Sotetsu 12000 series
Sotetsu 12000 series on the Izumino Line in April 2019
In service	20 April 2019 – present
Manufacturer	J-TREC
Family name	Sustina S24 Series
Constructed	2018–2020
Number built	60 cars (6 sets)
Number in service	60 cars (6 sets)
Formation	10 cars per trainset
Capacity	1,552 total[1]
Operators	Sotetsu
Depots	Kashiwadai
Lines served	Sōtetsu Main Line Sōtetsu Izumino Line Sōtetsu Shin-Yokohama Line JA Saikyō Line JS Shōnan–Shinjuku Line
Specifications
Car body construction	Stainless steel
Doors	4 pairs per side
Maximum speed	120 km/h (75 mph)
Traction system	IGBT-VVVF
Power output	140 kW (188 hp) per motor[2]
Electric system(s)	1,500 V DC overhead lines
Current collector(s)	Pantograph
Safety system(s)	TASC,[3] ATACS[1]
Track gauge	1,067 mm (3 ft 6 in)

The Sotetsu 12000 series (相鉄12000系) is an electric multiple unit (EMU) train type operated by the private railway operator Sagami Railway (Sotetsu) in Japan. A total of six ten-car sets were built by Japan Transport Engineering Company (J-TREC) for use on Sōtetsu Shin-Yokohama Line services.^[4]

Formation

The trains are formed as ten-car sets. The sets are formed as shown below.^[2]

Cars 3 and 9 each have one single-arm pantograph, and car 5 has two.^[2]

Interior

The interior is based on that of the 20000 series^[5] and has LED lighting which adjusts automatically according to the time of day. Spaces for wheelchairs and strollers are also provided; they also feature surveillance cameras.^[6]

• 
  Driver's cab
• 
  Interior view
• 
  Priority seating with wheelchair/stroller space
• 
  LCD passenger information displays (left) and security camera (right)

Technical specifications

The 12000 series trains are built by J-TREC as part of their "Sustina S24 Series" design,^[3] and use VVVF-IGBT technology.^[5] They have stainless steel car bodies,^[7] which are painted in the "Yokohama Navy Blue" corporate livery.^[6] They also feature internal and external door buttons.^[1]

• 
  Door button (exterior)
• 
  Door button panel (interior)
• 
  Underside equipment

History

In April 2018, Sotetsu announced the introduction of a new train type for Sōtetsu JR Link Line services.^[8] The first set was delivered from J-TREC in December 2018.^[9] The trains entered revenue service on 20 April 2019.^[1] All six sets are scheduled to be introduced by the end of 2019.^{[5][needs update]}