British Rail Class 401 information

SR 2-BIL
British Rail Class 401
SR 2-BIL; British Rail Class 401
	2090 at London Waterloo in 1986
In service	1935–1971
Manufacturer	Southern Railway
Order no.	HO806; HO898; HO903; HO948; HO949;
Built at	Eastleigh railway works (bodies); Lancing Works (underframes);
Constructed	1935–1938
Entered service	1935
Number built	152 sets
Number preserved	1 set
Number scrapped	151 sets
Formation	2-car sets:; DMBTL-DTCL
Diagram	2111 (DMBTL); 2115 (DMBTL); 2700 (DTCL); 2701 (DTCL);
Design code	2-BIL
Fleet numbers	2001–2152
Capacity	52S (MBSL); 24F/32S (DTCL);
Operators	Southern Railway; British Railways;
Specifications
Car body construction	Steel-panelled wooden-framed body on steel underframe
Train length	129 ft 6 in (39.47 m)
Car length	62 ft 6 in (19.05 m)
Width	9 ft 3 in (2.82 m)
Doors	Slam
Maximum speed	75 mph (121 km/h)
Weight	74 long tons 15 cwt (75.9 t) (total); 43 long tons 10 cwt (44.2 t) (MBSL); 31 long tons 5 cwt (31.8 t) (DTCL);
Traction motors	2 × MV339; 2 × EE507C (MV339 replacements); 2 × EE339 (as built);
Power output	2x 275 hp (205 kW) (as built); 550 hp (410 kW) (total, as built) ; 2 x 250 hp (186 kW) (replacement); 500 hp (373 kW) (total, replacement) name=TRC1 />
Electric system(s)	750 V DC Third rail
Current collector(s)	Contact shoe
UIC classification	Bo′2′+2′2′
Braking system(s)	Automatic air
Coupling system	Screw
Multiple working	SR Standard system (1936 Type)
Track gauge	4 ft 8+1⁄2 in (1,435 mm)

The Southern Railway (SR) gave the designation 2-BIL to the DC third rail electric multiple units built during the 1930s to work long-distance semi-fast services on the newly electrified lines from London to Eastbourne, Portsmouth and Reading. This type of unit survived long enough in British Rail ownership to be allocated TOPS Class 401.

^ "2-car units for main line semi-fast and stopping services (2 Bil)". Southern Electric Group. Archived from the original on 4 December 2013. Retrieved 29 September 2013.
^ ^a ^b ^c ^d ^e ^f Longworth 2015, pp. 38–40, 213–215, 240–242
^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ "Class 401". The Railway Centre. Archived from the original on 14 October 2007. Retrieved 25 February 2016.{{cite web}}: CS1 maint: unfit URL (link)

Cite error: There are <ref group=nb> tags on this page, but the references will not show without a {{reflist|group=nb}} template (see the help page).

[1] "2-car units for main line semi-fast and stopping services (2 Bil)". Southern Electric Group. Archived from the original on 4 December 2013. Retrieved 29 September 2013.

[Longworth-2] ^ ^a ^b ^c ^d ^e ^f Longworth 2015, pp. 38–40, 213–215, 240–242

[TRC1-3] ^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ "Class 401". The Railway Centre. Archived from the original on 14 October 2007. Retrieved 25 February 2016.{{cite web}}: CS1 maint: unfit URL (link)

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SR 2-BIL British Rail Class 401
2090 at London Waterloo in 1986
In service	1935–1971^[1]
Manufacturer	Southern Railway
Order no.	HO806 HO898 HO903 HO948 HO949^[2]
Built at	Eastleigh railway works (bodies) Lancing Works (underframes)^[3]
Constructed	1935–1938
Entered service	1935^[2]
Number built	152 sets
Number preserved	1 set
Number scrapped	151 sets
Formation	2-car sets: DMBTL-DTCL^[2]
Diagram	2111 (DMBTL) 2115 (DMBTL) 2700 (DTCL) 2701 (DTCL)^[2]
Design code	2-BIL
Fleet numbers	2001–2152
Capacity	52S (MBSL)^{[nb 1]} 24F/32S (DTCL)^[3]
Operators	Southern Railway British Railways
Specifications
Car body construction	Steel-panelled wooden-framed body on steel underframe
Train length	129 ft 6 in (39.47 m)
Car length	62 ft 6 in (19.05 m)^[2]
Width	9 ft 3 in (2.82 m)^[3]
Doors	Slam^[3]
Maximum speed	75 mph (121 km/h)^[3]
Weight	74 long tons 15 cwt (75.9 t) (total) 43 long tons 10 cwt (44.2 t) (MBSL) 31 long tons 5 cwt (31.8 t) (DTCL)^[3]
Traction motors	2 × MV339 2 × EE507C (MV339 replacements) 2 × EE339 (as built)^[2]
Power output	2x 275 hp (205 kW) (as built) 550 hp (410 kW) (total, as built)^[3] 2 x 250 hp (186 kW) (replacement) 500 hp (373 kW) (total, replacement) name=TRC1 />
Electric system(s)	750 V DC Third rail^[3]
Current collector(s)	Contact shoe
UIC classification	Bo′2′+2′2′
Braking system(s)	Automatic air
Coupling system	Screw^[3]
Multiple working	SR Standard system (1936 Type)
Track gauge	4 ft 8+1⁄2 in (1,435 mm)