Electric unit EN57 / EN71

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EN57 1267, MOs810, CC BY-SA 4.0

EN57/71 EMU in reality

EN57' (type 5B+6B+5B, 5Bk+6Bk+5Bk, 5BT+6BT+5BT, 5Bm+6Bm+5Bm, 5Bu+6Bu+5Bu and 5Bg+6Bg+5Bg) - a normal gauge three-car low-platform electric multiple unit, produced at Pafawag's plant in Wroclaw in 1962-1993. It is the longest produced rolling stock EMU in the world - 1429 units were made. The prototype of the EN57 series was the high-performance unit EW55.

Based on the EN57 series, Pafawag has also designed four-car units with an additional engine section - EN71, four-car versions for long-distance transport (ED72 and ED73) and vehicles for suburban transport (EW58 and EW60) for the Tri-City Rapid Transit (oryg. SKM Trójmiasto). Both EW60 EMUs produce were sold after the end of their operation by PKP SKM and handed over to Koleje Mazowieckie, which subjected them to major repairs and modernisation. During the production process, structural changes were made, mainly concerning the braking and running gear elements of the vehicle. Units from 1900 onwards had a modified shape of the front wall and new equipment for the driver's cab, based on the EW58 series.

Over the years of operation, some EN57 units had undergone various upgrades by different operators. Some of these had been limited to changes on the external appearance of the units, while others included changes to the driveline design and modifications to meet the needs of disabled passengers.

Since the 1980s, railway enthusiasts and railwaymen have referred to EN57 series EMUs as "kibel", which means toilet in polish. [1]

EN71 is a standard-gauge 4-car electric multiple unit, designed for regional passenger transport on mountainous routes. It was created by adding a second motor unit to the standard EN57, doubling it's power and adding another car with 52 seats for a total of 264. EN71 can be coupled with another EN71 or with EN57 for multiple unit operation.

First batch of the EMU was produced at the Pafawag factory in Wrocław between 1965-1966 with the second batch being produced later, between 1974-1975, both batches for the Yugoslavian market. In 1976 20 units were produced for the domestic market, especifically, for the route Kraków-Zakopane where the old EN57 would underperform on high elevation gradients. In later years many were created by combining sections of damaged EN57 and some were taken back from the former Yugoslavian countries.

Unit parameters

Traction	Electric	Maximum power	608 kW
Engine type	LK450	Maximum speed	110 / 120 Km/h
Voltage	3000V DC	Weight	123 tons

Unit in the game

EN57-1316ra, screenshot from train depot

The development of this unit was first announced on 22.02.2023 and it will be added to the public version of the game on 21.11.2023's update.

Unit serial numbers that can be driven:

EN57-009
EN57-047
EN57-614
EN57-1000
EN57-1003
EN57-1051
EN57-1219
EN57-1316
EN57-1458
EN57-1567
EN57-1571
EN57-1752
EN57-1755
EN57-1796
EN57-1821
EN71-005
EN71-011

Cold start locomotive recovery procedure

Go to the passenger compartment and at the third door click on the fuse box and switch on the batteries, click again and unlock ground relay.
In the cabin, turn on cabin activation button.
Raise the rear pantograph.
Turn on the main switch.
Switch on the converter.
Switch on the compressors.
Switch on the radio station (on the panel and then on the radio physically)
Switch the lights to the driving position.
Release the handbrake using the handle on the left side of the cab.
Release the brakes.

Unit failures

Traction motor overload relay on. This indicator will only light up if the unit passes red light on semaphore. Set the controller to zero, set the direction lever to neutral. Press the Unlock traction motors overload relay button. The indicator light will turn off.

When passing a semaphore with red colour it is necessary to follow the above mentioned procedure and to recover the unit it is necessary to close main switch, converter, set the direction forward and the unit will be in working state.