]
| [[Chicago]]
| [[Metra Electric District]] ||
|- style="background:#fee"
| [[California]]
| [[Sacramento Northern Railway]]
| operated 1936–{{circa|1960s}}
|-
| [[Maryland]]
| [[Purple Line (Maryland)|Purple Line]]
| Light rail under construction
|-
| Northern [[Indiana]] & [[Chicago]]
| [[South Shore Line]] ||
|- style="background:#fee"
| [[Oregon]]
| [[Southern Pacific Red Electric Lines]]
| 1914–1929
|-
| [[Seattle]]
| [[Link light rail]]
| 1 and 2 lines only
|}

====3 kV DC====
{| class="wikitable" style="width:100%"
|-
! style="width:20%" | Country
! style="width:20%" | Location
! style="width:25%" | Name of system
! style="width:35%" | Note
|- id="be3"
| [[Rail transport in Belgium|Belgium]]
| colspan="2"| [[National Railway Company of Belgium|Belgium National Railways (SNCB)]]
| National standard. [[25 kV AC railway electrification|25&nbsp;kV&nbsp;AC]] used on [[High-speed rail in Belgium|high speed lines]] and some lines in the south ([[#be25-50|see below]]).
|-
| rowspan="2"| [[Rail transport in Brazil|Brazil]]
| [[Rio de Janeiro]]
| [[SuperVia|SuperVia Trens Urbanos]] ||
|-
| [[São Paulo]]
| [[São Paulo Metropolitan Trains]] ||
|-
| [[Rail transport in Chile|Chile]]
| colspan="2"| [[Empresa de los Ferrocarriles del Estado]] ||
|- id="cz3"
| [[Rail transport in the Czech Republic|Czech Republic]]
| colspan="2" | [[Správa železnic]]
| Northern part of network only (approx. the Děčín – Praha – Ostrava route). The system change stations are Kadaň-Prunéřov, Beroun, Benešov u Prahy, Kutná Hora hl.n., Svitavy, Nezamyslice, Říkovice. The southern part uses 25&nbsp;kV 50&nbsp;Hz ([[#cz25-50|see below]]).<br />The 3 kV system is to be phased out in favour of 25&nbsp;kV AC.<ref name="Czechia3kVto25kV">{{cite news |first=Quintus |last=Vosman |title=Czechs to switch to 25&nbsp;kV ac electrification |url=https://www.railjournal.com/passenger/main-line/czechs-to-switch-to-25kv-ac-electrification/ |work=International Railway Journal |date=4 January 2017 }}</ref>
|-
| [[Rail transport in Estonia|Estonia]]
| [[Tallinn]]
| [[Elron (rail transit)|Elron]]
| Commuter rail only
|-
| [[Rail transport in Georgia|Georgia]]
| colspan="2" | [[Georgian Railways]]
| In fact 3,300&nbsp;V
|- id="it3"
| [[Rail transport in Italy|Italy]]
| colspan="2" | [[Rete Ferroviaria Italiana]]
| [[25 kV AC railway electrification|25&nbsp;kV&nbsp;AC]] used on new [[High-speed rail in Italy|high speed lines]] ([[#it25-50|see below]])
|-
| [[Rail transport in North Korea|North Korea]]
| colspan="2" | [[Korean State Railway]]
| National standard
|-
| [[Rail transport in Latvia|Latvia]]
| colspan="2" | [[Latvian Railways]]
| Commuter rail only.
|-
| [[Rail transport in Morocco|Morocco]]
| colspan="2" | [[ONCF]]
| National standard
|-
| [[Rail transport in the Netherlands|Netherlands]]
| colspan="2" | ProRail
| Planned
|-
| rowspan="2" | [[Rail transport in Poland|Poland]]
| colspan="2" | [[Polish State Railways]]
| National standard. Planned [[High-speed rail in Poland|high speed lines in Poland]] will use [[25 kV AC railway electrification|25&nbsp;kV&nbsp;AC]]<ref>{{cite web |author=Michał Szymajda |title=Szybka linia kolejowa "Y" przez CPK ma być gotowa do 2030 roku |trans-title=High-speed 'Y' railway line through CPK should be completed by 2030 |url=https://www.rynek-lotniczy.pl/wiadomosci/szybka-linia-kolejowa-34y34-przez-cpk-ma-byc-gotowa-do-2030-roku-7669.html |access-date=5 February 2020 |work=Rynek Lotniczy |date=17 January 2020 |language=pl}}</ref>
|-
| [[Warsaw]] and suburbs
| [[Warszawska Kolej Dojazdowa]]
| 600 V DC until 27 May 2016
|- id="ru3"
| [[Railway electrification in the Soviet Union|Russia]]
| colspan="2" | [[Russian Railways]]
| New electrification use only [[25 kV AC railway electrification|25&nbsp;kV&nbsp;AC]] ([[#ru25-50|see below]]), except Moscow Central Circle and other interconnection lines in Moscow, and 2 interconnection lines (Veymarn line and Kamennogorsk line) in St. Petersburg. Sverdlovsk railway and West Siberian railway to be converted to 25&nbsp;kV AC.
|- id="sk3"
| [[Rail transport in Slovakia|Slovakia]]
| colspan="2" | [[Železnice Slovenskej republiky|Slovak Republic Railways (ŽSR)]]
| Northern main line (connected to [[Czech Republic]] and [[Poland]]) and eastern lines (around [[Košice]] and [[Prešov]]), conversion to [[25 kV AC railway electrification|25&nbsp;kV&nbsp;AC]] planned,{{r|Czechia3kVto25kV}} and the broad gauge line between [[Košice]] and the [[Ukraine]] border (it will remain 3&nbsp;kV until new broad gauge line construction, then convert to 25&nbsp;kV&nbsp;AC), planned new broad gauge line is supposed to use 25&nbsp;kV&nbsp;AC. Currently, the part north and east of the station Púchov uses 3&nbsp;kV DC, the rest uses 25&nbsp;kV 50&nbsp;Hz ([[#sk25-50|see below]]).
|-
| [[Rail transport in Slovenia|Slovenia]]
| colspan="2" | [[Slovenian Railways]]
| National standard
|- id="za3"
| [[Rail transport in South Africa|South Africa]]
| colspan="2" | [[Transnet Freight Rail]]; [[Metrorail (South Africa)|Metrorail]]
| National standard; also 25&nbsp;kV AC ([[#za25-50|see below]]) and 50&nbsp;kV AC used
|- id="es3"
| [[Rail transport in Spain|Spain]]
| colspan="2" | [[Administrador de Infraestructuras Ferroviarias]]
| [[25 kV AC railway electrification|25&nbsp;kV&nbsp;AC]] used on high speed lines ([[AVE]]) ([[#es25-50|see below]])
|- id="ua3"
| [[Rail transport in Ukraine|Ukraine]]
| colspan="2" | [[Ukrainian Railways]]
| In east (Donetsk industrial zone), in west (west from L'viv – connecting to Slovakia and Poland), to be converted to [[25 kV AC railway electrification|25&nbsp;kV&nbsp;AC]]<ref>[[Railway Gazette International]] April 2008, p 240</ref> ([[#ua25-50|see below]])
|}

===={{nowrap|15 kV}} AC, {{frac|16|2|3}}&nbsp;Hz / {{nowrap|16.7 Hz}}====
{{Main|15 kV AC railway electrification}}
{| class="wikitable" style="width:100%"
|-
! style="width:20%" | Country
! style="width:20%" | Location
! style="width:25%" | Name of system
! style="width:35%" | Notes
|-
| [[Rail transport in Austria|Austria]]
| colspan="2" | [[ÖBB]]
| National standard. Planned new [[High-speed rail in Austria|high speed lines]] will near the border use [[25 kV AC railway electrification|25&nbsp;kV&nbsp;AC]]: Innsbruck-Italy and broad gauge to Ukraine. Austrian National Railways also operate in the small country of [[Liechtenstein]], which also uses 15 kV AC.
|-
| [[Rail transport in the Czech Republic|Czech Republic]]
| [[Znojmo]] - [[Retz]]
| [[Správa železnic]]
| Isolated section near border with Austria
|-
| [[Rail transport in Germany|Germany]]
| colspan="2" | [[Deutsche Bahn|Deutsche Bahn - German National Railways (DB)]]
| rowspan="3" | National standard
|-
| [[Railway electrification in Norway|Norway]]
| colspan="2" | [[Norwegian National Rail Administration]]
|-
| [[Rail transport in Sweden|Sweden]]
| colspan="2" | [[Swedish Transport Administration]]
|-
| rowspan="5" | [[Rail transport in Switzerland|Switzerland]]
| [[Canton of Bern]]
| [[BLS AG|BLS]] ||
|-
| [[Central Switzerland]] and [[Bernese Highlands]]
| [[Zentralbahn]] ||
|-
| [[Canton of Vaud]]
| [[Chemin de fer Bière-Apples-Morges|Chemin de fer Bière-Apples-Morges (BAM)]] ||
|-
| [[Canton of Zürich]]
| [[Sihltal Zürich Uetliberg Bahn]] ||
|-
| colspan="2" | [[Swiss Federal Railways|Swiss Federal Railways (SBB CFF FFS)]] ||
|}

===={{nowrap|25 kV}} AC, {{nowrap|50 Hz}}====
{{Main|25 kV AC railway electrification}}
{| class="wikitable" style="width:100%"
|-
! style="width:20%" | Country
! style="width:20%" | Location
! style="width:25%" | Name of system
! style="width:35%" | Notes
|-
| [[Rail transport in Argentina|Argentina]]
| [[Buenos Aires]]
| [[Roca Line]]
| [[Constitución station|Constitución]] – [[Ezeiza, Buenos Aires|Ezeiza]]<br />Constitución – [[Alejandro Korn, Buenos Aires|Alejandro Korn]]<br />Constitución – [[Bosques, Buenos Aires|Bosques]]<br />Constitución – [[La Plata]]
|-
| rowspan="4" | [[Railway electrification in Australia|Australia]]
| [[Brisbane]], [[North Coast railway line, Queensland|North Coast line]], [[Blackwater railway system|Blackwater]] and [[Goonyella railway line|Goonyella]] coal railways
| [[Queensland Rail]] ||
|-
| [[Perth]]
| [[Transperth]] ||
|-
| [[Adelaide]]
| [[Adelaide Metro]]
| [[Seaford railway line|Seaford]]/[[Flinders railway line|Flinders]] and [[Gawler railway line|Gawler]] lines electrified
|-
| [[Sydney]]
| [[Sydney Metro]]
| Completely new lines ([[Sydney Metro Western Sydney Airport|Western Sydney Airport]] and [[Sydney Metro West]]) converted lines use 1500V DC<ref name="wsa">{{cite web|title=Chapter 7: Project description – operation|url=https://www.sydneymetrowsa.com/static/fa743777a755f570043e64b84a19f664/eis-chapter-7.pdf|website=Sydney Metro – Western Sydney Airport|access-date=2021-10-25}}</ref>
|-
| [[Rail transport in Belarus|Belarus]] ||||
| National standard
|- id="be25-50"
| [[Rail transport in Belgium|Belgium]]
| colspan="2" | [[National Railway Company of Belgium|Belgium National Railways (NMBS/SNCB)]]
| [[High-speed rail in Belgium|High-speed lines]] and some other lines. The rest of the network is 3 kV DC ([[#be3|see above]])
|-
| [[Rail transport in Bosnia and Herzegovina|Bosnia and Herzegovina]] ||||||
|-
| [[Rail transport in Botswana|Botswana]] ||||
| Proposed line to [[Namibia]]
|-
| [[Rail transport in Bulgaria|Bulgaria]]
| colspan="2"| [[Bulgarian State Railways]] ||
|-
| rowspan="4" | [[Rail transport in China|China]]
| colspan="2" | [[China Railway]]
| National standard
|-
| [[Beijing]]
| [[Beijing Subway]]
| Daxing Airport Line only
|-
| [[Chengdu]]
| [[Chengdu Metro]]
| Lines [[Line 17 (Chengdu Metro)|17]], [[Line 18 (Chengdu Metro)|18]] and 19 only
|-
| [[Wenzhou]]
| [[Wenzhou Rail Transit]] ||
|-
| [[Rail transport in Croatia|Croatia]]
| colspan="2" | [[Croatian Railways]]
| Lines Zagreb-Rijeka and Rijeka-Šapjane formerly used 3kv DC traction
|- id="cz25-50"
| [[Rail transport in the Czech Republic|Czech Republic]]
| colspan="2" | [[Správa železnic]]
| Southern lines only (linking Karlovy Vary – Cheb – Plzeň – České Budějovice – Tábor – Jihlava – Brno – Břeclav – Slovakia), northern lines use 3&nbsp;kV DC ([[#cz3|see above]])
|-
| [[Rail transport in Denmark|Denmark]] ||
| [[Banedanmark]]
| National standard, excluding [[S-train (Copenhagen)|Copenhagen S-train]]
|-
| [[Rail transport in Djibouti|Djibouti]]
| [[Addis Ababa–Djibouti Railway]]
| [[Ethiopian Railway Corporation]] ||
|-
| [[Rail transport in Ethiopia|Ethiopia]]
| [[Addis Ababa–Djibouti Railway]]
| [[Ethiopian Railway Corporation]] ||
|-
| [[Rail transport in Finland|Finland]]
| colspan="2" |
| National standard
|- id="fr25-50"
| [[Railway electrification in France|France]]
| North and new lines
| [[SNCF]]
| A number of lines also electrified with 1.5&nbsp;kV ([[#fr1.5|see above]])
|-
| [[Rail transport in Germany|Germany]]
| [[Harz]]
| [[Rübelandbahn]] ||
|-
| [[Rail transport in Greece|Greece]]
| colspan="2" | [[Hellenic Railways Organisation]]
| National standard
|- id="hk25-50"
| [[Rail transport in Hong Kong|Hong Kong]]
| [[Kowloon]], [[New Territories]]
| [[MTR]] 
| [[East Rail line|East Rail]] and [[Tuen Ma line]]s
|-
| [[Rail transport in Hungary|Hungary]]
| colspan="2" | [[Hungarian State Railways]] and [[Raaberbahn]] ||
|-
| rowspan="10" | [[Central Organisation for Railway Electrification|India]]
| colspan="2" | [[Indian Railways]]
| Entire IR network uses the current system since 2016.
|-
| |[[Mumbai]]
| [[Mumbai Suburban Railway]]
| Conversion from 1.5 kV DC to the current system was completed in 2012 (for [[Western line (Mumbai Suburban Railway)|Western line]]<ref>{{cite web|url= https://timesofindia.indiatimes.com/city/mumbai/Western-Railway-sets-stage-for-AC-system/articleshow/11762169.cms |title=Western Railway sets stage for AC system|website=[[Times of India]]|access-date=10 April 2018}}</ref>) and 2016 (for [[Central line (Mumbai Suburban Railway)|Central line]]<ref>{{cite web|url= https://timesofindia.indiatimes.com/city/mumbai/From-May-5-faster-Central-Railway-with-AC-power/articleshow/19792072.cms?referral=PM |title=From May 5, faster Central Railway with AC power|website=Times of India|access-date=10 April 2018}}</ref><ref>{{cite web|url= https://timesofindia.indiatimes.com/city/mumbai/Soon-faster-trains-on-Kalyan-LTT-route/articleshow/28719420.cms?referral=PM |title=Soon, faster trains on Kalyan-LTT route|website=Times of India|access-date=10 April 2018}}</ref><ref>{{cite web|url= https://timesofindia.indiatimes.com/city/mumbai/Central-Railway-plans-DC/AC-switch-in-May/articleshow/32622006.cms |title=Central Railway plans DC/AC switch in May|website=Times of India|access-date=10 April 2018}}</ref>) respectively
|-
| [[Mumbai]] || [[Mumbai Metro]] ||
|-
| [[Chennai|Chennai (Madras)]] || [[Chennai Metro]] ||
|-
| [[Delhi]] || [[Delhi Metro]] ||
|-
| [[Hyderabad]] || [[Hyderabad Metro]] ||
|-
| [[Pune]] || [[Pune Metro]] ||
|-
| [[Nagpur]] || [[Nagpur Metro]] ||
|-
| [[Jaipur]] || [[Jaipur Metro]] ||
|-
| [[Lucknow]] || [[Lucknow Metro]] ||
|-
| [[Railway electrification in Iran|Iran]] ||||
| Planned
|-
| [[Rail transport in Israel|Israel]]
| colspan="2" | [[Israel Railways]]
| Construction contract awarded in December 2015.<ref>{{cite news|title=Israel Railways awards USD 500m electrification contract to Spanish SEMI|url= http://www.think-railways.com/israel-railways-awards-usd-500m-electrification-contract-spanish-semi |access-date=17 January 2016|publisher=Think Railways}}</ref> Initial test runs began December 2017.
|- id="it25-50"
| [[Rail transport in Italy|Italy]]
| colspan="2" | [[Rete Ferroviaria Italiana]] (Italian Railways Network)
| New high-speed lines only, other lines use 3&nbsp;kV DC ([[#it3|see above]])
|- id="jp25-50"
| [[Railway electrification in Japan|Japan]]
| [[Kantō region|Kantō]] (northeast of Tokyo), [[Tōhoku region|Tōhoku]], and [[Hokkaido]] regions
| [[East Japan Railway Company|JR East]] [[Tohoku Shinkansen]], [[Joetsu Shinkansen]], and [[Hokuriku Shinkansen]] (sections between [[Tokyo Station|Tokyo]] – [[Karuizawa Station|Karuizawa]], and between [[Jōetsumyōkō Station|Jōetsumyōkō]] – [[Itoigawa Station|Itoigawa]])<br />[[Hokkaido Railway Company|JR Hokkaido]] [[Hokkaido Shinkansen]]
| 25 kV AC 60&nbsp;Hz in some areas ([[#jp25-60|see below]]).
|-
| [[Rail transport in Kazakhstan|Kazakhstan]] ||||||
|-
| [[Rail transport in Laos|Laos]]
| [[Boten–Vientiane railway]] ||||
|-
| [[Rail transport in Latvia|Latvia]]
| colspan="2" | [[Latvian Railways]]
| ''Eastern lines only (planned)''
|-
| [[Rail transport in Lithuania|Lithuania]]
| Kena — Kaunas and Lentvaris — Trakai
| [[Lithuanian Railways]] (LG)
| Electrification of Naujoji Vilnia – Kena —
Gudogai (BCh) route for Vilnius – Minsk (Belarus) services is established on 2017. Further Kaunas – Klaipeda and Kaunas – Kybartai corridors electrification will follow projects.
|-
| [[Rail transport in Luxembourg|Luxembourg]]
| colspan="2" | [[Chemins de fer luxembourgeois]] (CFL)
| National standard
|-
| rowspan="4" | [[Railway electrification in Malaysia|Malaysia]]
| [[Padang Besar railway station|Padang Besar]] – [[Kuala Lumpur Sentral railway station|KL Sentral]] – [[Segamat railway station|Segamat]]
| [[KTM ETS]] (run through [[KTM West Coast railway line|West Coast railway line]]), [[Keretapi Tanah Melayu Berhad]]
| Under construction: [[Segamat railway station|Segamat]] – [[Johor Bahru Sentral railway station|Johor Bahru]]
|-
| |[[Bukit Mertajam railway station|Bukit Mertajam]] – [[Padang Rengas railway station|Padang Regas]] and [[Butterworth railway station|Butterworth]] – [[Padang Besar railway station|Padang Besar]]
| [[KTM Komuter Northern Sector]], [[Keretapi Tanah Melayu Berhad]] ||
|-
| [[Batu Caves Komuter station|Batu Caves]] – [[Pulau Sebang/Tampin railway station|Pulau Sebang/Tampin]], [[Tanjung Malim railway station|Tanjung Malim]] – [[Port Klang Komuter station|Port Klang]] and [[Kuala Lumpur Sentral railway station|KL Sentral]] – [[Terminal Skypark Komuter station|Terminal Skypark]]
| [[KTM Komuter]] Central Sector ([[Seremban Line]], [[Port Klang Line]] and [[Skypark Link]]), [[Keretapi Tanah Melayu Berhad]] ||
|-
| [[Kuala Lumpur Sentral railway station|KL Sentral]] – [[klia2 ERL station|KLIA2]]
| [[Express Rail Link]] ([[KLIA Ekspres]] and [[KLIA Transit]]) ||
|-
| [[Rail transport in Montenegro|Montenegro]]
| [[Belgrade–Bar railway]] and [[Nikšić–Podgorica railway]]
| [[Railways of Montenegro]] ||
|-
| [[Rail transport in Morocco|Morocco]]
| [[Kenitra–Tangier high-speed rail line]]
| [[ONCF]]
| Casablanca–Kenitra conventional line onto which high-speed trains continue remains at 3 kV DC<ref>{{cite magazine |date=16 November 2018 |title=Africa's first high speed line inaugurated |url=https://www.railwaygazette.com/africa/africas-first-high-speed-line-inaugurated/47556.article |access-date=18 June 2025 |magazine=[[Railway Gazette International]]}}</ref>
|-
| [[Rail transport in Namibia|Namibia]] ||||
| Proposed line to [[Botswana]]
|- id="nl25-50"
| [[Rail transport in the Netherlands|Netherlands]]
| [[HSL-Zuid]] high speed line and [[Betuweroute]] freight line
| [[Nederlandse Spoorwegen]] 
| 1.5 kV DC used on the rest of the network ([[#nl1.5|see above]])
|-
| rowspan="2" | [[Railway electrification in New Zealand|New Zealand]]
| [[Auckland]]
| [[Auckland Transport|Auckland suburban]]
| 77&nbsp;km between Swanson and Papakura; first service 28 April 2014
|-
| Central North Island
| [[North Island Main Trunk]]
| 411&nbsp;km between Palmerston North and Hamilton
|-
| [[Rail transport in North Macedonia|North Macedonia]]
| colspan="2" | [[Makedonski Železnici]] ||
|-
| [[Rail transport in Poland|Poland]]
| Hrubieszów
| [[Broad Gauge Metallurgy Line]] (LHS)
| A section from the border to Hrubieszów will be electrified in conjunction with the electrification of the connecting border – Izov – Kovel line in Ukraine.<ref>{{cite news |author=<!--Staff writer(s)/no by-line.--> |date=8 May 2021 |title=Electrification to increase Ukraine – Poland iron ore export capacity |url=https://www.railwaygazette.com/infrastructure/electrification-to-increase-ukraine-poland-iron-ore-export-capacity/59068.article |work=Railway Gazette International |url-access=registration |via=<!--http://www.railpage.com.au/news/s/electrification-to-increase-ukraine-poland-iron-ore-export-capacity--> |quote=In conjunction with the UZ scheme, Poland has agreed to electrify its 3&nbsp;km section of the route from the border to Hrubieszów. }}</ref> The reminder sections will follow.
|-
| [[Rail transport in Portugal|Portugal]]
| colspan="2" | [[Caminhos de Ferro Portugueses|Portuguese Railways (CP)]]
| Except the [[Linha de Cascais]] (1500 V DC)
|-
| [[Rail transport in Romania|Romania]]
| colspan="2" | [[Caile Ferate Romane]]
|
|- id="ru25-50"
| [[Railway electrification in the Soviet Union|Russia]]
| colspan="2" | [[Russian Railways]]
| National standard used for new electrification; some areas still use 3&nbsp;kV DC ([[#ru3|see above]])
|-
| [[Rail transport in Serbia|Serbia]]
| colspan="2" | [[Serbian Railways]]
|
|- id="sk25-50"
| [[Rail transport in Slovakia|Slovakia]]
| colspan="2" | [[Železnice Slovenskej republiky|Slovak Republic Railways (ŽSR)]]
| South-western lines only (around [[Bratislava]], [[Kúty|Kuty]], [[Trenčín|Trencin]], [[Trnava]], [[Nové Zámky|Nove Zamky]], [[Zvolen]]) and the rest of the network (except narrow gauge lines), currently {{nowrap|3 kV}} DC, to follow ([[#sk3|see above]])
|- id="za25-50"
| [[Rail transport in South Africa|South Africa]]
| colspan="2" | [[Transnet Freight Rail]], [[Gautrain]]
| Also 3&nbsp;kV DC ([[#za3|see above]]) and {{nowrap|50 kV}} {{nowrap|50 Hz}} used.
|- id="es25-50"
| [[Rail transport in Spain|Spain]]
| colspan="2" | ADIF Alta Velocidad
| High-speed lines only, other lines use 3&nbsp;kV DC ([[#es3|see above]])
|-
| rowspan=2 | [[Rail transport in Sweden|Sweden]]
| [[Malmö]] || [[Öresund Line]]
| On the [[Öresund Bridge]] and short part of land.
|-
| [[Haparanda]] || [[Tornio–Haparanda railway]]
| Connection with the Finnish railway network.
|-
| [[Rail transport in Thailand|Thailand]]
| [[Bangkok]]
| [[Suvarnabhumi Airport Link]] and [[SRT Red Lines]]||
|-
| [[Rail transport in Tunisia|Tunisia]] ||||
|<ref>[https://web.archive.org/web/20160324151013/http://www.railwaysafrica.com/news/new-25kv-electrification-in-tunisia New 25kv electrification in Tunisia] ''[[Railways Africa]]''</ref>
|-
| [[Railway electrification in Turkey|Turkey]]
| colspan="2" | [[Turkish State Railways|Turkish State Railways (TCDD)]]
| National standard
|-
| [[Railway electrification in Great Britain|United Kingdom]]
| colspan="2" | [[Network Rail]]
| Except [[Southern Region of British Railways|Southern region]] and [[Merseyrail]] and [[Northern Ireland]]
|- id="ua25-50"
| [[Rail transport in Ukraine|Ukraine]]
| colspan="2" | [[Ukrainian Railways]]
| National standard, in most of the west; also 3&nbsp;kV DC in the east ([[#ua3|see above]])
|-
| [[Rail transport in Uzbekistan|Uzbekistan]] ||||||
|- style="background:#fee"
| [[Rail transport in Zimbabwe|Zimbabwe]]
| [[Gweru]] – [[Harare]]
| [[National Railways of Zimbabwe|National Railways of Zimbabwe (NRZ)]]
| De-energised in 2008. May be renewed in the future.<ref>{{cite news |last1=Kazunga |first1=Oliver |title=Electrification of NRZ rail network set for 2nd phase |url=https://www.chronicle.co.zw/electrification-of-nrz-rail-network-set-for-2nd-phase/ |work=The Chronicle |date=1 March 2018}}</ref>
|}

===={{nowrap|25 kV}} AC, {{nowrap|60 Hz}}====
{{Main|25 kV AC railway electrification}}
{| class="wikitable" style="width:100%"
|-
! style="width:20%" | Country
! style="width:20%" | Location
! style="width:25%" | Name of system
! style="width:35%" | Notes
|- id="jp25-60"
| [[Railway electrification in Japan|Japan]]
| [[Kantō region|Kantō]] (west of Tokyo), [[Chūbu region|Chūbu]], [[Kansai region|Kansai]], [[Chūgoku region|Chūgoku]], and [[Kyushu]] regions
| [[Tokaido Shinkansen|Tōkaidō]]-[[Sanyō Shinkansen|Sanyō]] [[Shinkansen]]<br />[[Hokuriku Shinkansen]] (sections between [[Karuizawa Station|Karuizawa]] – [[Jōetsumyōkō Station|Jōetsumyōkō]], and between [[Itoigawa Station|Itoigawa]] – [[Tsuruga Station|Tsuruga]])<br />[[Kyushu Shinkansen]]<br />[[Nishi Kyushu Shinkansen]]
| 25 kV AC 50&nbsp;Hz in eastern Japan ([[#jp25-50|see above]])
|- id="kr25-60"
| rowspan="3" | [[Rail transport in South Korea|South Korea]]
| colspan="2" | [[Korail]]
| All Korail freight/passenger lines except [[Seoul subway]] Line 3 which is 1.5&nbsp;kV DC ([[#kr1.5|see above]])
|-
| [[Seoul]]
| [[Shinbundang Line|Shinbundang line]] ||
|-
| [[Incheon]], [[Seoul]]
| [[A'REX]] ||
|-
| rowspan="3" | [[Rail transport in Mexico|Mexico]]
| [[Greater Mexico City]]
| [[Ferrocarril Suburbano de la Zona Metropolitana del Valle de México]]
|<ref>{{cite web| url=http://www.fsuburbanos.com/secciones/espacio_viajero/conoce_trenes.php?ver=prestaciones| title=Espacio del Viajero: Conoce los Trenes| quote=Alimentación (Vcc. catenaria): 25000, 60&nbsp;Hz| language=es| access-date=24 May 2011| publisher=Ferrocarriles Suburbanos| location=Mexico City }}</ref>
|-
| [[Greater Mexico City|Mexico Valley]], [[Greater Toluca|Toluca Valley]]
| [[El Insurgente]]
| First section operating on 2023. Rest expected mid of 2024
|-
| [[Yucatán Peninsula]]
| [[Tren Maya]]
| Under construction. About 40% of the route to be electrified <ref>{{cite web| url=https://www.trenmaya.gob.mx/electrificacion/| title=Proyecto Tren Maya: Electrificación| quote=| language=es| access-date=24 May 2011| publisher=Fonatur| location=Mexico }}</ref>
|-
| [[Rail transport in Saudi Arabia|Saudi Arabia]]
| [[Hejaz|Hejaz region]]
| [[Haramain High-Speed Railway]]
| 
|-
| rowspan="2" | [[Rail transport in Taiwan|Republic of China (Taiwan)]]
| colspan="2" | [[Taiwan Railways Administration]]
| National standard
|-
| Western Taiwan
| [[Taiwan High Speed Railway|Taiwan High Speed Rail]] ||
|-
| rowspan="9" | [[Railroad electrification in the United States|United States]]
| [[New Jersey]]
| [[Morris & Essex Lines]], [[New Jersey Transit]]
| Converted from {{nowrap|3,000 V DC}} to {{nowrap|25 kV 60 Hz}} in 1984.
|-
| [[Aberdeen-Matawan (NJT station)|Aberdeen-Matawan]] to [[Long Branch station (NJ Transit)|Long Branch]], [[New Jersey]]
| [[North Jersey Coast Line]], [[New Jersey Transit]]
| Converted in 1978 from [[Pennsylvania Railroad]] {{nowrap|11 kV 25 Hz}} system to the {{nowrap|12.5 kV 25 Hz}} on the Rahway-Matawan ROW and {{nowrap|12.5 kV 60 Hz}} electrification extended to Long Branch in 1988. The Matawan-Long Branch voltage converted from {{nowrap|12.5 kV 60 Hz}} system to the {{nowrap|25 kV 60 Hz}} in 2002.
|-
| [[Union Station (New Haven)|New Haven]] to [[South Station|Boston]]
| [[Northeast Corridor|Northeast Corridor (NEC)]], [[Amtrak]]
| Electrified in 2000; see [[Amtrak's 60 Hz traction power system]]
|-
| [[Denver]]
| [[Regional Transportation District|Denver RTD]]
| Opened in 2016; separate 750 V DC system for light rail
|-
| [[Rancho Cucamonga station|Rancho Cucamonga]] to [[Las Vegas station (Brightline West)|Las Vegas]]
| [[Brightline West]]
| Under construction, expected to be operational by 2027–28.
|-
| [[California]]
| [[California High-Speed Rail]]
| Under construction between [[Merced station (California High-Speed Rail)|Merced]] and [[Bakersfield station (California High-Speed Rail)|Bakersfield]], set to begin operation in 2029–30.
|-
| [[San Francisco Peninsula]]
| [[Caltrain]]
| Completed in 2024; see [[Caltrain Modernization Program]]
|- style="background:#fee"
| [[New Mexico]]
| [[Navajo Mine Railroad]] ||
|- style="background:#fee"
| [[Texas]]
| Monticello & [[Martin Lake Line|Martin Lake]] lines, [[Texas Utilities]]
| De-electrified<ref>{{cite magazine |last=Harwell |first=Jeffrey A. |date=February 2012 |title=From Electric to Diesel |url= |magazine=[[Trains (magazine)|Trains]] |volume=72 |issue=2 |pages=50–51 }}</ref> around 2011
|}

=== Conductor rail systems ===
====600 V DC conductor====
All systems are [[third rail]] unless stated otherwise. Used by some older metros.
{| class="wikitable sortable" border="0" style="width:100%"
|-
! style="width:18%" | Country
! style="width:15%" | Location
! style="width:22%" | Name of system
! style="width:30%" class="unsortable" | Notes
|-
| [[Rail transport in Argentina|Argentina]]
| Buenos Aires
| [[Línea Urquiza (Buenos Aires)|Urquiza Line]]
| [[Federico Lacroze railway station|Federico Lacroze]]-General Lemos
|-
| [[Rail transport in Canada|Canada]]
| Toronto
| [[Toronto subway]]
| Only on subway lines
|- style="background:#fee"
| [[Rail transport in Greece|Greece]]
| Athens
| [[Athens-Piraeus Electric Railways|EIS/ISAP]]
| used between 1904 and 1985
|-
| [[Rail transport in Italy|Italy]]
| Turin
| [[Superga Rack Railway]] ||
|-
| rowspan="2" | [[Railway electrification in Japan|Japan]]
| Tokyo
| [[Tokyo Metro]] [[Tokyo Metro Ginza Line|Ginza Line]] and [[Tokyo Metro Marunouchi Line|Marunouchi Line]] ||
|-
| [[Nagoya, Aichi|Nagoya]], [[Aichi Prefecture|Aichi]]
| [[Nagoya Municipal Subway]] [[Higashiyama Line]] and [[Meijō Line]] ||
|-
| [[Rail transport in Sweden|Sweden]]
| Stockholm
| [[Stockholm Metro]]
| 650 V, Green and Red Lines
|-
| [[Railway electrification in Great Britain|United Kingdom]]
| Glasgow
| [[Glasgow Subway]] ||
|-
| rowspan="8" |[[Railroad electrification in the United States|United States]]
|Anaheim, California 
|[[Disneyland Monorail]]
|
|-
| Boston
| [[Massachusetts Bay Transportation Authority]]
| Red and Orange Lines, the subway part of the Blue Line southwest of [[Airport station (MBTA)|Airport station]]
|-
| Chicago
| [[Chicago "L"]]
| elevated and subway lines
|-
| Staten Island
| [[Staten Island Railway]] ||
|-
| New York City metro area
| [[Port Authority Trans-Hudson|PATH]] ||
|-
| [[Philadelphia]]
| [[SEPTA Metro]] - [[B (SEPTA Metro)|B]]
|
|-
| [[Bay Lake, Florida]]
| [[Walt Disney World Monorail System]] ||
|- style="background:#fee"
| [[California]]
| [[Sacramento Northern Railway]]
| Used 1906–{{circa|1960s}}. The Northern subdivision was built by the Northern Electric Railway and operated with overhead wires in towns.
|}

====750 V DC conductor====
Conductor rail systems have been separated into tables based on whether they are top, side or bottom contact. Used by most metros outside Asia and the former Eastern bloc.

=====Bottom contact=====
{| class="wikitable" style=width:100%
|-
! style="width:21%" | Country
! style="width:20%" | Location
! style="width:25%" | Name of system
! style="width:34%" | Notes
|-
| [[Rail transport in Algeria|Algeria]]
| [[Algiers]] || [[Algiers Metro]] ||
|-
| [[Rail transport in Austria|Austria]]
| [[Vienna]] || [[Vienna U-Bahn]] ||
|-
| [[Rail transport in Brazil|Brazil]]
| [[São Paulo]] || [[São Paulo Metro]]
| Except Lines 4 and 5
|-
| rowspan="4" | [[Rail transport in China|China]]
| [[Beijing]] || [[Beijing Subway]]
| Capital Airport Line only
|-
| [[Kunming]] || [[Kunming Metro]]
| Except Line 4
|-
| [[Tianjin]] || [[Tianjin Metro]]
| Lines 2 and 3 only
|-
| [[Wuhan]] || [[Wuhan Metro]]
| Lines 1, 2, 3 and 4 only
|-
| [[Rail transport in the Czech Republic|Czech Republic]]
| [[Prague]] || [[Prague Metro]] ||
|-
| [[Rail transport in Denmark|Denmark]]
| [[Copenhagen]] || [[Copenhagen Metro]] ||
|-
| [[Rail transport in Egypt|Egypt]]
| [[Cairo]] || [[Cairo Metro]]
| Line 2 and Line 3
|-
| [[Rail transport in Finland|Finland]]
| [[Helsinki]] || [[Helsinki Metro]] ||
|-
| rowspan="4" | [[Rail transport in Germany|Germany]]
| [[Berlin]] || [[Berlin U-Bahn]] and [[Berlin S-Bahn]]
| Lines from U5 to U9 (large profile). Negative polarity.
|-
| [[Hamburg]] || [[Hamburg U-Bahn]] ||
|-
| [[Munich]] || [[Munich U-Bahn]] ||
|-
| [[Nuremberg]] || [[Nuremberg U-Bahn]] ||
|-
| rowspan="8" | [[Central Organisation for Railway Electrification|India]]
| [[Bangalore]] || [[Namma Metro]] ||
|-
| [[Kochi]] || [[Kochi Metro]] ||
|-
| [[Ahmedabad]] || [[Ahmedabad Metro]] ||
|-
| [[Agra]] || [[Agra Metro]] ||
|-
| [[Kanpur]] || [[Kanpur Metro]] ||
|-
| [[Gurgaon]] || [[Rapid Metro Gurgaon]] ||
|-
| [[Kolkata]] || [[Kolkata Metro]] || Except Blue Line ||
|-
| [[Pune]] || [[Pune Metro]] Line 3|| Only Line 3
|-
| [[Rail transport in South Korea|South Korea]]
| [[Busan]] || [[Busan-Gimhae Light Rail Transit]] ||
|-
| [[Railway electrification in Malaysia|Malaysia]]
| [[Klang Valley]]
| [[Klang Valley Integrated Transit System]] LRT [[Ampang and Sri Petaling lines]], MRT [[Kajang line|Kajang]] and [[Putrajaya line|Putrajaya]] lines, and [[KL Monorail]]
| to be used on LRT [[Shah Alam Line]]
|-
| rowspan="2" | [[Rail transport in the Netherlands|Netherlands]]
| [[Amsterdam]] || [[Amsterdam Metro]]
| including line 51 north of Station Zuid
|-
| [[Rotterdam]] || [[Rotterdam Metro]]
| North of Capelsebrug station overhead wires
|-
| [[Railway electrification in Norway|Norway]]
| [[Oslo]] || [[Oslo T-bane]] ||
|-
| [[Rail transport in Poland|Poland]]
| [[Warsaw]] || [[Warsaw Metro]] ||
|-
| [[Rail transport in Romania|Romania]]
| [[Bucharest]] || [[Bucharest Metro]] ||
|-
| [[Rail transport in Singapore|Singapore]]
| [[Singapore]]
| [[Mass Rapid Transit (Singapore)|Mass Rapid Transit]]
| [[North–South MRT line|North–South]], [[East–West MRT line|East–West]], [[Circle MRT line|Circle]] and [[Thomson–East Coast MRT line|Thomson-East Coast]] lines operated by [[SMRT Trains]]<br />[[Downtown MRT line|Downtown line]] operated by [[SBS Transit]]
|-
| rowspan="3" | [[Rail transport in Taiwan|Republic of China (Taiwan)]]
| [[Kaohsiung]] || [[Kaohsiung Metro]] ||
|-
| [[Taipei]] || [[Taipei Metro]] ||
|-
| [[Taoyuan County|Taoyuan]]–[[Taipei]]
| [[Taoyuan Metro]] ||
|-
| rowspan="3" | [[Railway electrification in Turkey|Turkey]]
| [[Ankara]] || [[Ankara Metro]] ||
|-
| [[Istanbul]] || [[Istanbul Metro]]
| Lines [[M2 (Istanbul Metro)|M2]] and [[M6 (Istanbul Metro)|M6]] only
|-
| [[İzmir]] || [[İzmir Metro]] ||
|-
| [[Railway electrification in Great Britain|United Kingdom]]
| [[London]] || [[Docklands Light Railway]] ||
|-
| [[Railroad electrification in the United States|United States]]
| [[New York City]] || [[Metro-North Railroad]] ||
|}

===== Side contact =====
{| class="wikitable" style=width:100%
|-
! style="width:21%" | Country
! style="width:20%" | Location
! style="width:25%" | Name of system
! style="width:34%" | Notes
|-
| [[Rail transport in Canada|Canada]]
| [[Montreal]] || [[Montreal Metro]]
| ([[guide bar]]s, see [[#DC, four-rail|DC, four-rail]] below)
|-
| [[Rail transport in China|China]]
| Shanghai || [[Shanghai Metro]] – [[Pujiang line]]
| Central guide rail for rubber-tyred Bombardier Innovia APM 300
|-
| [[Rail transport in Chile|Chile]]
| [[Santiago]] || [[Santiago Metro]] ||
|-
| rowspan="6" | [[Railway electrification in France|France]]
| [[Paris]] || [[Paris Métro]] ([[Rubber tired metro|Rubber tired]])
| rowspan="6" | Positive (and sometimes negative) polarity on [[guide bar]]s. See [[#DC, four-rail|DC, four-rail]] below.
|-
| [[Lyon]] || [[Lyon Métro]]
|-
| [[Marseille]] || [[Marseille Métro]]
|-
| [[Lille]] || [[Lille Métro]]
|-
| [[Rennes]] || [[Rennes Métro]]
|-
| [[Toulouse]] || [[Toulouse Métro]]
|-
| [[Rail transport in Hong Kong|Hong Kong]]
| [[Hong Kong]]
| [[Hong Kong International Airport Automated People Mover|Hong Kong International Airport<br />Automated People Mover (APM)]]
| Mitsubishi "[[Crystal Mover]]" system using two power rails (positive and negative) with side collection.
|-
| rowspan="3" | [[Rail transport in Indonesia|Indonesia]]
| [[Palembang]]
| [[Palembang Light Rail Transit]]
| rowspan="3" | [[Palembang Light Rail Transit]] and [[Greater Jakarta LRT|Greater Jakarta Light Rail Transit]] are operated by [[Kereta Api Indonesia]]. [[Jakarta LRT|Jakarta Light Rail Transit]] is operated by Jakarta Propertindo (Jakpro).
|-
| rowspan="2" | [[Jakarta]]
| [[Jakarta LRT|Jakarta Light Rail Transit]]
|-
| [[Greater Jakarta LRT|Greater Jakarta Light Rail Transit]]
|-
| [[Railway electrification in Japan|Japan]]
| [[Sapporo, Hokkaido]]
| [[Sapporo Municipal Subway]] [[Namboku Line (Sapporo)|Namboku Line]] ||
|-
| rowspan="2" | [[Rail transport in Singapore|Singapore]]
| [[Singapore]]
| [[Light Rail Transit (Singapore)|Light Rail Transit]]
| [[Sengkang LRT line|Sengkang]] and [[Punggol LRT line|Punggol]] lines operated by [[SBS Transit]]
|-
| [[Singapore]]
| [[Sentosa Express]]
| [[Sentosa Express]] operated by [[Sentosa Development Corporation|SDC]]
|-
| [[Railway electrification in Malaysia|Malaysia]]
| [[Klang Valley]]
| [[Klang Valley Integrated Transit System]] LRT [[Kelana Jaya line]]
| [[Innovia Metro]] system using two power rails (positive and negative) with side collection.<!--the reaction plate for linear motor is not technically counted as a rail-->
|-
| [[Railroad electrification in the United States|United States]]
| [[Las Vegas, Nevada|Las Vegas]]
| [[Las Vegas Monorail]] ||
|}

===== Top contact =====
{| class="wikitable" style=width:100%
|-
! style="width:21%" | Country
! style="width:20%" | Location
! style="width:25%" | Name of system
! style="width:34%" | Notes
|-
| [[Rail transport in Canada|Canada]]
| [[Vancouver]] || [[Vancouver SkyTrain]]
| [[Canada Line]] only
|-
| rowspan="2" | [[Rail transport in China|China]]
| [[Beijing]] || [[Beijing Subway]]
| Capital Airport Line use bottom contact 
|-
| [[Tianjin]] || [[Tianjin Metro]]
| Line 1 only
|-
| [[Railway electrification in France|France]]
| [[Paris]] || [[Paris Métro]] ([[Metro (rapid transit)|Conventional metro]]) ||
|-
| [[Rail transport in Germany|Germany]]
| [[Berlin]] || [[Berlin U-Bahn]]
| Lines from U1 to U4 (small profile)
|-
| [[Rail transport in Greece|Greece]]
| [[Athens]] || [[Athens Metro]]
| Line 1 was 600 V before 1985.
|-
| [[Rail transport in Hungary|Hungary]]
| [[Budapest]] || [[Budapest Metro]]
| Except line M1, which is 600 V DC with overhead lines.
|-
| [[Central Organisation for Railway Electrification|India]]
| [[Kolkata]] || [[Kolkata Metro]] || Only Blue Line ||
|-
| rowspan="4" | [[Railway electrification in Japan|Japan]]
| [[Osaka, Osaka]] || [[Osaka Metro]]
| Except the [[Sakaisuji Line]], [[Nagahori Tsurumi-ryokuchi Line]], and the [[Imazatosuji Line]], which are 1,500 V DC with overhead lines.
|-
| [[Suita, Osaka]]<br />[[Toyonaka, Osaka]]
| [[Kita-Osaka Kyuko Railway]] ||
|-
| [[Higashiosaka, Osaka]]<br />[[Ikoma, Nara]]<br />[[Nara, Nara]]
| [[Kintetsu Railway|Kintetsu]] [[Keihanna Line]] ||
|-
| [[Yokohama, Kanagawa]]
| [[Yokohama Municipal Subway]]
| [[Blue Line (Yokohama)|Blue Line]] (Line 1 and Line 3) only
|-
| [[Rail transport in North Korea|North Korea]]
| [[Pyongyang]]
| [[Pyongyang Metro]]
| based on fleet of cars from Beijing and Germany
|-
| [[Rail transport in South Korea|South Korea]]
| [[Yongin]] || [[Everline]] ||
|-
| [[Rail transport in Portugal|Portugal]]
| [[Lisbon]] || [[Lisbon Metro]] ||
|-
| [[Rail transport in Sweden|Sweden]]
| [[Stockholm]] || [[Stockholm Metro]]
| Nominal voltage 650 V, subway 3 (blue line) 750 V. Subway 1 and 2 will change in the long term to 750 V.
|-
| rowspan="5" | [[Railway electrification in Great Britain|United Kingdom]]
| [[Liverpool]] || [[Merseyrail]] ||
|-
| [[London]] || [[Northern City Line]]
| access to City (Moorgate)
|-
| [[London]]
| Suburban electrification of the [[London, Midland & Scottish Railway|LNWR Suburban Network]]
| formerly four-rail out of [[Euston railway station|Euston]] and [[Broad Street railway station (London)|Broad Street]], curtailed, upgraded and standardised
|-
| Southern England
| [[Southern Region of British Railways]] and successors
| 660 V system upgraded and expanded
|-
| London
| [[Waterloo and City line]]
| Upgraded by British Rail to 750V prior to sale to London Underground
|-
| rowspan="9" | [[Railroad electrification in the United States|United States]]
| [[Atlanta]] || [[MARTA]] ||
|-
| [[Los Angeles]] || [[Los Angeles Metro Rail]]
| [[B Line (Los Angeles Metro)|B]] and [[D Line (Los Angeles Metro)|D]] Lines
|-
| [[Miami]] || [[Metrorail (Miami-Dade County)|Metrorail]] ||
|-
| [[New York City]] and [[Long Island]]<br />[[East River Tunnels]] shared with [[Amtrak]]
| [[Long Island Rail Road]]
| [[Central Branch (LIRR)|Central]], [[Greenport Branch|Greenport]], and [[Oyster Bay Branch|Oyster Bay]] branches not electrified; [[Montauk Branch]] not electrified east of [[Babylon station|Babylon]]; [[Port Jefferson Branch]] not electrified east of [[Huntington (LIRR station)|Huntington]]
|-
| [[Philadelphia]] || [[PATCO Speedline]] ||
|-
| [[Puerto Rico]] || [[Tren Urbano]] ||
|-
| [[Washington, D.C.]] || [[Washington Metro]] ||
|-
| within the [[North River Tunnels|Hudson]] and [[East River Tunnels]] as well as under [[Manhattan]]<br />[[Northeast Corridor]]
| [[Amtrak]] ||
|-
| within the [[North River Tunnels|Hudson Tunnel]] into [[Manhattan]]
| [[Northeast Corridor Line|New Jersey Transit]] ||
|}

===== Mixed =====
{| class="wikitable"
|-
! Country !! Location !! Name of system !! Notes
|-
| [[Rail transport in China|China]]
| [[Tianjin]] || [[Tianjin Metro]]
| Top contact in Line 1, bottom contact in Lines 2 and 3
|}

====1,200 V DC conductor====
All systems are third rail unless stated otherwise.
{| class="wikitable" style="width:100%"
|-
! Type !! Country !! Location !! Name of system !! Notes
|-
| Side contact
| [[Rail transport in Germany|Germany]]
| [[Hamburg]]
| [[Hamburg S-Bahn]]
| {{15 kV AC}} with overhead line in part of network.
|- style="background:#fee"
| Side contact
| [[Railway electrification in Great Britain|United Kingdom]]
| [[Greater Manchester]] 
| [[Bury Line]]
| Converted to 750 V DC overhead in 1991 for operation by the [[Manchester Metrolink]] light rail system 
|- style="background:#fee"
| Bottom contact
| [[Railroad electrification in the United States|United States]]
| [[California]]
| [[Central California Traction Company]]
| 1908–1946<ref name=Hilton-Due>{{Hilton-Interurban|pp=57–58}}</ref>
|}

====1,500 V DC conductor====
All systems are third rail unless stated otherwise.
{| class="wikitable" style="width:100%"
|-
! Type !! Country !! Location !! Name of system !! Notes
|-
| rowspan="2" | Bottom contact
| rowspan="3" | [[Railway electrification in France|France]]
| [[Paris]]
| [[Paris Métro Line 18]]
| Currently under construction
|-
| [[Toulouse]]
| {{Interlanguage link|Line C (Toulouse Metro)|fr|Ligne C du métro de Toulouse}}
| Currently under construction
|- style="background:#fee"
| Side contact
| Chambéry – Modane
| [[Culoz–Modane railway]]
| used between 1925 and 1976, today overhead wire
|-
| rowspan="8" | Bottom contact
| rowspan="8" | [[Rail transport in China|China]]
| [[Beijing]] || [[Beijing Subway]]
| [[Line 7 (Beijing Subway)|Line 7]] only
|-
| [[Guangzhou]] || [[Guangzhou Metro]]
| Lines [[Line 4 (Guangzhou Metro)|4]], [[Line 5 (Guangzhou Metro)|5]], [[Line 6 (Guangzhou Metro)|6]], [[Line 14 (Guangzhou Metro)|14]] and [[Line 21 (Guangzhou Metro)|21]] only. Overhead wires in depots; all trains are equipped with pantographs
|-
| [[Kunming]] || [[Kunming Metro]]
| Line 4 only
|-
| [[Qingdao]] || [[Qingdao Metro]]
| 
|-
| [[Shanghai]] || [[Shanghai Metro]]
| Lines [[Line 16 (Shanghai Metro)|16]] and [[Line 17 (Shanghai Metro)|17]] only. Overhead wires in depot of Line 16, all trains on Line 16 have pantographs for depot use.
|-
| [[Shenzhen]] || [[Shenzhen Metro]]
| Lines [[Line 3 (Shenzhen Metro)|3]] and [[Line 6 (Shenzhen Metro)|6]] only. Overhead wires in depot of Line 6, all trains on Line 6 have pantographs for depot use.
|-
| [[Wuhan]] || [[Wuhan Metro]]
| Lines 7, 8, 11 and Yangluo Line only
|-
| [[Wuxi]] || [[Wuxi Metro]] ||
|}

==Systems using non-standard voltages==
===Overhead systems===
====DC voltage====
{| class="wikitable"
|-
! style="width:5%" | Voltage
! style="width:10%" | Country
! style="width:20%" | Location
! style="width:30%" | Name of system
! style="width:35%" | Notes
|-
| 120 || [[Railway electrification in Great Britain|United Kingdom]]
| Seaton, Devon
| [[Seaton Tramway]]
| Half scale trams. Operated 1969-now. Substations have battery banks for back up.
|- style="background:#fee"
| 250 || [[Railroad electrification in the United States|United States]]
| Chicago
| [[Chicago Tunnel Company]]
| operated 1906–1959
|- style="background:#fee"
| 370 || [[Railroad electrification in the United States|United States]]
| [[Connecticut]]
| [[Norwich and Westerly Railway]]
| operated 1906–1922<ref name=cummings>{{cite book |author1=Cummings, O.R.  |author2=Munger, Charles F.  |name-list-style=amp |title=The Shore Line Electric Railway Company: Predecessor Companies |date=August 1961 |publisher=Connecticut Valley Chapter of the National Railway Historical Society |editor=Borrup, Roger |location=Warehouse Point, CT |volume=13|issue=2 }}</ref>
|-
| 525 || [[Rail transport in Switzerland|Switzerland]]
| Lauterbrunnen
| [[Bergbahn Lauterbrunnen-Mürren]] ||
|-
| rowspan="9" | 550
| [[Rail transport in Hong Kong|Hong Kong]]
| [[Hong Kong Island]]
| [[Hong Kong Tramways]] ||
|-
| rowspan="2" |[[Rail transport in the Isle of Man|Isle of Man]]
|  rowspan="2" |[[Isle of Man]]
| [[Manx Electric Railway]]
| 
|-
|[[Snaefell Mountain Railway]]
|The third rail is for the [[Fell mountain railway system|Fell Brake]] and doesn't carry any power
|-
| [[Central Organisation for Railway Electrification|India]]
| [[Kolkata]]
| [[Trams in Kolkata]]
|
|- style="background:#fee"
| rowspan="5" | [[Railroad electrification in the United States|United States]]
| [[Bakersfield, California]]
| [[Bakersfield and Kern Electric Railway]]
| operated 1888–1942
|- style="background:#fee"
| [[Fresno, California]]
| [[Fresno Traction Company]]
| operated 1903–1939
|- style="background:#fee"
| [[Monterey, California]]
| [[Monterey and Pacific Grove Railway]]
| operated 1905–1923
|- style="background:#fee"
| [[Phoenix, Arizona]]
| [[Phoenix Street Railway]]
| operated 1888–1948<ref>{{Cite book |title=McGraw Electric Railway List August, 1918 |publisher=Trade Investigation and Directory Department of the [[Electric Railway Journal]]|year=1918}}</ref>
|- style="background:#fee"
| [[Reno, Nevada]]
| Reno Traction Company
| operated 1904–1927, see [[Streetcars in Reno]]
|- style="background:#fee"
| 575 
| [[Railroad electrification in the United States|United States]]
| [[Birmingham, Alabama]]
| [[Birmingham Railway, Light and Power Company]]
| {{sfn|McGraw-Hill|1920|p=5}}
|-
| rowspan="4" | 650
| rowspan="3" | [[Railroad electrification in the United States|United States]]
| [[Buffalo, New York]] || [[Buffalo Metro Rail]] ||
|-
| [[El Paso, Texas]] || [[El Paso Streetcar]] ||
|-
| [[Pittsburgh]] || [[Pittsburgh Light Rail]] ||
|-
| [[Rail transport in Switzerland|Switzerland]]
| [[Basel]] || [[Trams in Basel|Basel Trams (BVB/BLT)]] ||
|-
| 660 || [[Rail transport in Poland|Poland]]
| [[Metropolis GZM]]
| [[Silesian Interurbans]] ||
|-
| 700 || [[Rail transport in Switzerland|Switzerland]]
| [[Bex]] – [[Col de Bretaye]], [[Vaud]]
| [[Chemin de fer Bex-Villars-Bretaye]] ||
|- style="background:#fee"
| 730 || [[Railroad electrification in the United States|United States]]
| [[Pennsylvania]]
| Philadelphia Suburban Transportation Company
| purchased by [[Philadelphia and Western Railroad]] in 1953 and converted to 600 VDC<ref>{{cite book |last1=Hilton |first1=George Woodman |last2=Due |first2=John Fitzgerald |title=The Electric Interurban Railways in America |date=2000 |publisher=Stanford University Press |isbn=9780804740142 |page=299}}</ref>
|- style="background:#fee"
| 800 || [[Rail transport in Poland|Poland]]
| [[Tricity, Poland|Tricity]]
| [[Szybka Kolej Miejska (Tricity)]]
| Operated 1951–1976. Converted to 3,000 V DC in 1976.
|-
| 825 || [[Railroad electrification in the United States|United States]]
| [[Portland, Oregon]]
| [[MAX Light Rail|MAX]], [[TriMet]]
| Light rail sections west of NE 9th Avenue & Holladay Street utilize a 750 V system
|-
| 850 || rowspan="4" | [[Rail transport in Switzerland|Switzerland]]
| [[Capolago]] – [[Monte Generoso]], [[Ticino]]
| [[Ferrovia Monte Generoso|Ferrovia Monte Generoso (MG)]] ||
|-
| rowspan="3" | 900 || Fribourg
| [[Chemins de fer Fribourgeois Gruyère-Fribourg-Morat|Gruyere – Fribourg – Morat]] ||
|-
| rowspan="2" | Vaud
| [[Montreux–Lenk im Simmental line]] ||
|-
| [[Vevey–Les Pléiades railway line|Vevey–Les Pléiades]] ||
|-
| rowspan="2" | 1,000
| [[Rail transport in Italy|Italy]]<br />[[Rail transport in Switzerland|Switzerland]]
| [[St Moritz]], [[canton of Graubünden]] – [[Tirano]], [[Lombardy]]
| [[RhB|Rhätische Bahn (RhB)]]
| [[Bernina railway line|Bernina line]] only; remainder of system electrified at 11 kV AC, 16 2⁄3&nbsp;Hz. The Bernina line is an international line linking Switzerland (St. Moritz) with Italy (Tirano)
|-
| [[Rail transport in Hungary|Hungary]]
| Budapest
| [[BHÉV|Budapest Commuter Rail and Rapid Transit (BHÉV)]]
| <ref>{{cite web|url=http://www.chiark.greenend.org.uk/~mwaller/rail/countries/hu_tech.html|title=Railway Technical Info – Hungary|website=www.chiark.greenend.org.uk|access-date=10 April 2018}}</ref>
|-
| 1,100 || [[Rail transport in Argentina|Argentina]]
| [[Buenos Aires]]
| [[Buenos Aires Metro|Buenos Aires Metro (Subterráneos de Buenos Aires)]]
| Only Line A (converted to 1,500&nbsp;V&nbsp;DC with ''[[La Brugeoise cars (Buenos Aires Metro)|La Brugeoise]]'' trains replaced by new rolling stock in 2013)
|-
| 1,250 || [[Rail transport in Switzerland|Switzerland]]
| [[Canton of Bern]]
| [[Regionalverkehr Bern-Solothurn|Regionalverkehr Bern-Solothurn (RBS)]]
| All lines except tram line 6 between [[Bern]] and [[Worb]], which is electrified at 600 V DC{{sfnp|Schweers+Wall|2012|p=66}}
|-
| rowspan="2" | 1,350
| [[Rail transport in Italy|Italy]]<br />[[Rail transport in Switzerland|Switzerland]]
| [[Domodossola]], [[Piedmont]] – [[Locarno]], [[canton of Ticino]]
| [[Domodossola–Locarno railway line]] ([[Regional Bus and Rail Company of Ticino|FART]] / {{ill|Società Subalpina Imprese Ferroviarie|de|Società subalpina di imprese ferroviarie|lt=SSIF}})
| International railway between Italy (Domodossola) and Switzerland (Locarno)
|-
| [[Rail transport in Switzerland|Switzerland]]
| [[Lugano]] – [[Ponte Tresa]], [[canton of Ticino]]
| [[Ferrovia Lugano–Ponte Tresa|Ferrovia Lugano–Ponte Tresa (FLP)]] ||
|-
| rowspan="2" | 1,650
| [[Rail transport in Denmark|Denmark]]
| [[Copenhagen]]
| [[S-train|Copenhagen S-train]]
| Suburban rail network in Copenhagen
|-
| [[Rail transport in Italy|Italy]]
| [[Rome]]
| [[Rome–Giardinetti railway]]
| Isolated [[Italian metre gauge]] line.
|-
| rowspan="5" | 2,400
| [[Rail transport in Germany|Germany]]
| Lausitzer ||
| work line of the [[Lausitzer Braunkohle]] coal company
|-
| rowspan="2" | [[Rail transport in Poland|Poland]]
| [[Konin]]
| [[Konin Coal Mine]]<ref name="locomotives.com.pl">{{Cite web|url= http://www.locomotives.com.pl/Electric%20Locomotives/EL2.htm |title=EL2}}</ref>
|
|- style="background:#fee"
| [[Turek, Poland|Turek]]
| [[Adamów Coal Mine|PAK KWB ADAMÓW]]<ref name="locomotives.com.pl"/>
| mine closed in February 2021, the railway will be dismantled<ref>{{cite web |title=Na odkrywce Adamów wydobyto ostatnią tonę węgla. Kopalnia zakończyła definitywnie działalność. |url=https://www.turek.net.pl/miasto/30397-na-odkrywce-adamow-wydobyto-ostatnia-tone-wegla-kopalnia-zakonczyla-definitywnie |website=Turek.net.pl |language=pl |trans-title=Last tonne of coal from Adamów pit. Mine definitely closed. |date=19 February 2021}}</ref>
|-
| [[Railway electrification in France|France]]
| [[Grenoble]]
| [[Chemin de fer de La Mure]]
| −1,200&nbsp;V, +1,200&nbsp;V two wire system from 1903 to 1950. 2,400&nbsp;V since 1950.{{cn|date=December 2025}}
|- style="background:#fee"
| [[Railroad electrification in the United States|United States]]
| [[Montana]]
| [[Butte, Anaconda and Pacific Railway]]
| electrified 1913–1967, dismantled in favor of diesel power
|- style="background:#fee"
| 3,500
| [[Railway electrification in Great Britain|United Kingdom]]
| Manchester
| [[Bury to Holcombe Brook Line|Bury – Holcombe Brook]]
| operated 1913–1918
|- style="background:#fee"
| 6,000
| [[Railway electrification in the Soviet Union|Russia]] ||||
| experiments in the late 1970s (3,000 V DC lines)
|}

====AC voltage====
{| class="wikitable"
|-
! style="width:5%" | Voltage
! style="width:5%" | Frequency
! style="width:10%"| Country
! style="width:20%"| Location
! style="width:30%"| Name of system
! style="width:30%"| Notes
|- style="background:#fee"
| rowspan="3" | 3,300 || 15&nbsp;Hz
| [[Railroad electrification in the United States|United States]]
| [[Tulare County, California]]
| [[Visalia Electric Railroad]]
| 1904–1992
|- style="background:#fee"
| rowspan="2" | 25&nbsp;Hz
| rowspan="2" | [[Railroad electrification in the United States|United States]]
| [[Napa County|Napa]] and [[Solano County|Solano]] Counties, [[California]]
| [[San Francisco, Napa and Calistoga Railway]]
| 1905–1937
|- style="background:#fee"
| [[Indiana]]
| [[Indianapolis and Cincinnati Traction Company]]<ref>{{cite magazine |title=Economics of I. & C. Re-equipment |url=https://libraryarchives.metro.net/DPGTL/ERJ/erj-electric-railway-journal/1923-erj-volume-61-no-22-june-02.pdf |access-date=29 August 2025 |magazine=[[Electric Railway Journal]] |volume=61 |issue=22 |date=June 2, 1923 |pages=913–917}}</ref>
| 1905–1924
|- style="background:#fee"
| 5,500 || {{frac|16|2|3}} Hz
| [[Rail transport in Germany|Germany]]
| [[Murnau am Staffelsee|Murnau]]
| [[Ammergau Railway]] 
| 1905–1955, after 1955 15 kV, 16.7&nbsp;Hz
|- style="background:#fee"
| rowspan="2" | 6,250 || rowspan="2" | 50&nbsp;Hz
| [[Railway electrification in Great Britain|United Kingdom]]
| [[London]], [[Essex]], [[Hertfordshire|Herts]]
| Great Eastern suburban lines
| Great Eastern suburban lines from Liverpool Street [[London]], 1950s–c1980 (converted to 25&nbsp;kV)
|- style="background:#fee"
| [[Railway electrification in Great Britain|United Kingdom]]
| [[Glasgow]]
| Glasgow suburban lines
| Sections of the [[North Clyde Line]] and [[Cathcart Circle Line]] from 1960-1970s
|- style="background:#fee"
| 6,300 || 25&nbsp;Hz
| [[Rail transport in Germany|Germany]]
| [[Hamburg]] || [[Hamburg S-Bahn]]
| Operated with AC 1907–1955. Used both AC and DC (1,200 V 3rd rail) 1940–1955.
|-
| 6,500 || rowspan="3" | 25&nbsp;Hz
| [[Rail transport in Austria|Austria]]
| [[Sankt Pölten]] || [[Mariazellerbahn]] ||
|-
| rowspan="2" | 6,600 || [[Railway electrification in Norway|Norway]]
| [[Orkland Municipality|Orkland]]
| [[Thamshavnbanen]] ||
|- style="background:#fee"
| rowspan="2" | [[Railway electrification in Great Britain|United Kingdom]]
| rowspan="2" | [[Lancaster, Lancashire|Lancaster]] to [[Heysham Port railway station|Heysham]]
| rowspan="2" | [[Morecambe branch line]]
| 1908–1951<br />Converted for testing of 50&nbsp;Hz electrification in 1952
|-
| rowspan="2" | 6,600
| rowspan="2" | 50&nbsp;Hz
| style="background:#fee" | 1952-1966
|-
| [[Rail transport in Germany|Germany]]
| [[Cologne Lowland]]
| [[:de:Hambachbahn|Hambachbahn]] and [[:de:Nord-Süd-Bahn (Garzweiler)|Nord-Süd-Bahn]]
| transports [[lignite]] from [[open-pit mine]]s to powerplants. Owned by [[RWE]].
|- style="background:#fee"
| 6,600 || 
| [[Railroad electrification in the United States|United States]]
| [[Northern Indiana]]
| [[Chicago, Lake Shore and South Bend Railway]]
| 1908–1925<br />Converted to 1,500&nbsp;V&nbsp;DC
|- style="background:#fee"
| 6,700 || 25&nbsp;Hz
| [[Railway electrification in Great Britain|United Kingdom]]
| [[London Victoria railway station|London Victoria]] to [[London Bridge railway station|London Bridge]]
| [[South London line]]
| 1909–1928<br />Converted to 660&nbsp;V (later 750&nbsp;V) DC third-rail supply
<!--see: Garry Keenor CEng MIET, 'Overhead Line Electrification for Railways', 5th Edition, 2018, pp. 20, 22-->
|- style="background:#fee"
| 8 kV || rowspan="2" | 25&nbsp;Hz
| [[Rail transport in Germany|Germany]]
| [[Karlsruhe]] || [[Alb Valley Railway]]
| 1911–1966, today using 750 V DC
|- style="background:#fee"
| 10 kV
| [[Rail transport in the Netherlands|Netherlands]]
| [[The Hague]] – [[Rotterdam]]
| [[Hofpleinlijn]]
| from 1908, in 1926 converted to 1,500 DC, In 2006 replaced by 750 V DC light rail
|-
| rowspan="3" | 10 kV || rowspan="3" | 50&nbsp;Hz
| [[Railway electrification in the Soviet Union|Russia]]
| rowspan="3" | industrial railways at quarries
| [[Russian Railways]]
| rowspan="3" | operated from 1950s at coal and ore quarries
|-
| [[Rail transport in Ukraine|Ukraine]]
| [[Ukrainian Railways]]
|-
| [[Rail transport in Kazakhstan|Kazakhstan]]
| some private industrial railways in [[Kazakhstan]]
|-
| rowspan="3" | 11 kV || rowspan="2" | {{frac|16|2|3}} Hz
| rowspan="2" | [[Rail transport in Switzerland|Switzerland]]
| [[Graubünden]] || [[Rhätische Bahn|Rhätische Bahn (RhB)]]
| Except the [[Bernina railway line|Bernina line]], which is electrified at 1,000 V DC
|-
| || [[Matterhorn-Gotthard-Bahn|Matterhorn-Gotthard-Bahn (MGB)]]
| formerly [[Furka Oberalp Bahn|Furka Oberalp Bahn (FO)]] and [[BVZ Zermatt-Bahn]]
|-
| 50&nbsp;Hz
| [[Railway electrification in France|France]]
| [[Saint-Gervais-les-Bains]]
| [[Mont Blanc Tramway]] ||
|- style="background:#fee"
| rowspan="3" | 11 kV || rowspan="3" | 25&nbsp;Hz
| [[Railroad electrification in the United States|United States]] ||
| [[Pennsylvania Railroad]]<br />Etc.,
| All lines now {{nowrap|12 kV 25 Hz}} or {{nowrap|12.5 kV 60 Hz}}<br />See [[Railroad electrification in the United States]]
|- style="background:#fee"
| [[Railroad electrification in the United States|United States]]
| [[Washington (state)|Washington]]
| [[Cascade Tunnel]]
| Converted from three-phase {{nowrap|6600 V 25 Hz}} in 1927, dismantled 1956
|- style="background:#fee"
| [[Railroad electrification in the United States|United States]]
| [[Colorado]]
| [[Denver and Intermountain Railroad]]
| dismantled {{circa|1953}}<ref>{{cite web |title=National Register of Historic Places Registration Form |url=https://www.nps.gov/nr/feature/weekly_features/2012/den-imt-rr_interurbanno25.pdf |archive-url=https://web.archive.org/web/20170217135935/https://www.nps.gov/nr/feature/weekly_features/2012/den-imt-rr_interurbanno25.pdf |url-status=dead |archive-date=February 17, 2017 |publisher=[[National Park Service]] |access-date=22 September 2020}}</ref>
|- style="background:#fee"
| 12 kV || {{frac|16|2|3}} Hz
| [[Railway electrification in France|France]]
| lines in [[Pyrenees]]
| [[Chemin de fer du Midi]]
| most converted to 1,500&nbsp;V 1922–23; Villefranche-Perpignan diesel 1971, then 1,500&nbsp;V 1984
|-
| rowspan="3" | 12 kV || rowspan="3" | 25&nbsp;Hz
| rowspan="3" | [[Railroad electrification in the United States|United States]]
| [[Washington, DC]] – [[New York City]]
| [[Northeast Corridor|Northeast Corridor (NEC)]], [[Amtrak]]
| 11 kV until 1978
|-
| [[Harrisburg, Pennsylvania]] to [[Philadelphia]]
| [[Keystone Corridor]], [[Amtrak]]
| 11 kV until 1978
|-
| [[Philadelphia]]
| [[SEPTA]]
| [[SEPTA Regional Rail|Regional Rail]] system only; 11&nbsp;kV until 1978
|- style="background:#fee"
| 12 kV || 25&nbsp;Hz
| [[Railroad electrification in the United States|United States]]
| [[Rahway (NJT station)|Rahway]] to [[Aberdeen-Matawan (NJT station)|Aberdeen-Matawan]], [[New Jersey]]
| [[North Jersey Coast Line]], [[New Jersey Transit]]
| 1978–2002 (11 kV until 1978). Converted to {{nowrap|25 kV 60 Hz}}
|-
| 12.5 kV || 60&nbsp;Hz
| [[Railroad electrification in the United States|United States]]
| [[Pelham (Metro-North station)|Pelham, NY]]-[[New Haven (Metro-North station)|New Haven, CT]]
| [[New Haven Line]], [[Metro-North Railroad]], [[Amtrak]]
| 11 kV until 1985
|- style="background:#fee"
| 16 kV || rowspan="3" | 50&nbsp;Hz
| [[Rail transport in Hungary|Hungary]]
| Budapest–Hegyeshalom railway
| [[Budapest Keleti railway station|Budapest]] to [[Hegyeshalom railway station|Hegyeshalom]]
| [[Kálmán Kandó#Hungary|Kandó system]] 1931–1972, converted to {{nowrap|25 kV 50 Hz}}
<!-- see http://www2.chem.elte.hu/gigant_club/mav/electric_story.html-->
|- style="background:#fee"
| rowspan="2" | 20 kV
| [[Rail transport in Germany|Germany]]
| [[Freiburg im Breisgau|Freiburg]]
| [[Höllentalbahn (Black Forest)|Höllentalbahn]]
| Operated 1933–1960. Converted to 15 kV {{frac|16|2|3}}&nbsp;Hz.
|- style="background:#fee"
| [[Railway electrification in France|France]]
| [[Aix-les-Bains]] – [[La Roche-sur-Foron]]
| [[SNCF|Société Nationale des Chemins de fer (SNCF)]]
| Operated 1950–1953. Converted to 25 kV 50&nbsp;Hz.
|-
| rowspan="2" | 20 kV || 50 Hz
| rowspan="2" | [[Railway electrification in Japan|Japan]]
| most electrified [[Japan Railways|JR]]/the [[Public–private partnership#Japan|third sector]] lines in [[Hokkaidō]] and [[Tohoku region|Tōhoku]]
| [[East Japan Railway Company|JR East]], [[Hokkaido Railway Company|JR Hokkaidō]], and others ||
|-
| 60 Hz
| most electrified [[Japan Railways|JR]]/the [[Public–private partnership#Japan|third sector]] lines in [[Kyūshū]] and Hokuriku region
| [[Kyushu Railway Company|JR Kyūshū]] and others ||
|-
| rowspan="4" | 50 kV || 50 Hz
| [[Rail transport in South Africa|South Africa]]
| [[Northern Cape]], [[Western Cape]] || [[Sishen–Saldanha railway line]]
| opened in 1976 and hauls iron ore
|- style="background:#fee"
| rowspan="2" | 60 Hz
| [[Rail transport in Canada|Canada]]
| [[British Columbia]]
| [[Tumbler Ridge Subdivision]] of [[BC Rail]] (Now [[Canadian National Railway]])
| Opened in 1983 to serve a coal mine in the northern Rocky Mountains. No longer in use.
|- style="background:#fee"
| [[Railroad electrification in the United States|United States]]
| [[Arizona]] || [[Black Mesa and Lake Powell Railroad]]
| First line to use 50 kV electrification when it opened in 1973. This was an isolated coal-hauling short line; no longer in use.
|-
| 60 Hz
| [[Railroad electrification in the United States|United States]]
| [[Utah]] || [[Deseret Power Railroad]]
| Formerly Deseret Western Railway. This is an isolated coal-hauling short line.
|}

====Three-phase AC voltage====
{{main|Three-phase AC railway electrification}}

===== Two wires =====
{| class="wikitable"
! Voltage
! Frequency<br>& phases
! Country
! Location
! Name of system
! Notes
|-
| 725 || 50 Hz, [[Three-phase electric power|3φ]]
| rowspan="2" | [[Rail transport in Switzerland|Switzerland]]
| [[Zermatt]] – [[Gornergrat]], [[canton of Valais]]
| [[Gornergratbahn]]
| 
|- style="background:#fee"
| 750 || 40 Hz, 3φ
| [[Burgdorf, Switzerland|Burgdorf]] – [[Thun]]
| [[:de:Burgdorf-Thun-Bahn|Burgdorf-Thun Bahn]]{{anchor|Burgdorf-Thun Bahn}}
| Operated 1899–1933<br />Converted to 15 kV {{frac|16|2|3}}&nbsp;Hz in 1933
|-
| 900 || 60 Hz, 3φ
| [[Rail transport in Brazil|Brazil]]
| [[Rio de Janeiro]]
| [[Corcovado Rack Railway]] ||
|-
| 1125 || 50 Hz, 3φ
| [[Rail transport in Switzerland|Switzerland]]
| [[Interlaken]]
| [[Jungfraubahn]] ||
|- style="background:#fee"
| rowspan="2" | 3600 || 15 Hz, 3φ
| [[Rail transport in Italy|Italy]]
| [[Northern Italy]]
| [[Valtellina#Industrial|Valtellina]] Electrification
| 1902–1917
|-
| 50 Hz, 3φ
| [[Railway electrification in France|France]]
| [[Saint-Jean-de-Luz]] to [[Larrun]]
| [[Chemin de Fer de la Rhune]] ||
|- style="background:#fee"
| 3600 || 16 Hz, 3φ
| [[Rail transport in Italy|Italy]]<br />[[Rail transport in Switzerland|Switzerland]]
| [[Simplon Tunnel]] ||
| 1906–1930
|- style="background:#fee"
| rowspan="2" | 3600 || rowspan="2" | {{frac|16|2|3}}&nbsp;Hz,&nbsp;3φ
| rowspan="2" | [[Three-phase AC electrification of Ferrovie dello Stato|Italy]] ||||
| Operated 1912–1976 in Upper Italy (more info needed)
|- style="background:#fee"
| [[Porrettana railway]]
| [[Ferrovie dello Stato|FS]]
| 1927–1935
|- style="background:#fee"
| 3600 || {{frac|16|2|3}} Hz, 3φ
| [[Rail transport in Italy|Italy]]
| Trento/Trient – Brenner 
| [[Brenner Railway]]
| 1929–1965
|- style="background:#fee"
| 5200 || 25 Hz, 3φ
| [[Rail transport in Spain|Spain]]
| [[Gérgal]] – [[Santa Fe de Mondújar|Santa Fe]]
| [[C.de H. Sur de España]]
| 1911–1966?
|- style="background:#fee"
| 6600 || 25 Hz, 3φ
| [[Railroad electrification in the United States|United States]]
| [[Cascade Tunnel]], Washington state
| [[Great Northern Railway (U.S.)|Great Northern Railway]]
| 1909–1929
|- style="background:#fee"
| 10 kV || 45 Hz, 3φ
| [[Rail transport in Italy|Italy]]
| [[Rome|Roma]] – [[Sulmona]]
| [[Ferrovie dello Stato|FS]]
| 1929–1944<ref>{{cite journal |last=Cacozza |first=Marco |title=Three-Phase Electrification: An Italian Story |publisher=Today's Railways Europe #248 |date=August 2016}}</ref>
|}

===== Three wires =====
{| class="wikitable"
!Voltage
!Frequency
!Country
!Location
!Name of system
!Notes
|- style="background:#fee"
| 3 kV
| rowspan="2" | 50 Hz
| rowspan="3" | [[Rail transport in Germany|Germany]]
| Kierberg
| [[:de:Zahnradbahn Tagebau Gruhlwerk|Zahnradbahn Tagebau Gruhlwerk]]
| [[Rack railway]] (0.7&nbsp;km)<br />Operated 1927–1949
|- style="background:#fee"
| 10 kV
| [[Lichterfelde (Berlin)|Berlin-Lichterfelde]] ([[:de:Drehstrom-Versuchsstrecke Groß-Lichterfelde–Zehlendorf|de]])
|
| Test track (1.8&nbsp;km)<br />Variable voltage and frequency<br />Trial runs 1898–1901
|- style="background:#fee"
| 14 kV<br />(See notes)
| 38 Hz – 48&nbsp;Hz<br />(See notes)
| [[Zossen]] – [[Marienfelde]] ||
| Test track (23.4&nbsp;km)<br />Trial runs 1901–1904<br />Variable voltage between 10 and 14&nbsp;kV<br>Frequency between 38 and 48&nbsp;Hz
|-
| || 50 Hz
| [[Railway electrification in the Soviet Union|Russia]]
| [[Ship lift of Krasnoyarsk hydroelectric power station|Ship elevator]] of [[Krasnoyarsk Reservoir]]
|
| Length 1.5&nbsp;km, gauge 9000&nbsp;mm
|}
<!--
   ?  V///??Hz Siemens Factory Experiment 1892 (variable V and F)
   200 V///25 Hz Panama Canal 1915
   350 V///40 Hz Lugano Tramway 1895
   460 V///60 Hz Panama Canal Authority circa 1970s
   500 V///??Hz Ganz Factory Experiment 1896
   550 V///40 Hz Gornergratbahn originally 1898
   725 V///50 Hz Gornergratbahn currently  (active)
 1,125 V///50 Hz Matterhorn Rly and Jungfrau Rly (CH)(both active)
 3,300 V///16.7 Hz Simplon Tunnel and swiss links, SBB 1906–1930
 3,000 V///15.8 Hz Valtellina FS 1917–1930
 3,600 V///16.7 Hz Valtellina FS 1930–1953
 3,600 V///16.7 Hz Genoa-Turin, Turin-Frejus Tunnel-Modane(F), and
 other FS lines in Piedmont and Riviera Ligure from 1910 to 1976
 3,600 V///16.7 Hz Trento-Bolzano-Brennero, Bolzano-Merano FS 1929–1965
 3,600 V///16.7 Hz Genoa-Leghorn and Fornovo antenna FS 1926–1948
 3,600 V///16.7 Hz Sondrio-Tirano (Ferrovia Alta Valtellina) 1932–1980
 5,200 V///25 Hz Gergal-SantaFe FC Sur – Spain
 6,600 V///25 Hz Cascade Range (Great Northern) – USA 1909–1927
 7,000 V///50 Hz experimental switchover Turin-Bussoleno FS 1927–1928
-->

===Conductor rail systems (DC voltage)===
Conductor rail systems have been separated into tables based on whether they are top, side or bottom contact.

==== Top contact systems ====
{| class="wikitable" style="width:100%"
|-
! style width=5%  | Voltage
! style width=7%  | Type
! style width=12% | Country
! style width=12% | Location
! style width=16% | Name of system
! style width=48% | Notes
|-
| 50 || See notes
| rowspan="4" | [[Railway electrification in Great Britain|United Kingdom]]
| rowspan="3" | Brighton || rowspan="3" | [[Volk's Electric Railway]]
| Volk's Railway prior to 1884<br />(current fed through running rails)
|-
| 110 || rowspan="2" | [[third rail]]
| Claims to be the world's oldest operational electric railway
|-
| 160 || Volk's Railway between 1884 and 1980s
|-
| 100 || [[Railway electrification system#Fourth rail|fourth&nbsp;rail]]
| Beaulieu || [[National Motor Museum Monorail|Beaulieu Monorail]] ([[National Motor Museum, Beaulieu|National Motor Museum]] – [[Beaulieu Palace House]])
| current fed by 2 contact wires
|-
| 180 || See notes
| [[Rail transport in Germany|Germany]]
| [[Berlin-Lichterfelde]] || Siemens streetcar
| Current fed through the running rails<br />Operated 1881–1891
|-
| 200 || rowspan="9" | third rail
| rowspan="2" | [[Railway electrification in Great Britain|United Kingdom]]
| Southend || [[Southend Pier Railway]]
| Until 1902<ref>{{cite web |title = Southend Pier Railway |url =http://www.greywall.demon.co.uk/rail/spr.html}}</ref>
|-
| rowspan="2" | 250 || [[Hythe, Hampshire]]
| [[Hythe Pier Railway]] ||
|-
| [[Railroad electrification in the United States|United States]]
| [[Chicago, Illinois]] || [[Chicago Tunnel Company]]
| [[Rack railway#Morgan|Morgan Rack]]<br />1904, revenue service 1906–1908
|-
| 300 || [[Rail transport in Georgia|Georgia]]
| [[New Athos Cave Railway]] ||||
|-
| 400 || [[Rail transport in Germany|Germany]]
| [[Berchtesgaden]] || [http://www.salzbergwerk.de/en Berchtesgaden Salt Mine Railway] ||
|-
| 440 || [[Railway electrification in Great Britain|United Kingdom]]
| [[London]] || [[Post Office Railway]]
| Disused by post office since 2003<ref>{{cite web|url=http://www.mailrail.co.uk|title=Unofficial MailRail Website – Home|first=Colin|last=Karslake|website=www.mailrail.co.uk|access-date=10 April 2018}}</ref> Now small section near Mount Pleasant operated as tourist attraction with battery powered stock<ref>{{Cite web|url=https://www.postalmuseum.org/discover/attractions/mail-rail-ride/|title = Mail Rail}}</ref><br />150&nbsp;V was used in station areas to limit train speed
|-
| 550 || [[Rail transport in Argentina|Argentina]]
| [[Buenos Aires]] || [[Buenos Aires Metro|Buenos Aires Metro (Subterráneos de Buenos Aires)]]
| Only Line B
|-
| 625 || rowspan="2" |[[Railroad electrification in the United States|United States]]
| [[New York City]] || [[New York City Subway]] ||
|-
| rowspan="2" | 630 || Philadelphia
| [[SEPTA Metro]] - [[M (SEPTA Metro)|M]]||
|-
| [[Railway electrification system#Fourth rail|fourth rail]]
| rowspan="3" | [[Railway electrification in Great Britain|United Kingdom]]
| rowspan="2" | [[London]] || [[London Underground]]
| Supplied at +420 V and −210&nbsp;V (630&nbsp;V total).
|-
| 750 || See notes
| Euston to [[Watford DC Line]], London underground 
Sub surface lines, metropolitan lines, district and circle lines 
| Third rail with fourth rail bonded to running rail<br />To enable [[London Underground]] trains to operate between [[Queen's Park station (England)|Queen's Park]] and [[Harrow & Wealdstone railway station|Harrow & Wealdstone]]. Similar bonding arrangements are used on the [[North London Line]] between [[Richmond railway station, London|Richmond]] and [[Gunnersbury railway station|Gunnersbury]] and on the [[District Line]] between [[Putney Bridge tube station|Putney Bridge]] and [[Wimbledon railway station|Wimbledon]].
|-
| 660 || rowspan=5 | third rail ||
| [[Southern Railway (England)|Southern Railway]] & [[London & South Western Railway]]
| some areas up to 1939, original standard, mostly upgraded to 750&nbsp;V (except for sections that operate with LUL stock).
|-
| 700 || [[Railroad electrification in the United States|United States]]
| [[Baltimore, Maryland]] || [[Baltimore Metro SubwayLink]] ||
|-
| 800 || [[Rail transport in Germany|Germany]]
| [[Berlin]] || [[Berlin S-Bahn]]
| discontinued, today 750 V
|-
| 825 || [[Rail transport in North Korea|North Korea]]
| [[Pyongyang]] || [[Pyongyang Metro]]
| uses old 750 V [[Berlin U-Bahn]] rolling stock
|-
| 1000 || [[Railroad electrification in the United States|United States]]
| [[San Francisco]] || [[Bay Area Rapid Transit]]
|<ref>{{cite web |url=http://www.bart.gov/about/history/facts |title=BART System Facts |publisher=San Francisco Bay Area Rapid Transit District |access-date=2014-02-05}}</ref>
|}

==== Side contact systems ====
All third rail unless otherwise stated.
{| class="wikitable" style="width:100%"
|-
! style width=5% | Voltage
! style width=12% | Country
! style width=12% | Location
! style width=16% | Name of system
! style width=48% | Notes
|-
| 650 || [[Rail transport in Canada|Canada]]
| Vancouver
| [[SkyTrain (Vancouver)|SkyTrain]]
| [[Expo Line (SkyTrain)|Expo Line]] (1985) and [[Millennium Line]] (2006). [[Linear induction|Linear]] induction.
|-
| 850 || [[Railway electrification in France|France]] || Martigny
| [[Saint-Gervais–Vallorcine railway]] ||
|-
| 1200 || [[Rail transport in Germany|Germany]] || Hamburg
| [[Hamburg S-Bahn]] || Since 1940. Used both third rail DC (1200&nbsp;V) and overhead line&nbsp;AC {{nowrap|(6.3 kV 25 Hz)}} until 1955. Also uses German standard {{nowrap|15 kV AC 16 2/3 Hz}} overhead electrification on the section between Neugraben and Stade on line&nbsp;S3, opened in December 2007.
|}

==== Bottom contact systems ====
All third rail unless otherwise stated.
{| class="wikitable" style="width:auto"
|-
! Voltage !! Country !! Location !! Name of system !! Notes
|- style="background:#fee"
| 550
| [[Railroad electrification in the United States|United States]]
| [[California]]
| [[Central California Traction Company]]
| 1907–1908, raised to 1,200 V<ref name=Hilton-Due />
|-
| rowspan="2" | 700
| rowspan="2" | [[Railroad electrification in the United States|United States]]
| New York
| [[Metro-North Railroad]]
| [[Hudson Line (Metro-North)|Hudson]] and [[Harlem Line]]s, southern part of [[New Haven Line]]. Original [[New York Central Railroad]] electrification scheme to [[Grand Central Terminal]].
|-
| Philadelphia
| [[SEPTA Metro]] – [[L (SEPTA Metro)|L]]
| Originally 600 V, raised to 700 V
|-
| rowspan="12" | 825
| [[Rail transport in Belarus|Belarus]]
| [[Minsk]]
| [[Minsk Metro]]
| [[Post-Soviet states|FSU]] underground system standard,<ref name="FSUundergroundstandard"/> 825V substation output, 750V in rail on average
|-
| [[Rail transport in Bulgaria|Bulgaria]]
| [[Sofia]]
| [[Sofia Metro]]
| Lines 1 and 2
|-
| rowspan="7" | [[Railway electrification in the Soviet Union|Russia]]
| [[Moscow]]
| [[Moscow Metro]]
| rowspan="7" | Nominal voltage: 825 V; allowed range: 550 V – 975 V<ref>{{cite web
|url         = http://static.scbist.com/scb/instr/ptemrf.pdf
|title       = Rules of technical operation of undergrounds of the Russian Federation (''Правила технической эксплуатации метрополитенов Российской Федерации'')
|publisher   = [[w:ru:Международная ассоциация «Метро»|International Metro Association]]
|language    = ru
|access-date = 2017-11-30
|archive-url = https://web.archive.org/web/20131010111939/http://static.scbist.com/scb/instr/ptemrf.pdf
|archive-date= 2013-10-10
}}</ref>
|-
| [[Saint Petersburg]] || [[Saint Petersburg Metro]]
|-
| [[Kazan]] || [[Kazan Metro]]
|-
| [[Nizhny Novgorod]] || [[Nizhny Novgorod Metro]]
|-
| [[Novosibirsk]] || [[Novosibirsk Metro]]
|-
| [[Samara]] || [[Samara Metro]]
|-
| [[Yekaterinburg]] || [[Yekaterinburg Metro]]
|-
| rowspan="3" | [[Rail transport in Ukraine|Ukraine]]
| [[Kyiv]] || [[Kyiv Metro]]
| rowspan="3" | [[Post-Soviet states|FSU]] underground systems share the same standard<ref name="FSUundergroundstandard">{{cite web
|url         = http://wiki.nashtransport.ru/images/1/1b/%D0%9A%D0%BD%D0%B8%D0%B3%D0%B0_%D0%A1%D0%BE%D0%BE%D1%80%D1%83%D0%B6%D0%B5%D0%BD%D0%B8%D1%8F%2C_%D1%83%D1%81%D1%82%D1%80%D0%BE%D0%B9%D1%81%D1%82%D0%B2%D0%B0_%D0%B8_%D0%9F%D0%A1_%D0%BC%D0%B5%D1%82%D1%80%D0%BE%D0%BF%D0%BE%D0%BB%D0%B8%D1%82%D0%B5%D0%BD%D0%B0.djvu
|title       = Structures, devices and rolling stock of underground (''Сооружения, устройства и подвижной состав метрополитена'')
|language    = ru
|access-date = 2017-11-30
|archive-url = https://web.archive.org/web/20170919122238/http://wiki.nashtransport.ru/images/1/1b/%D0%9A%D0%BD%D0%B8%D0%B3%D0%B0_%D0%A1%D0%BE%D0%BE%D1%80%D1%83%D0%B6%D0%B5%D0%BD%D0%B8%D1%8F%2C_%D1%83%D1%81%D1%82%D1%80%D0%BE%D0%B9%D1%81%D1%82%D0%B2%D0%B0_%D0%B8_%D0%9F%D0%A1_%D0%BC%D0%B5%D1%82%D1%80%D0%BE%D0%BF%D0%BE%D0%BB%D0%B8%D1%82%D0%B5%D0%BD%D0%B0.djvu
|archive-date= 2017-09-19
}}</ref>
|-
| [[Dnipro]] || [[Dnipro Metro]]
|-
| [[Kharkiv]] || [[Kharkiv Metro]]
|-
| rowspan="2" | 830
| rowspan="2" | [[Rail transport in Argentina|Argentina]]
| rowspan="2" | [[Buenos Aires]]
| [[Mitre Line]]
| [[Retiro Mitre railway station|Retiro]] – José León Suárez<br />Retiro – Bartolomé Mitre<br />Retiro – [[Tigre, Buenos Aires|Tigre]]
|-
| [[Once Station|Once]] – [[Moreno, Buenos Aires|Moreno]]
| [[Sarmiento Line]]
|-
| rowspan="2" | 850
| [[Railway electrification in France|France]]
| Villefranche
| [[Ligne de Cerdagne]]
| Often referred to as the "Yellow Train"
|-
| [[Rail transport in Austria|Austria]]
| [[Vienna]]
| [[Wiener Lokalbahn]] ||
|-
| 900 || [[Rail transport in Belgium|Belgium]]
| Brussels
| [[Brussels Metro]] ||
|}

===Conductor rail systems (AC voltage)===
All systems are 3-phase unless otherwise noted.
{| class="wikitable" style="width:100%"
|-
! Voltage !! Current !! Contact !! Country
! Location !! Name of system !! Notes
|- style="background:#fee"
| rowspan="3" | 500 || rowspan="3" | 50&nbsp;Hz || rowspan="3" | top/bottom<ref>{{cite web |title=Monorail |url=http://www.harbourlink.net/library/vonRoll86.pdf |publisher=Von Roll Habegger Ltd. |access-date=15 November 2023 |location=Switzerland }}</ref>
| rowspan="3" | [[Rail transport in Australia|Australia]] || rowspan="2" | [[Gold Coast, Queensland]]
| [[Sea World (Australia)|Sea World]] [[Sea World Monorail System|Monorail]] || Operated 1986–2021
|- style="background:#fee"
| [[Oasis Shopping Centre]] || Operated 1989–2017
|- style="background:#fee"
| [[Sydney]], [[New South Wales]] || [[Sydney Monorail]] || Operated 1988–2013<ref>{{cite web |title=Sydney Monorail cars |url=https://collection.powerhouse.com.au/object/469910 |website=Powerhouse Collection |date=28 January 2014 |quote=500 volts AC 3 wire /50 Hertz}}</ref>
|-
| rowspan="9" | 600 || rowspan="5" | 50&nbsp;Hz || rowspan="9" | side
| [[Rail transport in China|China]] || [[Guangzhou]] 
| [[Guangzhou Metro]] – [[Zhujiang New Town Automated People Mover System|APM Line]] ||
|-
| colspan="2" | [[Rail transport in Singapore|Singapore]]
| [[Light Rail Transit (Singapore)|LRT]] – [[Bukit Panjang LRT line|Bukit Panjang line]] || <ref>{{cite book |title=Japan Railway & Transport 18|page=28|url= https://www.ejrcf.or.jp/jrtr/jrtr18/pdf/f26_singapore.pdf |access-date=2021-03-18 |df=dmy-all}}</ref>
|- 
| rowspan="6" | [[Rail transport in Japan|Japan]]
| [[Saitama Prefecture|Saitama]] || [[New Shuttle]] ||
|-
| rowspan="2" | [[Tokyo]] || [[Nippori-Toneri Liner]] ||
|-
| [[Yurikamome]] ||
|-
| rowspan="4" | 60&nbsp;Hz || [[Kobe]], [[Hyōgo Prefecture|Hyōgo]]
| [[Kobe New Transit]] ||
|-
| rowspan="2" | [[Osaka]] || [[Osaka Metro]] – [[Nankō Port Town Line]] ||
|-
| [[Kansai International Airport]] – [[Wing Shuttle]] ||
|-
| [[Rail transport in Taiwan|Taiwan]] || [[Taoyuan, Taiwan|Taoyuan]]
| [[Taoyuan International Airport]] – [[Taoyuan International Airport Skytrain|Skytrain]] ||
|}

==Special or unusual types==
===DC, plough collection from conductors in conduit below track===
{{Main|Conduit current collection}}
* [[London County Council Tramways]], later operated by [[London Passenger Transport Board|London Transport]]
* [[Third Avenue Railway|streetcars in New York City (Manhattan), New York]]
* [[Streetcars in Washington, D.C.|Washington, D.C. streetcars]]
* [[Panama Canal locks#Mules|Panama Canal locks']] ship handlers (called ''mules'')

===DC, one ground-level conductor===
* Wolverhampton Corporation Tramways, England (stud contact) (1902–1921)
* [[Tramway de Bordeaux|Bordeaux Tramway]], France ([[Ground level power supply#Use in Bordeaux|conductor rail]])
* Sydney Light Rail (tramway)

===DC, two-wire===
* [[London County Council Tramways#Electrification|Greenwich]], England. Previously used by trams when in the vicinity of [[Greenwich Observatory]];{{citation needed|date=August 2020}} separate from trolleybus supply.
* [[Streetcars in Cincinnati|Cincinnati]],{{citation needed|date=August 2020}} [[Ohio]], US. Tram (streetcar) system used this arrangement throughout, probably due to legal constraints on ground return currents.{{citation needed|date=August 2020}}
* [[Havana]] and [[Guanabacoa]],{{citation needed|date=August 2020}} Cuba. Tram (streetcar) systems in both cities used this arrangement.
* [[Lisbon]], Portugal. [[Elevador da Bica]], [[Elevador da Glória]] and Elevador da Lavra.{{citation needed|date=August 2020}}

===DC, power from running rails===
* [[Gross-Lichterfelde Tramway]] (1881–1893), 180 V
* [[Ungerer Tramway]] (1886–1895)
* transportable railways as a ride for children

===DC, four-rail{{anchor|DC, four-rail}}===
{{^|This section is linked to on the page Railway_electrification_system where it discusses fourth rail. If you rename this section, please change that link or preserve the anchor name.}}

{| class="wikitable" style="width:100%"
|-
! Voltage !! Type !! Contact system !! Name of system !! Location !! Country !! Notes
|-
| rowspan="4" | 750
| rowspan="3" | [[Guide bar]]s
| Lateral to both guide bars (one guide connected to [[Rail profile|running rail]])
| [[Paris Metro]] || [[Paris]]
| France || [[Rubber-tyred metro|Rubber-tyred]] lines only
|-
| rowspan="2" | Lateral (positive) and top of running rails (negative) contact
| [[Montreal Metro]] || [[Montreal]]
| Canada || Rubber-tyred lines
|-
| [[Mexico City Metro]] || [[Mexico City]]
| Mexico || Rubber-tyred lines
|-
| [[Third rail|Third]] and [[fourth rail]]
| Lateral (positive) and top (negative) contact
| [[Milan Transportation System]] || [[Milan]]
| Italy || Metro (only line 1)
|-
| 630 || Third and fourth rail
| Top contact || [[London Underground]]
| [[London]] || [[United Kingdom]]
| Transport for London<ref>{{cite web|url=http://www.tfl.gov.uk/tube/ |title=Tube &#124; Transport for London |publisher=[[Transport for London]]|access-date=2013-04-22}}</ref>
|}

==See also==
{{Portal|rail}}
{{div col|colwidth=22em}}
* [[Amtrak's 25 Hz traction power system]]
* [[Conduit current collection]]
* [[Current collector]]
* [[Ground level power supply]]
* [[List of tram systems by gauge and electrification]]
* [[Railway electrification]]
* [[Railroad electrification in the United States]]
* [[Third rail]]
* [[Traction current pylon]]
{{div col end}}

==Footnotes==
{{Reflist|30em}}

==References==
{{refbegin}}
* {{citation |url=http://www.bsistandards.co.uk |last=BS EN 50163 |title=EN 50163: Railway applications. Supply voltages of traction systems |year=2007 |publisher=IET |url-status=dead |archive-url=https://web.archive.org/web/20070213151651/http://www.bsistandards.co.uk/ |archive-date=2007-02-13}}
* {{citation |url=http://webstore.iec.ch/webstore/webstore.nsf/mysearchajax?Openform&key=60850&sorting=&start=1&onglet=1 |last=IEC 60850 |title=IEC 60850: Railway applications – Supply voltages of traction systems |edition=3rd |year=2007 }}
* {{RCTS-LocosLNER|10B}}
* {{cite book |last=Dixon |first=Frank |title=The Manchester South Junction & Altrincham Railway |edition=2nd |series=The Oakwood Library of Railway History |year=1994 |orig-date=1973 |publisher=Oakwood Press |location=Headington |isbn=0-85361-454-7 |id=OL34}}
* {{cite book |publisher=[[McGraw-Hill Company]] |url=https://books.google.com/books?id=1BvW7ax1FAEC |title=McGraw Electric Railway Directory |date=August 1920 |ref={{harvid|McGraw-Hill|1920}} }}
* {{cite book |last=Schweers+Wall |title= Eisenbahnatlas Schweiz |year=2012 |publisher=Verlag Schweers + Wall GmbH |isbn=978-3-89494-130-7 |id={{ASIN|3894941308|country=uk}}}}
* {{cite book |last=Swain |first=Alec |title=British Rail Fleet Survey 11: Overhead Line Electric Multiple-Units |year=1990 |publisher=[[Ian Allan Publishing|Ian Allan]] |location=Shepperton |isbn=0-7110-1902-9}}
{{refend}}

== External links ==
* [http://www.bahnstrom.de/bahnstromsysteme/weltweit.htm Electrification systems, track gauges and electrified track lengths in selected countries] (in German)
* [http://bueker.net/trainspotting/voltage_map_europe.php Map of European voltage systems]
* [http://extra.southernelectric.org.uk/features/historical-features/seginfohistory.html Southern Electric], England—details of 3rd rail electrification

{{Railway electrification}}{{Electric vehicles}}{{DEFAULTSORT:List of railway electrification systems}}
[[Category:Rail transport-related lists|Electric rail traction]]
[[Category:Electric power-related lists|Rail]]
[[Category:Electric rail transport]]