E531 series information

E531 series
E531 series
	An E531 series train on the Joban Line (in March 2019 Between Matsudo Station and Kanamachi Station)
In service	2005–present
Manufacturer	Tokyu Car Corporation, Kawasaki Heavy Industries, JR East, J-TREC
Replaced	403 series, 415 series, some E501 series
Constructed	2005–2020, 2024
Entered service	9 July 2005
Number built	461 vehicles 26 × 10-car; 40 × 5-car; 1 × end car; ;
Number in service	460 vehicles
Formation	5/10 cars per trainset
Fleet numbers	K401–K426 (10-car sets); K451–K483 (standard 5-car sets); K551–K557 (cold-weather 5-car sets);
Operators	JR East
Depots	Katsuta
Lines served	■ Ueno–Tokyo Line; ■ JJ Jōban Line; ■ Mito Line; ■ Tōhoku Main Line;
Specifications
Car body construction	Stainless steel
Car length	20,000 mm (65 ft 7 in)
Width	2,950 mm (9 ft 8 in)
Floor height	1,130 mm (3 ft 8 in)
Doors	4 pairs per side
Maximum speed	130 km/h (81 mph)
Traction system	PWM 2-level IGBT–VVVF (Hitachi)
Traction motors	4 × 140 kW (190 hp) 3-phase AC induction motor (Hitachi)
Power output	1.12 MW (1,500 hp) (5-car sets); 2.24 MW (3,000 hp) (10-car sets)
Acceleration	2.5 km/(h⋅s) (1.6 mph/s)
Deceleration	4.2 km/(h⋅s) (2.6 mph/s)
Electric system(s)	1,500 V DC and 20 kV 50 Hz AC, both from overhead catenary
Current collector(s)	PS37A single-arm pantograph
Bogies	DT71 (motored); TR255 (trailer)
Braking system(s)	Regenerative brake
Safety system(s)	ATS-SN, ATS-P, ATS-Ps
Track gauge	1,067 mm (3 ft 6 in)

The E531 series (Japanese: E531系, Hepburn: E531-kei) is an electric multiple unit (EMU) train type operated by East Japan Railway Company (JR East) in Japan.^[1] It was introduced by JR East on 9 July 2005 to replace the aging 403 and 415 series EMUs running on the Jōban Line from Ueno Station in Tokyo. The stock is a dual-voltage (1,500 V DC & 20 kV AC) development of the DC-only E231 series suburban EMU design, and can run at speeds of up to 130 km/h (81 mph) in service.^[2]

^ JR全車輌ハンドブック2009 [JR Rolling Stock Handbook 2009]. Japan: Neko Publishing. 2009. ISBN 978-4-7770-0836-0.
^ "E531系一般形交直流電車の概要" [E531 series AC/DC EMU outline]. Railway Journal. 39 (465): 102. July 2005.

[neko2009-1] JR全車輌ハンドブック2009 [JR Rolling Stock Handbook 2009]. Japan: Neko Publishing. 2009. ISBN 978-4-7770-0836-0.

[journal465-2] "E531系一般形交直流電車の概要" [E531 series AC/DC EMU outline]. Railway Journal. 39 (465): 102. July 2005.

E531 series information

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E531 series
An E531 series train on the Joban Line (in March 2019 Between Matsudo Station and Kanamachi Station)
In service	2005–present
Manufacturer	Tokyu Car Corporation, Kawasaki Heavy Industries, JR East, J-TREC
Replaced	403 series, 415 series, some E501 series
Constructed	2005–2020, 2024
Entered service	9 July 2005
Number built	461 vehicles 26 × 10-car 40 × 5-car 1 × end car
Number in service	460 vehicles
Formation	5/10 cars per trainset
Fleet numbers	K401–K426 (10-car sets) K451–K483 (standard 5-car sets) K551–K557 (cold-weather 5-car sets)
Operators	JR East
Depots	Katsuta
Lines served	■ Ueno–Tokyo Line ■ JJ Jōban Line ■ Mito Line ■ Tōhoku Main Line
Specifications
Car body construction	Stainless steel
Car length	20,000 mm (65 ft 7 in)
Width	2,950 mm (9 ft 8 in)
Floor height	1,130 mm (3 ft 8 in)
Doors	4 pairs per side
Maximum speed	130 km/h (81 mph)
Traction system	PWM 2-level IGBT–VVVF (Hitachi)
Traction motors	4 × 140 kW (190 hp) 3-phase AC induction motor (Hitachi)
Power output	1.12 MW (1,500 hp) (5-car sets) 2.24 MW (3,000 hp) (10-car sets)
Acceleration	2.5 km/(h⋅s) (1.6 mph/s)
Deceleration	4.2 km/(h⋅s) (2.6 mph/s)
Electric system(s)	1,500 V DC and 20 kV 50 Hz AC, both from overhead catenary
Current collector(s)	PS37A single-arm pantograph
Bogies	DT71 (motored) TR255 (trailer)
Braking system(s)	Regenerative brake
Safety system(s)	ATS-SN, ATS-P, ATS-Ps
Track gauge	1,067 mm (3 ft 6 in)