View source for PKP class ED72

{{Short description|Class of Polish electric multiple unit}}{{No footnotes|date=July 2023}}{{Infobox Train
| background       = 
| name             = PKP ED72
| image            = File:Bialogard-ED72-016.jpg 
| imagesize        = 300px
| caption          = ED72-016 in the 2nd Polregio livery at [[Białogard]], May 2008
| interiorimage    = 
| interiorcaption  = 
| service          = 1993–present
| manufacturer     = [[Pafawag]]
| factory          = 
| family           = 
| replaced         = 
| yearconstruction = 1993–1997
| yearservice      = 
| refurbishment    = [[Pojazdy Szynowe Pesa Bydgoszcz|ZNTK "Minsk Mazowiecki", PESA Bydgoszcz]] and Polregio [[Kruszewiec, Opoczno County|Kruszewiec]] Rolling Stock Repair Plant<br>2011–2020
| yearscrapped     = 
| numberconstruction= 
| numberbuilt      = 21 trainsets
| numberservice    = 
| numberpreserved  = 
| numberscrapped   = 
| formation        = 4 cars per trainset<br>(ra+s+s+rb)
| fleetnumbers     = 
| capacity         = 232–288 seats
| operator         = [[Polish State Railways|PKP]] (1993–2001)<br>[[Polregio]] (2001–present)<br>[[Arriva RP]] (2013–2015)
| depots           = 
| lines            = 
| carbody          = 
| trainlength      = {{convert|86840|mm|ftin|0|abbr=on}}
| carlength        = 
| width            = {{convert|2800|mm|ftin|0|abbr=on}}
| height           = {{convert|3720|mm|ftin|0|abbr=on}}
| floorheight      = 
| platformheight   = 
| entrylevelorstep = 
| art-sections     = 
| doors            = 
| maxspeed         = {{ubl|class=nowrap|
 |'''ED72A and ED72Ac rebuilds:'''
 |{{convert|130|km/h|abbr=on|round=10}}
 |'''Original:'''
 |{{convert|110|km/h|abbr=on|round=10}}
}}
| weight           = {{convert|182|t}}
| acceleration     = 
| deceleration     = 
| traction         = 
| engine           = 
| poweroutput      = ''Continuous:'' {{convert|1160|kW|hp|0|abbr=on}}
| transmission     = LKf450 or LKa470 traction motors
| aux              = 
| powersupply      = 
| hvac             = Electric heating
| electricsystem   = 
| collectionmethod = 
| uicclass         = 2′2′+Bo′Bo′+Bo′Bo′+2′2′
| aarwheels        =
| bogies           = 
| brakes           = [[Maschinenfabrik Oerlikon|Oerlikon]]
| safety           = [[Dead man's switch|Radio-Stop]], [[:pl:Samoczynne hamowanie pociągu|SHP]]
| coupling         = [[Scharfenberg coupler|Scharfenberg]]
| multipleworking  = [[PKP class EN57|EN57]], [[PKP class EN71|EN71]]
| gauge            = {{RailGauge|sg}}
}}

The '''ED72''' (manufacturer's designation: '''Pafawag 5Bs/6Bs''') is a Polish four-car, long distance [[electric multiple unit]] operated by [[Polregio|Przewozy Regionalne (Polregio)]]. Like its cousin ([[EN71]]), the ED72 is based on the [[EN57]] and became the basis for its successor: the [[PKP class ED73|ED73]].

==History==
Between 1993 and 1997, 21 units were built by [[Pafawag]]. The newly built ED72s were assigned to large interregional transit operations in the towns of [[Poznań]], [[Szczecin]], [[Kraków]], and [[Bydgoszcz]].

The series was created as an "upmarket" replacement for the more spartan [[EN57]] and [[EN71]] electric multiple units. The express passenger service, [[InterRegio]], for which the series was designed, did not find the ED72 to be as comfortable as they had anticipated.

Currently, all 21 units are still in use, servicing mostly [[InterRegio]] and some local Regio and RegioPlus trains.

==Modifications==
The ED72 introduced a number of innovations over the previous series of EMUs. Amongst these was converting the '''rb''' (rear [[control car]]s) sections to first class units which were fitted with more comfortable seats, as well as new upholstery in the second class carriages. Double glazed windows were fitted; buttons for opening and closing the doors were installed &mdash; rather than having to wait for the driver to operate them; and matrix route manifests were installed, as opposed to the traditional blinds which only displayed the train's destination. The last unit to be produced &mdash; ED72-021 &mdash; is unique in that it has sliding doors that open outwards.

In terms of the unit's appearance, the major difference &mdash; apart from the red and yellow colour scheme &mdash; is the control cars' front ends. Furthermore, ED72s were originally equipped with [[Pantograph (rail)#Single- and double-arm pantographs|single-arm pantographs]], but most have been converted to using the traditional, diamond-shaped, double-arm version.

The ED72's couplers allow it to be easily connected to other EMUs, and this is done quite frequently.

==Rebuilds and refurbishment==
[[File:ED72A-003 in Toruń Kluczyki.JPG|thumb|ED72A-003 owned by [[Kuyavian-Pomeranian Voivodeship]] at Toruń Kluczyki depot, January 2013.]]
[[File:ED72Ac-101 (2), Wrocław Główny, 2018-06-15.jpg|thumb|ED72Ac-101 at [[Wrocław Główny railway station]], June 2018.]]
20 of the 21 ED72 units (except the last one) have been either rebuilt by [[Pojazdy Szynowe Pesa Bydgoszcz|ZNTK "Minsk Mazowiecki" and PESA Bydgoszcz]] or refurbished by Polregio Rolling Stock Repair Plant in [[Kruszewiec, Opoczno County|Kruszewiec]] between 2011 and 2020. 6 units have been rebuilt to '''ED72A''' in 2011–2013, sporting a redesigned driver's cab design similar to rebuilt EN57 and EN71 "turbokibels", while another 6 units were rebuilt to '''ED72Ac''' in 2017–2018, sporting a much more streamlined driver's cab nose design somewhat reminiscent of the [[Pesa Elf]]. Both ED72A and ED72Ac units also had their original traction motors replaced with newer [[Induction motor|asynchronous]] ones, enabling an increase in maximum speed to {{convert|130|km/h|mph|0|abbr=on}}. Interior-only refurbishments were performed by the aforementioned Polregio Rolling Stock Repair Plant on the remaining 8 units, mainly including new [[bicycle carrier|bicycle racks]].

==Resources==
*[https://web.archive.org/web/20030810042110/http://www.igor.kolej.szczecin.pl/ Modern Locos Gallery]
*[https://web.archive.org/web/20051223052115/http://rail.pl/ Rail Service]
*[http://www.lokomotywy.prv.pl www.lokomotywy.prv.pl]
*[https://archive.today/20121205093245/http://www.mikoleje.kolej.szczecin.pl/ Mikoleje]
*[http://www.parowozy.pl/skansen/spalinowe Chabówka Rail Museum]

==See also==
*[[Polish locomotives designation]]

{{commons|ED72}}

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{{PKP Locomotives}}
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[[Category:Electric multiple units of Poland]]
[[Category:Pafawag multiple units]]