Siemens-Duewag Supertram

Siemens-Duewag Supertram
Stagecoach Supertram 114
In service1994–present
ManufacturerSiemensDuewag
Built atDüsseldorf, Germany
Constructed1992
Refurbished2006–2009
Number built25
Number in service24
Fleet numbers101–125 (originally 01–25)
Capacity86 seats, 155 standing per tram
OperatorSouth Yorkshire Supertram
Specifications
Car body constructionSteel
Car length34.75 m (114 ft 0 in)
Width2.65 m (8 ft 8 in)
Height3,645 mm (11 ft 11+12 in)
Floor height450–880 mm (1 ft 6 in – 2 ft 11 in)
Platform height450 mm (1 ft 6 in)
Articulated sections3 (two articulations)
Wheel diameter670–588 mm (26.4–23.1 in) (new–worn)
Wheelbase1,800 mm (5 ft 11 in)
Maximum speed80 km/h (50 mph)
Weight52 t (51 long tons; 57 short tons) (tare)
Traction systemGTO armature chopper
Traction motors4 × 1KB2121 277 kW (371 hp) DC motor
Power output1,108 kW (1,486 hp)
Gear ratio4.833 : 1
Acceleration1.3 m/s2 (4.3 ft/s2)
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)
Electric systems750 V DC (nominal) from overhead catenary
Current collectionBrecknell Willis high reach pantograph
UIC classificationB′+B′B′+B′
Braking systemsElectrical brake (combined regenerative and rheostatic brake) spring-applied pneumatic brake (stand-by and parking brake), track brake
Track gauge1,435 mm (4 ft 8+12 in) standard gauge
Notes/references

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 October 2025, 24 units of the fleet are operational.