E233 series

E233 series
A line-up of six different E233 series variants in October 2015 (left to right: Nambu Line E233-8000, Saikyo Line E233-7000, Yokohama Line E233-6000, Keiyō Line E233-5000, Tōkaidō,Takasaki,Utsunomiya Line E233-3000, Chūō Line E233-0 series)
Manufacturer	JR East, Kawasaki Heavy Industries, Tokyu Car Corporation, J-TREC
Replaced	201 series, 203 series, 205 series, 207-900 series, 209 series, 211 series, E331 series
Constructed	2006–present
Entered service	26 December 2006
Number in service	3,297 vehicles (as of June 2020[update])
Number scrapped	15 cars (total, accident damage)
Formation	4/5/6/8/10 cars per trainset
Operators	JR East
Depots	Kamakura, Kawagoe, Keiyō, Kōzu, Matsudo, Oyama, Toyoda, Saitama
Specifications
Car body construction	Stainless steel
Car length	20,000 mm (65 ft 7 in)
Width	2,950 mm (9 ft 8 in)
Doors	4 pairs per side
Maximum speed	120 km/h (75 mph)
Traction system	IGBT–VVVF (Mitsubishi Electric[a] or Hitachi[b])
Traction motors	Type MT75 3-phase AC induction motors
Acceleration	E233-0/-7000: 3 km/(h⋅s) (1.9 mph/s) -2000: 3.3 km/(h⋅s) (2.1 mph/s) -3000: 2.3 km/(h⋅s) (1.4 mph/s) Others: 2.5 km/(h⋅s) (1.6 mph/s)
Deceleration	5.2 km/(h⋅s) (3.2 mph/s) (emergency brake)
Electric system(s)	1,500 V DC (nominal) from overhead catenary
Braking system(s)	Regenerative brake
Safety system(s)	ATS-P, ATS-SN, ATC, Digital ATC
Coupling system	Shibata type
Multiple working	E231-1000 series (for E233-3000 series only)
Track gauge	1,067 mm (3 ft 6 in)

The E233 series (E233系) is a commuter and suburban electric multiple unit (EMU) train type developed by East Japan Railway Company (JR East) from the earlier E231 series and the E531 series design. The first train was introduced in December 2006 for use on the Chūō Line (Rapid), followed by the E233-1000 series variant in 2007 for use on the Keihin–Tōhoku and Negishi lines, the E233-3000 series outer-suburban variant in December 2007 for use on the Tōkaidō Main Line, and narrow-bodied E233-2000 series variant for Jōban Line and Tokyo Metro Chiyoda Line through services. Further variants were built for use on the Keiyō Line, Yokohama Line, Saikyō Line, and Nambu Line.
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