IÉ 201 Class

Iarnród Éireann / Northern Ireland Railways 201 Class
201 Class 228 at Lanyon Place (Formerly Belfast Central) in current Enterprise livery in 2016
Type and origin
Power typeDiesel–electric
BuilderGeneral Motors Diesel, London, Ontario, Canada
ModelJT42HCW
Build date1994–1995
Total produced34
Specifications
Configuration:
​
 • AARC-C
 • UICCo′Co′
Gauge1,600 mm (5 ft 3 in)
TrucksGC bogies
Wheel diameter1,016 mm (40 in)
Length20.955 m (68 ft 9 in)
Width2.64 m (8 ft 8 in)
Height4.02 m (13 ft 2+1⁄4 in)
Loco weight109 tonnes (107.3 long tons; 120.2 short tons)
Fuel capacity4,500 litres (990 imp gal; 1,200 US gal)
Prime moverEMD 12-710G3B
Engine typeV12 diesel
AspirationTurbocharged
Traction motorsSix axle-hung, nose-suspended D43 traction motors
Cylinders12
MU workingAll IÉ and NIR GM-EMD locomotives
Train heatingHEP: Dayton-Phoenix alternator, model E7145, 438 kVA, 220/380VAC, 3-phase, 50 Hz
Loco brake
Performance figures
Maximum speed100 mph (160 km/h)
Power output
  • 3,200 hp (2,400 kW) gross
  • 2,970 hp (2,210 kW) traction
Career
Operators
Number in class32 Irish Rail and 2 Northern Ireland Railways
Numbers201–234

The Iarnród Éireann (IÉ) / Northern Ireland Railways 201 Class locomotives are the newest and most powerful diesel locomotives operating in Ireland and were built between 1994 and 1995 by General Motors Diesel. They are model type JT42HCW, fitted with an EMD 12-710G3B engine of 3,200 hp (2,400 kW), weigh 109 tonnes (107.3 long tons; 120.2 short tons) and have a maximum speed of 100 mph (160 km/h).