Alstom Metropolis C751A
Alstom Metropolis C751A
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Front of a Alstom Metropolis C751A at Sengkang Depot. Trains running on this line are driverless and fully automated. | |
Interior of a Alstom Metropolis C751A before refurbishment Interior of a refurbished Alstom Metropolis C751A. | |
| Stock type | Electric multiple unit |
| In service | 20 June 2003 – Present |
| Manufacturer | Alstom |
| Built at | Valenciennes, France |
| Family name | Metropolis |
| Constructed | 2000 – 2003 |
| Entered service | 20 June 2003 |
| Refurbished | CRRC Nanjing Puzhen 2019 – 2026 |
| Number built | 150 Vehicles (25 sets) |
| Number in service | 150 Vehicles (25 sets) |
| Formation | 6 per trainset DT–Mp–Mi+Mi–Mp–DT |
| Fleet numbers | 7001/7002 – 7049/7050 |
| Capacity | 1920 passengers (298 seats) |
| Operator | SBS Transit Ltd (ComfortDelGro Corporation) |
| Depot | Sengkang |
| Line served | NEL North East Line |
| Specifications | |
| Car body construction | Welded aluminium |
| Train length | 138.5 m (454 ft 4+3⁄4 in) (with 6 Cars) |
| Car length |
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| Width | 3.2 m (10 ft 6 in) |
| Height | 3.7 m (12 ft 1+5⁄8 in) |
| Floor height | 1,100 mm (3 ft 7+1⁄4 in) |
| Doors | 1,450 mm (57+1⁄8 in), 8 per car, 4 per side |
| Wheel diameter | 850–775 mm (33.5–30.5 in) |
| Wheelbase | 2.5 m (8 ft 2 in) |
| Maximum speed |
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| Weight | 230 t (230 long tons; 250 short tons) (6 passengers/1 m2 or 11 sq ft) |
| Axle load | 16 t (16 long tons; 18 short tons) |
| Traction system | Alstom ONIX 1500 IGBT–VVVF |
| Traction motors | 16 × Alstom 4LCA 2138 150 kW (200 hp) asynchronous 3-phase AC |
| Power output | 2.4 MW (3,200 hp) |
| Acceleration | 1.1 m/s2 (2.5 mph/s) |
| Deceleration | 1.3 m/s2 (2.9 mph/s) (Emergency) |
| Electric systems | 1,500 V DC overhead catenary |
| Current collection | Pantograph |
| UIC classification | 2′2′+Bo′Bo′+Bo′Bo′+Bo′Bo′+Bo′Bo′+2′2′ |
| Bogies | Alstom B25 |
| Braking systems | Regenerative and pneumatic |
| Safety systems | Alstom URBALIS 300 moving block CBTC ATC under ATO GoA 4 (UTO), with subsystems of ATP, Iconis ATS and Smartlock CBI |
| Coupling system | Scharfenberg coupler |
| Track gauge | 1,435 mm (4 ft 8+1⁄2 in) standard gauge |
The Alstom Metropolis C751A is the first generation of communications-based train control (CBTC) electric multiple unit rolling stock in operation on the North East Line (NEL) of Singapore's Mass Rapid Transit (MRT) system since 2003. 25 trainsets were purchased for the line.
Following the withdrawal of the C151, C651 and C751B on the North South and East West Lines, the C751A is currently the oldest MRT rolling stock in Singapore.