British Rail Class 507 electric multiple units were built by BREL at York works from 1978 to 1979. They were the third variety of British Rail's then-standard 1972 design for suburban EMUs, which eventually encompassed 755 vehicles and five Classes (Class 313/314/315/507/508). The 507s were the first variant to be 750V DC third rail only. They have worked on the Merseyrail network from new, and continue to do so, now refurbished by Alstom's Eastleigh Works.
Quick facts In service, Manufacturer ...
| British Rail Class 507 |
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 |
 The interior of a refurbished Class 507 unit |
| In service | 1 November 1978 – 28 November 2024 |
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| Manufacturer | British Rail Engineering Limited |
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| Order no. | - 30906 (BDMSO vehicles)
- 30907 (TSO vehicles)
- 30908 (DMSO vehicles)[1]
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| Built at | Holgate Road Works, York |
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| Family name | BREL 1972 |
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| Replaced | |
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| Constructed | 1978–1980[1] |
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| Refurbished | 2002–2005 at Alstom Eastleigh |
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| Scrapped | 2023-present |
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| Number built | 33 |
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| Number in service | 0 |
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| Number preserved | 1 |
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| Number scrapped | 31 |
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| Successor | Class 777 |
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| Formation | - 3 cars per unit:
- BDMSO-TSO-DMSO[1]
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| Diagram | - BDMSO vehicles: EI202
- TSO vehicles: EH205
- DMSO vehicles: EA201[1]
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| Fleet numbers | 507001–507033[1] |
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| Capacity | - As built: 234 seats
- As modified: 222 seats
- As refurbished: 192 seats
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| Owners | Angel Trains[2] |
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| Operators | Merseyrail |
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| Depots | - Current:
- Birkenhead North (Wirral)
- Kirkdale (Liverpool)
- Former:
- Hall Road (Blundellsands)[1][3]
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| Lines served | |
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| Car body construction | Steel underframe and body frame, aluminium body and roof |
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| Car length | - DM vehs.: 19.800 m (64 ft 11.5 in)
- Trailers: 19.920 m (65 ft 4.3 in)
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| Width | 2.820 m (9 ft 3.0 in) |
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| Height | 3.582 m (11 ft 9.0 in) |
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| Floor height | 1.146 m (3 ft 9.1 in) |
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| Doors | Double-leaf pocket sliding, each 1.288 m (4 ft 2.7 in) wide (2 per side per car) |
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| Wheelbase | Over bogie centres:
14.170 m (46 ft 5.9 in) |
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| Maximum speed | 75 mph (120 km/h) |
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| Weight | - BDMSO vehs.: 37.06 t (36.47 LT; 40.85 ST)
- TSO vehs.: 25.60 t (25.20 LT; 28.22 ST)
- DMSO vehs.: 35.62 t (35.06 LT; 39.26 ST)[1]
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| Traction motors | 8 × GEC G310AZ
(82 kW (110 hp) each, 4 per motor car) |
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| Power output | 656 kW (880 hp) |
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| HVAC | Electric heating (ducted warm air) |
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| Electric system(s) | 600–750 V DC third rail[1] |
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| Current collector(s) | Contact shoe |
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| UIC classification | Bo′Bo′+2′2′+Bo′Bo′ |
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| Bogies | BREL BX1[1] |
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| Minimum turning radius | 70.4 m (231 ft 0 in) |
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| Braking system(s) | Electro-pneumatic (disc) and rheostatic[1] |
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| Safety system(s) | |
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| Coupling system | Tightlock |
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| Multiple working | Within class, and with Class 508 |
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| Track gauge | 1,435 mm (4 ft 8 1⁄2 in) standard gauge |
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| Specifications as at August 1982[4] except where otherwise noted. |
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