Hyundai Rotem J151

Hyundai Rotem J151
Exterior mockup of the J151
Interior mockup of the J151.
Stock typeElectric multiple unit
In service2028 (2028)
ManufacturerHyundai Rotem
DesignerDIARADESIGN
Built atChangwon, South Korea
Constructed2022 – 2026
Entered service2028 (2028)
Number under construction183 vehicles (61 sets)
Number built3 vehicles (1 set)
Formation3/4 per trainset
DM1–T–DM2
Fleet numbers3001 – 3062
Capacity450 passengers per 3-car train
OperatorsSingapore One Rail (ComfortDelGro's SBS Transit and RATP Dev Asia Pacific)
DepotTengah
Line served JRL  Jurong Region Line
Specifications
Car body constructionWelded aluminium
Train length56.8 m (186 ft 4+14 in)
Car length18.6 m (61 ft 14 in)
Width2.75 m (9 ft 14 in)
Height3.80 m (12 ft 5+58 in)
Doors1,500 mm (59 in), 6 per car, 3 per side
Maximum speed70 km/h (43 mph) (service)
Weight94.6 t (94,600 kg)
Electric systems750 V DC third rail
Current collectionCollector shoe
UIC classificationBo′Bo′+2′2′+Bo′Bo′
Safety systemsSiemens Trainguard Sirius moving block CBTC ATC under ATO GoA 4 (UTO), with subsystems of ATP, Controlguide Rail 9000 ATS and Trackguard Westrace MK2 CBI
Coupling systemDellner
Track gauge1,435 mm (4 ft 8+12 in) standard gauge

The Hyundai Rotem J151 is the first generation electric multiple unit rolling stock to be introduced on the under-construction Jurong Region Line of Singapore's Mass Rapid Transit (MRT) system, manufactured by Hyundai Rotem under Contract J151. In 2020, the Land Transport Authority (LTA) purchased 62 three-car medium-capacity Hyundai Rotem trainsets (186 cars) for the Jurong Region Line, with the first trainset was delivered to Singapore on 17 September 2025, and the fleet is expected to enter service when the line opens in 2028.