Alstom Metropolis C830C

Alstom Metropolis C830C
A C830C train (Set 841) at Kim Chuan Depot
Interior of C830C.
Stock typeElectric multiple unit
In service26 June 2015 (2015-06-26) – present
ManufacturerShanghai Alstom Transport (Alstom and Shanghai Electric)
Built atShanghai, China
Family nameMetropolis
Constructed2014 – 2015
Entered service26 June 2015 (2015-06-26)
Number built72 vehicles (24 sets)
Number in service72 vehicles (24 sets)
Formation3 per trainset
Mc1–T–Mc2
Fleet numbers841 – 864
Capacity931 passengers
OperatorsSMRT Trains Ltd (SMRT Corporation)
DepotsKim Chuan
Lines served CCL  Circle line
Specifications
Car body constructionWelded aluminium
Train length70.1 m (229 ft 11+78 in)
Car length
  • 23.65 m (77 ft 7+18 in) (Mc)
  • 22.8 m (74 ft 9+58 in) (T)
Width3.2 m (10 ft 6 in)
Height3.7 m (12 ft 1+58 in)
Doors1,450 mm (57+18 in), 8 per car, 4 per side
Maximum speed
  • 90 km/h (56 mph) (design)
  • 78 km/h (48 mph) (service)
Traction systemAlstom OPTONIX IGBTVVVF
Traction motors8 × 150 kW (201 hp) 3-phase AC induction motor
Power output1.2 MW (1,609 hp)
Acceleration1.1 m/s2 (2.5 mph/s)
Deceleration1.3 m/s2 (4.3 ft/s2) (Emergency)
Electric system(s)750 V DC third rail
Current collector(s)Collector shoe
UIC classificationBo′Bo′+2′2′+Bo′Bo′
Braking system(s)Regenerative and pneumatic
Safety system(s)Alstom URBALIS 300 moving block CBTC ATC under ATO GoA 4 (UTO), with subsystems of ATP, Iconis ATS and Smartlock CBI
Coupling systemScharfenberg
Track gauge1,435 mm (4 ft 8+12 in) standard gauge

The Alstom Metropolis C830C is the second generation of communication-based train control (CBTC) electric multiple unit rolling stock in operation on the Circle line of Singapore's Mass Rapid Transit (MRT) system. 24 trainsets of three cars were manufactured by Shanghai Alstom Transport Co Ltd (a joint venture between Alstom and Shanghai Electric), with deliveries from end June 2014.