E235 series

E235 series
E235 series
	An E235-0 series train on the Yamanote Line in May 2021
Manufacturer	J-TREC
Built at	Akiha-ku, Niigata; Kanazawa-ku, Yokohama (Green cars);
Family name	sustina
Replaced	E217 series (Sōbu/Yokosuka Lines)
Constructed	2015–present
Entered service	30 November 2015
Number under construction	513 vehicles
Number built	782 vehicles (as of 13 May 2022)
Number in service	778 vehicles (79 sets)
Formation	11/4 cars per trainset
Operators	JR East
Lines served	JY Yamanote Line; JO Yokosuka Line / Sōbu Line (Rapid);
Specifications
Car body construction	Stainless steel
Car length	20 m (65 ft 7 in) (including couplers); 19.57 m (64 ft 2 in) (end cars); 19.5 m (64 ft 0 in) (intermediate cars);
Width	2.95 m (9 ft 8 in)
Height	3.62 m (11 ft 11 in)
Floor height	1.13 m (3 ft 8 in)
Doors	4 pairs per side; 2 doors per side (Green cars);
Maximum speed	120 km/h (75 mph)
Traction system	PWM 2-level SiC–VVVF (Mitsubishi)
Traction motors	MT79 totally enclosed fan cooled 3-phase AC induction motor
Transmission	7.07:1 (99:14) gear ratio
Acceleration	3.0 km/(h⋅s) (1.9 mph/s)
Deceleration	4.2 km/(h⋅s) (2.6 mph/s)
Electric system(s)	1,500 V DC overhead catenary
Current collector(s)	Pantograph
Bogies	DT80, TR255, TR264
Safety system(s)	ATS-P, D-ATC
Track gauge	1,067 mm (3 ft 6 in)

The E235 series (E235系, E235-kei) is a DC electric multiple unit (EMU) commuter and suburban train type operated by East Japan Railway Company (JR East). The commuter variant was introduced on Yamanote Line services in November 2015, and the suburban variant entered service on the Sōbu Rapid and Yokosuka Lines on 21 December 2020.

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