D-class Melbourne tram

The D-class Melbourne tram is a fleet of low-floor Combino trams that operate on the Melbourne tram network. They were built by Siemens in Uerdingen, Krefeld, Germany, and are divided into two classes: the three section D1-class which was introduced between 2002 and 2004, and the five section D2-class which was introduced in 2004. The D-class was procured by M>Tram and have been operated by Yarra Trams since they took control of the entire tram network in April 2004.

Not to be confused with D-class Melbourne tram (1914).

D-class
D2 5016 in PTV livery on route 19 in Elizabeth Street in February 2023
Interior
ManufacturerSiemens
Built atUerdingen, Krefeld, Germany
Family nameCombino
Constructed2002-2004
Number built59
Number in service59
Fleet numbers
  • D1 3501–D1 3538
  • D2 5001–D2 5021
Capacity
  • D1: 32/90
  • D2: 56/130
(seated/standing)
Depots
Specifications
Train length
  • D1: 20.04 m (65 ft 9 in)
  • D2: 29.85 m (97 ft 11 in)
Width2.65 m (8 ft 8 in)
Height
  • D1: 3.65 m (12 ft 0 in)
  • D2: 3.53 m (11 ft 7 in)
Doors2 single, 4 (D1) or 6 (D2) double
Articulated sections
  • D1: 3 (2 articulations)
  • D2: 5 (4 articulations)
Wheel diameter600–520 mm (24–20 in) (new–worn)
Wheelbase1.8 m (5 ft 11 in)
Maximum speed70 km/h (43 mph)
Weight
  • D1: 25.8 t (25.4 long tons; 28.4 short tons)
  • D2: 35.3 t (34.7 long tons; 38.9 short tons)
Traction motors4 × Siemens 1TB1422-0GA03 100 kW (130 hp)
Power output400 kW (540 hp)
Acceleration1.3 m/s2 (4.3 ft/s2)
Deceleration
  • 1.61 m/s2 (5.3 ft/s2) (Max D1 operational)
  • 1.47 m/s2 (4.8 ft/s2) (Max D2 operational)
  • 1.35 m/s2 (4.4 ft/s2) (Average D1 operational)
  • 1.25 m/s2 (4.1 ft/s2) (Average D2 operational)
  • 3.4 m/s2 (11 ft/s2) (Max D1 emergency)
  • 3.3 m/s2 (11 ft/s2) (Max D2 emergency)
  • 2.74 m/s2 (9.0 ft/s2) (Average D2 emergency)
Electric system(s)600 V DC (nominal) from overhead catenary
Current collector(s)Pantograph
UIC classification
  • D1: Bo′+Bo′
  • D2: Bo′+2′+Bo′
BogiesSF 30 C TFW (powered), SF 30 C LFW (D2 trailer)
Track gauge1,435 mm (4 ft 8+1⁄2 in) standard gauge
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