KTM Class 81

The Class 81 is the first and oldest type of electric multiple unit introduced by Keretapi Tanah Melayu for its KTM Komuter service. 18 sets were designed by Hunslet TPL and built by Ganz Works in 1993-1994.

Class 81
A Class 81 EMU 14 Komuter train.
In service1994–2012, 2018–present
ManufacturerGanz-Hunslet
DesignerHunslet TPL
Built atGanz Works
Refurbished2018 by Woojin Industrial Systems
Number built54 cars (18 sets)
Formation3 per trainset
Capacity414 (224 seats)
OperatorsKeretapi Tanah Melayu
Depots
  • Batu Gajah Rail Depot
  • Sentul Komuter Depot
Lines served
Specifications
Height3.65 m (12 ft 0 in)
Maximum speed
  • 160 km/h (99 mph) (design)
  • 120 km/h (75 mph) (service)
Weight121 t (119 long tons; 133 short tons)
Traction system
  • HOLEC GTO–VVVF (original)
  • Woojin IGBT–VVVF (refurbished)
Traction motors8 × HOLEC DMKT55/18.5 161 kW (216 hp) 3-phase AC induction motor
Power output1,288 kW (1,727 hp)
Electric system(s)25 kV 50 Hz AC overhead catenary
Current collector(s)Pantograph
UIC classificationBo′Bo′+2′2′+Bo′Bo′
Track gauge1,000 mm (3 ft 3+38 in) metre gauge

The Class 81 currently operates in a fixed 3-car formation for its regular service. The middle coach is exclusively for women and children.

The KTM Class 81 design is derived from the British Rail Class 323, with the main alteration being that it has single leaf swing-plug doors instead of a double leaf type.

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