KTM Class 83

Class 83
A Class 83 EMU Komuter train.
In service	1996–present
Manufacturer	Hyundai Precision and Marubeni
Refurbished	Woojin Industrial Systems (2018–)[1]
Number built	66 cars (22 sets)
Number scrapped	24 cars (8 sets)
Formation	3 per trainset
Capacity	406 (216 seats)
Operators	Keretapi Tanah Melayu
Depots	Batu Gajah Rail Depot Sentul Komuter Depot
Lines served	Padang Besar Line Padang Rengas Line Skypark Link Port Klang Line (backup trainset) Seremban Line (backup trainset)
Specifications
Car body construction	Stainless steel
Train length	68.4 m (224 ft 5 in)
Car length	22.2 m (72 ft 10 in) (end cars) 23.2 m (76 ft 1 in) (intermediate cars)
Width	2.75 m (9 ft 0 in)
Height	3,855 mm (12 ft 7.8 in)
Floor height	1.1 m (3 ft 7 in)
Doors	3 double-leaf pneumatic sliding doors per side
Maximum speed	160 km/h (99 mph) (design) 120 km/h (75 mph) (service)
Weight	123 t (121 long tons; 136 short tons)
Traction system	Mitsubishi Electric GTO–VVVF
Traction motors	8 × Mitsubishi Electric MB-5069-A 150 kW (200 hp) 3-phase AC induction motor[2]
Power output	1,200 kW (1,600 hp)
Electric system(s)	25 kV 50 Hz AC overhead catenary
Current collector(s)	Brecknell Willis pantograph
UIC classification	Bo′Bo′+2′2′+Bo′Bo′
Braking system(s)	single-pipe regenerative braking system
Track gauge	1,000 mm (3 ft 3+3⁄8 in) metre gauge

The Class 83 is a type of electric multiple unit operated by Keretapi Tanah Melayu on its KTM Komuter services. 22 sets were built by Hyundai Precision and Marubeni of South Korea and Japan respectively, in 3-car formations.^[3]

The KTM class 83 3-car formation consists of two motor cabs at either end of the set and a single trailer car in between, the trailer car in between is equipped with a Brecknell Willis pantograph for electric pick up. Narrow gangways integrate the 3-car sets. Each car features 3 double-leaf pneumatic sliding doors at either side which makes the KTM class 83 have the highest density of doors per rail-car in Malaysia.

Over the years, the KTM class 83 has been overhauled a number of times and its interior refurbished, however its interior layout, of longitudinal seating, has remained the same throughout it service life. However, four sets of class 83 has been refurbished for the KTM Skypark Link. The colour also changed from blue and yellow to orange and grey colour.

With the withdrawal of Adtranz/Walkers EMU for the Ampang Line, the KTM Class 83 is now the second oldest electric multiple unit in Malaysia after KTM Class 81.