PKP class EU20

4 ft 8+1⁄2 in)Wheel diameter1.35 m (4 ft 5 in)Length18.5 m (60 ft 8 in)Width3.05 m (10 ft 0 in)Loco weight120 tonnes (120 long tons; 130 short tons)Current pickup(s)PantographTraction motors6 of, gear-ratio 81:21Loco brakeKnorr

Performance figures
Maximum speed	110 km/h (68 mph)
Power output	2,520 kW (3,380 hp)

Career
Operators	PKP
Numbers	EU20-01 to EU20-34
Retired	1976–81
Preserved	EU20-24
Disposition	One preserved, remainder scrapped

The EU20 is an East German standard gauge electric locomotive specially built for, and used by, the Polish national rail operator, PKP.

History

In production for a mere three years (1955–1958), the series was built at the Lokomotivbau Elektrotechnische Werke works — commonly shortened to LEW — in Hennigsdorf, East Germany. During this time, 34 units were produced with the intention for use as a mixed-traffic locomotive – hence its EU designation – though the reality is that the EU20 saw more use as a freight locomotive than a passenger one. EU20s were the first electric locomotives to be used on the route between Warsaw and Silesia.

The class gained notoriety for its frequent breakdowns due to overheating of resistors, and the lack of additional cooling facilities found in other locomotives.

Technical data

Mechanically, the EU20 was identical to the earlier EU04 (also built by LEW), sharing the same traction engines, rectifiers, and gas compressors.

Operational history

During the series' 26-year service, most units were assigned to the Piotrków Trybunalski depot. EU20s were withdrawn over a 6-year period, beginning in 1976, with the last locomotive being withdrawn in 1981.

Current status

EU20-24 has been^[when?] preserved as an exhibit at the Warsaw Railway Museum, and is the only surviving example from the series.

Diesel

Standard gauge	SM01 SM02 SM03 SM04 SM15 SM25 SM30 SP30 SM31 SP32 SM40 ST40 SM41 SM42 SP42 SU42 ST43 ST44 SP45 ST45 SU45 SU46 SP47 SM48 ST48 SU160
Narrow gauge	Ld1 Lyd1 Lyd2 Lxd2

ElectricSteam

Standard gauge*	Ok22 OKl27 OKz32 Ol49 Os24 Pm36 Pt31 Pt47 Pu29 TKh49 TKt48 Tr21 Ty23 Ty37 Ty42 Ty43 Ty45 Ty51 Ty246
Standard gauge**	Od2 Oi1 Oi2 Ok1 OKi1 OKi2 OKl2 OKl12 OKo1 Ol12 Ot1 Pd1 Pd4 Pd5 Pf1 Pf12 Pk1 Pk2 Pm2 Pm3 Pn12 Pt1 Th1 Th3 Th24 Ti1 Ti2 Ti4 Ti11 Ti12 Ti16 Ti17 TKh1 TKh2 TKi1 TKi3 TKp1 TKp11 TKp101 TKt1 TKt2 TKt3 TKw1 TKw2 Tp1 Tp2 Tp3 Tp4 Tp15 Tp102/104 Tr1 Tr5 Tr6 Tr11 Tr12 Tr20 Tr201/203 Tr202 Tw1 Tw12 Ty1 Ty2 Ty3 Ty4 Ty5
Narrow gauge	Px27 Px29 Px38 Px48 Px49 T49 Tw47 Tw53 Tx23 Tx26

Multiple units

Electric	14WE/EN61 19WE 33WE 35WE 36WE EW51 EW52 EW53 EW54 EW55 EN56 EN57 EW58 ED59 EW60 EN62/EN76/EN96 ED70 EN71 ED72 ED73 ED74 EN75/ER75/ED160 EN77 ED78 EN80 EN81 EW90 EW91 EW92 EN94 EN95 EN97 EN100 ED161 ED250
Diesel	222M 810** MR/MRD** SN51 SN52 SN60 SN61 SD80** SN80 SN81 SN82** SN83** SN84** SD85** SA101 SA102 SA103 SA104 SA105 SA106 SA107 SA108 SA109 SA110 SA131 SA132 SA133 SA134 SA135 SA136 SA137 SA138 SA139 VT627**

Metro cars