Siemens-Duewag Supertram

Siemens-Duewag Supertram
Stagecoach Supertram 114
In service	1994–present
Manufacturer	Siemens–Duewag
Built at	Düsseldorf, Germany
Constructed	1992
Refurbished	2006–2009
Number built	25
Number in service	23
Fleet numbers	101–125 (originally 01–25)
Capacity	86 seats, 155 standing per tram
Operators	Sheffield Supertram
Specifications
Car body construction	Steel
Car length	34.75 m (114 ft 0 in)
Width	2.65 m (8 ft 8 in)
Height	3,645 mm (11 ft 11+1⁄2 in)
Floor height	450–880 mm (1 ft 6 in – 2 ft 11 in)
Platform height	450 mm (1 ft 6 in)
Articulated sections	3 (two articulations)
Wheel diameter	670–588 mm (26.4–23.1 in) (new–worn)[1]
Wheelbase	1,800 mm (5 ft 11 in)
Maximum speed	80 km/h (50 mph)
Weight	52 t (51 long tons; 57 short tons) (tare)
Traction system	GTO armature chopper
Traction motors	4 × 1KB2121 227 kW (304 hp) DC motor
Power output	908 kW (1,218 hp)
Transmission	4.833 : 1 (29 / 6) gear ratio
Acceleration	1.3 m/s2 (4.3 ft/s2)[1]
Deceleration	1.5 m/s2 (4.9 ft/s2) (service; design) 1.16 m/s2 (3.8 ft/s2) (service; limited) 3 m/s2 (9.8 ft/s2) (emergency; design) 2.46 m/s2 (8.1 ft/s2) (emergency; limited) [1]
Electric system(s)	750 V DC (nominal) from overhead catenary
Current collector(s)	Brecknell Willis high reach pantograph
UIC classification	B′+B′B′+B′
Braking system(s)	Electrical brake (combined regenerative and rheostatic brake) spring-applied pneumatic brake (stand-by and parking brake), track brake
Track gauge	1,435 mm (4 ft 8+1⁄2 in) standard gauge
Notes/references
[2][3]

The Siemens-Duewag Supertram is a fleet of 25 trams built by Siemens-Duewag of Düsseldorf, Germany in 1992 for use on the South Yorkshire Supertram light rail network in England. They were the only trams in use on the network until the entry into service of British Rail Class 399 tram-trains in 2017. As of May 2024, 24 of the fleet are operational, with one currently out of service. Tram 105 was involved in a road traffic collision (RTC) and has arrived back at the depot after repairs, but has not yet returned to service.