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Class 313

Sixty-four three-car units built by BREL at York in 1976-77 for the Great Northern suburban services out of King's Cross and Moorgate, the first of BR's second-generation EMUs on the PEP design. They took 25 kV from the overhead out of King's Cross and 750 V from a third rail in the tunnels to Moorgate. Some later worked the North London lines and out of Euston; the last ran on Southern's Coastway services around Brighton until 2023.

Class 313, schematic side elevation, 3 cars
Class 313, schematic side elevation, 3 cars, in operation: pantographs raised to a contact wire at 4.7 mcontact wire 15 ft 5 in (4.7 m)
199 ft (60.57 m) over couplers

Class 313 · schematic drawing GB Trains · gbtrains.uk/stock/313/ · CC BY 4.0

Schematic side elevation of a full train, drawn from the dimensions below. In BR's blue and grey, as 313201 carried it from 2019 for the class's last years (the livery the units were built in, reapplied): blue, a grey band along the windows between the doorways, the passenger doors grey, the cab's front and corners yellow, an orange line along the cantrail; coloured from photographs, approximate. Branding left out: the BR arrow, the unit and car numbers and the farewell headboard. In operation: the pantograph raised to a contact wire 15 ft 5 in (4.7 m) above the rail, Network Rail's normal height (Network Rail, A Guide to Overhead Electrification, 2015; one wire, schematic). Drawn at 10 px per metre. Download SVG Download SVG · Use this drawing

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Liveries 1

The same measured train in each livery, each drawn from a cited source. The drawing above shows the largest fleet’s.

Former liveries 3

Compare with the Class 142 Pacer and the Class 40 →

Type
Electric multiple unit (25 kV AC overhead and 750 V DC third rail)
Builder
British Rail Engineering Limited, York
Built
1976-1977
In service
1976–2023
Formation
3 cars: a driving motor second, the pantograph trailer second, a battery driving motor second
Trains in fleet
64
Top speed
75 mph (121 km/h)
Power
25 kV AC overhead (the pantograph on the middle car) and 750 V DC third rail; four 110 hp GEC G310AZ traction motors (Book 210's data page) · how it works
Bogies
BREL BX1 motor bogies with third-rail shoe gear (Class 313); BREL BX1 trailer bogies (Class 313)
Train length
199 ft (60.57 m)
Car height
11 ft 9 in (3.582 m)
Car width
9 ft 3 in (2.82 m)
Profile
main-line
Status
Withdrawn: the last ran with Southern in 2023; 313054 and 313201 are preserved.

unverified Some of these figures haven’t yet been checked against an official source or a published history. What’s in doubt ↓

Car types

CodeCarLengthDoors per side
DMSDriving motor second (EA204)66 ft 4 in20.225 m
PTSPantograph trailer second (EH210)66 ft 0 in20.12 m
BDMSBattery driving motor second (EI201)66 ft 4 in20.225 m

Sources

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Show the 14 sources from Wikimedia Commons, British Railways Board, Mechanical & Electrical Engineering Department, Network Rail
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