Bombardier Movia C951/C951A

Bombardier MOVIA C951
Bombardier MOVIA C951
	Exterior mockup of the C951
	Interior of a C951 train
In service	22 December 2013 – Present
Manufacturer	Changchun Bombardier Railway Vehicles (Bombardier Transportation and CNR/CRRC Changchun)
Built at	Changchun, China
Family name	Movia
Constructed	2012 – 2017
Entered service	2013
Number built	276 Vehicles (92 Sets)
Number in service	276 Vehicles (92 Sets)
Formation	3 per trainset; DM1–T–DM2
Fleet numbers	9001 – 9073 (C951); 9074 – 9092 (C951A);
Capacity	931 Passengers
Operators	SBS Transit (ComfortDelGro Corporation)
Depots	Gali Batu; Tai Seng;
Lines served	DTL Downtown line
Specifications
Car body construction	Welded aluminium
Train length	70.1 m (229 ft 11+7⁄8 in)
Car length	23.65 m (77 ft 7+1⁄8 in) (DM); 22.8 m (74 ft 9+5⁄8 in) (T);
Width	3.2 m (10 ft 6 in)
Height	3.68 m (12 ft 7⁄8 in)
Doors	1,450 mm (57+1⁄8 in), 8 per car, 4 per side
Wheel diameter	840 mm (33 in) (new)
Wheelbase	2.5 m (8 ft 2 in)
Maximum speed	90 km/h (56 mph) (design); 80 km/h (50 mph) (service);
Weight	38.3 t (37.7 long tons; 42.2 short tons) per car
Traction system	Bombardier MITRAC (1000 series) IGBT–VVVF
Traction motors	Totally enclosed fan-cooled permanent-magnet synchronous motor (Bombardier DR1200)
Acceleration	1.1 m/s2 (2.5 mph/s)
Deceleration	1.1 m/s2 (2.5 mph/s) (service); 1.4 m/s2 (3.1 mph/s) (emergency);
Electric system(s)	750 V DC third rail
Current collector(s)	Collector shoe
UIC classification	Bo′Bo′+2′2′+Bo′Bo′
Bogies	FLEXX Metro 3100
Braking system(s)	Regenerative, rheostatic and pneumatic (Knorr-Bremse)
Safety system(s)	Siemens 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 system	Scharfenberg
Track gauge	1,435 mm (4 ft 8+1⁄2 in) standard gauge

The Bombardier MOVIA C951 is the first generation electric multiple unit rolling stock in operation on the Downtown Line of Singapore's Mass Rapid Transit (MRT) system. The contract was won by Bombardier Transportation (now Alstom) and the rolling stock was built by Changchun Bombardier Railway Vehicles (joint venture of Bombardier Transportation and CNR/CRRC Changchun). Initially, the authorities had ordered 73 trains, although LTA had ordered an additional 15 trains and a final 4 more trains under C951A which makes a total of 92 trainsets were manufactured under C951.

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