British Rail Class 423

British Rail Class 423 (4 VEP)
British Rail Class 423 (4 VEP)
	Class 423/1 4 VEP 3427 at Eastleigh in 2001
In service	1967 – 26 November 2005
Manufacturer	British Rail
Order no.	30758 (DTCsoL, 76230-76269); 30759 (TSO, 70781-70800); 30760 (MBSO, 62121-62140); 30771 (DTCsoL, 76333-76402); 30772 (TSO, 70872-70906); 30773 (MBSO, 62182-62216); 30792 (DTCsoL, 76441-76540); 30793 (TSO, 70907-70956); 30794 (MBSO, 62217-62266); 30799 (DTCsoL, 76541-76560); 30800 (MBSO, 62267-62276); 30801 (TSO, 70957-70966); 30811 (DTCsoL, 76641-76716); 30812 (TSO, 70997-71034); 30813 (MBSO, 62317-62354); 30851 (MBSO, 62435-62475); 30852 (TSO, 71115-71155); 30853 (DTCsoL, 76861-76942);
Built at	York Works; Derby Works;
Number built	194
Formation	4 cars per trainset:; DTCsoL+MBSO+TSO+DTCsoL
Diagram	ED261 (MBSO); ED262 (MBSO); ED263 (MBSO, facelifted); ED266 (MBSO, facelifted); EE365 (DTCsoL); EE366 (DTCsoL); EE367 (DTCsoL); EE368 (DTCsoL); EE373 (DTCsoL, facelifted); EE281 (DCTsoL, modified); EH276 (TSO); EH278 (TSO); EH283 (TSO); EH291 (TSO, facelifted);
Fleet numbers	7701-7894 (sets, as built); (42)3001-(42)3194 (sets, 423/0); (42)3401-(42)3591 (sets, 423/1); (42)3801-(42)3812 (sets, 423/1); (42)3813-(42)3844 (sets, 423/8); (42)3901-(42)3919 (sets, 423/2); 76230-76942 (DTCsoL); 62121-62475 (MBSO); 70781-71155 (TSO);
Capacity	42F/280S (as built)
Operators	British Rail; InterCity; Network SouthEast; Connex South Eastern; South Eastern Trains; Connex South Central; Southern; South West Trains
Depots	Bournemouth; Brighton; East Wimbledon; Eastleigh; Fratton; Ramsgate;
Specifications
Car length	66 ft 7 in (20.29 m)
Width	9 ft 3 in (2.82 m)
Height	12 ft 9+1⁄4 in (3.893 m)
Doors	Hinged slam
Maximum speed	90 mph (145 km/h)
Weight	157.5 t (155.0 long tons; 173.6 short tons) (as built)
Traction motors	EE507
Power output	1,000 hp (750 kW)
Electric system(s)	750 V DC third rail
Current collector(s)	Contact shoe
Coupling system	Drop-head buckeye
Track gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge

The British Rail Class 423 (4 VEP), electric multiple unit passenger trains were mostly built by British Rail (BR) at York Works from 1967 to 1974, although the MBSOs and TSOs of the first 20, 7701-7720, were built at Derby Works. They have manually opening doors next to every seating row and were the last coaching stock built in this pattern for BR. They were mostly found working outer-suburban services in South London and rural services in Kent, Sussex and Hampshire, up to 2005 when they were finally replaced by Electrostar and Desiro units. The fleet had a working life of 38 years.

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