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British Rail Class 314

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British Rail Class 314
First ScotRail Class 314 at Patterton in 2011
Interior of a ScotRail refurbished Class 314 unit in August 2018
In service1979–2019
ManufacturerBritish Rail Engineering Limited
Built atHolgate Road Works, York
Family nameBREL 1972
Constructed1979
Entered service1979
Refurbishment
  • 2006–2007
  • 2009–2010
  • 2011–2013
Scrapped2019–2020
Number built16
Number preserved1 (Converted into Class 614)
Number scrapped15
Successor
Formation3 cars per unit:
DMSO-PTSO-DMSO
Diagram
  • DMSO vehicles: EA206
  • PTSO vehicles: EH211
Fleet numbers314201–314216
Capacity212 seats
Operator(s)
Depot(s)
Line(s) served
Specifications
Car body constructionSteel underframe with aluminium body and roof
Car length
  • DM vehs.: 19.800 m (64 ft 11.5 in)
  • Trailers: 19.920 m (65 ft 4.3 in)
Width2.820 m (9 ft 3.0 in)
Height3.582 m (11 ft 9.0 in)
Floor height1.146 m (3 ft 9.1 in)
DoorsDouble-leaf pocket sliding, each 1.288 m (4 ft 2.7 in) wide (2 per side per car)
WheelbaseOver bogie centres:
14.170 m (46 ft 5.9 in)
Maximum speed70 mph (113 km/h)
Weight
  • DMSO: 34.6 t (34.1 long tons)
  • PTSO: 33.0 t (32.5 long tons)
  • Total: 102.2 t (100.6 long tons)
Traction motors
  • 8 total; 4 per DMSO vehicle
  • (GEC G310AZ or Brush TM61-53, interchangeably)
Power output660 kW (880 hp)
Electric system(s)Template:25 kV 50 Hz overhead
Current collection methodPantograph
UIC classificationBo′Bo′+2′2′+Bo′Bo′
BogiesBREL BX1
Minimum turning radius70.4 m (231 ft 0 in)
Braking system(s)Electro-pneumatic (disc)
Safety system(s)
Coupling systemTightlock
Multiple workingWithin class
Track gauge1,435 mm (4 ft 8 12 in) standard gauge
Notes
Specifications as at August 1982[1] except where otherwise noted.

British Rail Class 314 alternating current (AC) electric multiple units (EMU) were built by BREL at York works from 1978 to 1979. They were the second 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). Able to operate from 25 kV overhead line current collection only, the fleet worked outer-suburban services on the Strathclyde Passenger Transport rail network in Central Scotland.

References[change | change source]

  1. Vehicle Diagram Book No. 210 for Electric Multiple Units (including A.P.T.) (PDF). Derby: Mechanical & Electrical Engineering Department, British Railways Board. August 1982. EA206, EH211 (in work pp. 14–15, 280–281). Archived from the original (PDF) on 21 January 2015. Retrieved 24 May 2023 – via Barrowmore MRG.