British Rail Class 411

British Rail Class 411
In service1956–2005
ManufacturerBR Eastleigh
Number built135 trainsets
Formationpower car + 2 trailer cars + power car
Operators
Specifications
Train length265 ft 8+12 in (80.988 m)
Width9 ft 3 in (2.82 m)
Height12 ft 6 in (3.81 m)
Maximum speed90 mph (140 km/h)
WeightTotal - 159.4 t (156.9 long tons; 175.7 short tons)
Traction motorsFour
Power output4 x 250 hp (190 kW)
total 1,000 hp (750 kW)
Electric system(s)750 V DC third rail
Current collector(s)Contact shoe
Coupling systemDrop-head buckeye[1]
Track gauge4 ft 8+12 in (1,435 mm) standard gauge

The British Rail Class 411 (4CEP) electric multiple units were built at Eastleigh works from 1956–63 for the newly electrified main lines in Kent. These units, which used the British Railways Mark 1 bodyshell, were based on the earlier Southern Railway 4 COR design, built in 1937. Variants of the class 411 design included the class 410 and class 412 4 BEP units, which contained a buffet car in place of a standard trailer. They were later used on services in Sussex and Hampshire; following the privatisation of British Rail in 1995, the units were used by the Connex South Central, Connex South Eastern and South West Trains franchises. They were replaced by Juniper, Desiro, and Electrostar units. The fleet's lifespan was 49 years. These units are the longest-lived BR Mark 1 EMUs.

  1. ^ System Data for Mechanical and Electrical Coupling of Rail Vehicles in support of GM/RT2190 (PDF). London: Rail Safety and Standards Board. 22 June 2011. p. 4. SD001. Archived from the original (PDF) on 1 April 2012. Retrieved 22 November 2022.