NSW TrainLink D set

D set
D31 testing at Sydney Terminal, January 2023
Interior (lower deck)
In serviceLate 2024/Early 2025
ManufacturerHyundai Rotem
Built atChangwon, South Korea
Replaced
Constructed2019–present
Number under construction610 carriages (61 4-car sets and 61 6-car sets)
Formation
  • DD–DN–DND–DDA
  • DD–DNL–DT–DN–DND–DDA
Fleet numbers
  • D1–D61 (4-car sets)
  • D101–D161 (6-car sets)
OperatorsNSW TrainLink (testing phase)
DepotsKangy Angy Maintenance Centre
Lines served
Specifications
Car body constructionStainless steel
Train length
  • 81.55 m (267 ft 6+58 in) (4-car sets)
  • 122.23 m (401 ft 14 in) (6-car sets)
Car length
  • 20,435 mm (67 ft 12 in) (DD/DDA)
  • 20,340 mm (66 ft 8+34 in) (DNL/DT/DN/DND)
Width3,034 mm (9 ft 11+12 in)
Height4,402 mm (14 ft 5+14 in)
DoorsPlug-style, 2 per side
Maximum speed176 km/h (109 mph) (design) 130 km/h (81 mph) (service)
Weight
  • 199.8 t (196.6 long tons; 220.2 short tons) (4-car sets)
  • 298 t (293 long tons; 328 short tons) (6-car sets)
Traction systemMitsubishi SiCVVVF[1]
Traction motors3-phase AC induction motor[1]
Acceleration0.8 m/s2 (2.6 ft/s2)
Deceleration
  • 1.01 m/s2 (3.3 ft/s2) (service)
  • 1.1 m/s2 (3.6 ft/s2) (emergency)
Electric system(s)1,500 V DC (nominal) from overhead catenary
Current collector(s)Pantograph
UIC classification
  • 2′2′+Bo′Bo′+Bo′Bo′+2′2′ (4-car sets)
  • 2′2′+Bo′Bo′+2′2′+Bo′Bo′+Bo′Bo′+2′2′ (6-car sets)
Coupling systemDellner
Track gauge1,435 mm (4 ft 8+12 in) standard gauge

The NSW TrainLink D sets, also referred to as the Mariyung trains, are a class of electric multiple units (EMU) being built to replace NSW TrainLink's Intercity EMU fleet. The trains will operate on services from Sydney to Newcastle, Lithgow and Kiama, allowing the retirement of NSW TrainLink's V set fleet, and freeing the H set (OSCAR) fleet for reallocation to Sydney suburban services.

The first trains were delivered in December 2019. After a protracted dispute between the government and the drivers' trade union over their safety, the first are scheduled to enter service in late 2024/early 2025.[2][3]

  1. ^ a b "Mitsubishi Electric to Supply Railway Systems for TfNSW" (PDF). Mitsubishi Electric. 5 September 2016. Archived (PDF) from the original on 29 October 2021. Retrieved 13 October 2021.
  2. ^ O'Sullivan, Matt (23 March 2023). "Passengers face months-long wait for multibillion-dollar train fleet". The Sydney Morning Herald. Archived from the original on 23 March 2023. Retrieved 23 March 2023.
  3. ^ "Agreement reached for New Intercity Fleet". NSW Government. Retrieved 21 August 2023.