British Rail Class 777

British Rail Class 777
METRO
Merseyrail Class 777 at Hooton
Merseyrail Class 777 at Hooton
In service23 January 2023 – present[1][2]
ManufacturerStadler Rail
Assembly
  • Stadler Altenrhein AG
  • Stadler Rheintal AG[3]
Built at
Family nameMETRO
Replaced
Constructed2018–Present
Number built53[6]
Formation
  • 4 cars per unit:
  • DTSO-MSO-MSO-DTSO[7]
Fleet numbers(see § Fleet details)
Capacity182 seats[5]
OwnersMerseytravel
OperatorsMerseyrail
Depots
Lines served
Specifications
Car body constructionAluminium
Train length64.98 m (213 ft 2 in)
Width2.820 m (9 ft 3.0 in)
Height3.828 m (12 ft 6.7 in)
Floor height960 mm (3 ft 2 in)
DoorsDouble-leaf sliding plug, each 1.300 m (4 ft 3.2 in) wide (total 6 per side)
Wheel diameter760 mm (30 in)
WheelbaseBogies: 2.400 m (7 ft 10.5 in)
Maximum speed
  • On external supply:
    75 mph (120 km/h)
  • 777/1 in battery mode:
    62 mph (100 km/h)[note 1]
Weight99 t (97 long tons; 109 short tons)
Traction systemIGBT-VVVF
Traction motors6 × TSA TMF 50-20-4,
each of 250 kW (340 hp)[9]
Power output
  • At wheels:
  • Max.: 2,100 kW (2,800 hp)
  • Cont.: 1,500 kW (2,000 hp)
Tractive effortStarting: 162 kN (36,000 lbf)
AccelerationStarting: 1.1 m/s2 (3.6 ft/s2)
Electric system(s)750 V DC third rail
Current collector(s)Contact shoe
UIC classification2′(Bo)′(Bo)′(Bo)′2′
Braking system(s)Electro-pneumatic and regenerative
Safety system(s)
Coupling systemDellner
Multiple workingWithin class (max. 2 units)[7]
Track gauge4 ft 8+1⁄2 in (1,435 mm) standard gauge
Notes/references
Sourced from[10] unless otherwise noted.

The British Rail Class 777 METRO is a class of electric multiple unit passenger trains currently being delivered by the Swiss rolling stock manufacturer Stadler Rail, being used on the Merseyrail network in the Liverpool City Region and adjacent areas of Cheshire and Lancashire. The trains have the ability to operate on the third rail-powered sections of the network, with some units carrying onboard batteries to allow use on unpowered track. Ordered in 2016, construction of the units began in 2018. The first unit entered service on 23 January 2023, following delays to the deployment programme. The Class 777 will replace Merseyrail's current Class 507 and Class 508 units, which were built between 1978 and 1980. Seven units of the total 53 ordered are being configured as battery electric multiple units (BEMUs) for use on non-electrified lines, being designated subclass 777/1.

  1. ^ Cite error: The named reference dday was invoked but never defined (see the help page).
  2. ^ Cite error: The named reference bbcdday was invoked but never defined (see the help page).
  3. ^ a b Metro Class 777 IPEMU – Merseytravel, Liverpool (UK) (PDF). Bussnang: Stadler Rail Group. 6 September 2022. MMER_IPEMU0922e. Archived (PDF) from the original on 28 December 2022. Retrieved 28 December 2022.
  4. ^ Cite error: The named reference trial gazette was invoked but never defined (see the help page).
  5. ^ a b "ORR authorises Merseyrail and SWR fleets". Rail Magazine. No. 938. Peterborough. 25 August 2021. p. 12.
  6. ^ "Merseyrail '777s' are OK for commuters". Rail Magazine. No. 988. 26 July 2023. pp. 56–61.
  7. ^ a b Prosser, Ian (15 July 2021). "The Railways (Interoperability) Regulations 2011, as amended – First authorisation of Class 777 Mersey electric multiple units numbered 777001–7770052" (PDF). Letter to Pedro Martinez (Stadler Rail Valencia SAU). London: Office of Rail and Road. UK/51/2021/0051. Archived (PDF) from the original on 27 August 2021. Retrieved 19 January 2022.
  8. ^ "Stadler to Display UK's First Independently Powered Electric Multiple Unit (IPEMU) at InnoTrans". Bussnang: Stadler Rail Group. 20 September 2022. Archived from the original on 28 December 2022. Retrieved 28 December 2022.
  9. ^ "Stadler Rail Metro for Merseyrail Liverpool". Wiener Neudorf: Traktionssysteme Austria. Retrieved 28 January 2023.
  10. ^ Metro Merseyrail EMU – Merseytravel, Liverpool (UK) (PDF). Bussnang: Stadler Rail Group. 6 August 2018. MMER1216e. Archived (PDF) from the original on 15 January 2020. Retrieved 20 January 2022.


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