Sotetsu 7000 series

The Sotetsu 7000 series (相鉄7000系) and Sotetsu New 7000 series (相鉄新7000系) were DC electric multiple unit (EMU) commuter train types operated by Sagami Railway (Sotetsu) in Kanagawa Prefecture, Japan. They were designed to operate as eight-car or ten-car sets.

Sotetsu 7000 and new 7000 series
New 7000 series EMU
In service1975–2020
ManufacturerHitachi
Number built140 cars
Number in service4 cars
Number scrapped136 cars
Formation4, 8 or 10 cars per set
Operator(s)Sotetsu
Depot(s)Kashiwadai
Specifications
Car body constructionAluminum
Car length20 m
Width2800 mm
Doors4 pairs per side
Maximum speed110 km/h (70 mph)
Acceleration2.5 km/h/s
Electric system(s)1,500 V DC
Current collection methodOverhead
BogiesHitachi KH series
Braking system(s)Hitachi HSC
Safety system(s)ATS-P
Track gauge1,067 mm (3 ft 6 in)

7000 series
7000 series (right) and 5000 series EMUs

History

Built from 1975 by Hitachi in Yamaguchi Prefecture. A total of 80 cars were built, and withdrawn by 2019. Four cars were converted in 2006 and numbered 701–704, and used as measurement train as well as shunter.

Body

They had lightweight aluminum bodies, like the 5000 series and 2100 series EMUs.

Initially, 7700 (Tc), 7500 (Tc) and 7100 (M) cars were built. From 1983, 7000 (Mc) and 7600(T) cars were added to form 10-car and 8-car sets.

New 7000 series

History

From 1986, the front-end design of the 7000 series was changed. To differentiate between the original 7000-series cars, those with the new design are referred to as the new 7000 series (新7000系). Some EMUs in this series use variable-frequency drive motors.

Operations

A total of 60 cars were built and initially operated only as ten-car sets, but some fleets were shortened to 8-car from 2006. All fleets have been replaced with 20000 series by 2020.

Refurbishment
New 7000 series in revised livery

The 7000 series and New 7000 series have been refurbished, since 2008, with the following changes.

Safety systems

The company plans to build a new line linking to East Japan Railway Company (JR East), and so Sotetsu began to change the original safety system to the standard JR type.

Formations

Key
  • M: Motored cars
  • T: Trailer cars
  • c: Cab cars
  • CONT: Motor control equipment
  • MG: Motor-generator
  • CP: Reciproating compressor
  • PT: Pantograph

10-car sets
Car No.12345678910
Designation Mc1 M2 Tc2 M1 M2 Tc1 Tc2 M1 M2 Tc1
Numbering MoHa 7000 MoHa 7100 KuHa 7700 MoHa 7100 MoHa 7100 KuHa 7500[* 1] KuHa 7700[* 1] MoHa 7100 MoHa 7100 KuHa 7500
Equipment Cont, PTMG,CP,PT Cont, PTMG,CP,PT  Cont, PT-

8-car sets
Car No. 1 2 3 4 5 6 7 8
Designation Tc2 M1 M2 Tc1 Tc2 M1 M2 Tc1
Numbering MoHa 7100 MoHa 7100 MoHa 7100 KuHa 7500[* 1] KuHa 7700[* 1] MoHa 7100 MoHa 7100 KuHa 7500
Equipment  Cont, PTMG,CP,PT  Cont, PTMG,CP,PT 
  1. SaHa 7600 in some sets

New 7000 series
Car No. 1 2 3 4 5 6 7 8 9 10
Designation Tc2 M1 M2 M1 M2 Tc1 Tc2 M1 M2 Tc1
Numbering KuHa 7700 MoHa 7100 MoHa 7100 MoHa 7100 MoHa 7100 KuHa 7500 KuHa 7700 MoHa 7100 MoHa 7100 KuHa 7500
Equipment  Cont, PTMG,CP,PTCont, PTMG,CP,PT  Cont, PTMG,CP,PT 

VFD control set
Car No. 1 2 3 4 5 6 7 8 9 10
Designation Tc2 M T2 M T1 T2 M T1 M Tc1
Numbering KuHa 7750 MoHa 7350 SaHa 7650 MoHa 7350 SaHa 7650 SaHa 7650 MoHa 7350 SaHa 7650 MoHa 7350 KuHa 7550
Equipment MG, CPCont, PT Cont, PTMG, CP Cont, PTMG, CPCont, PT 
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