Sotetsu 10000 series

The Sotetsu 10000 series (相鉄10000系) is an electric multiple unit (EMU) commuter train type operated by the private railway operator Sagami Railway (Sotetsu) in Japan.

History
Entering service on 24 February 2002, the trains are based on JR East's E231 series design, and were built to replace ageing 5000, 2100, and 6000 series trains. The 10000 series were constructed by Tokyu Car Corporation in Yokohama and JR East's Niitsu factory. A total of 70 cars were built, formed as sets.

Formations
, the fleet consists of three ten-car sets and five eight-car sets, formed as follows.

Key

 * <: Current collection device (single-arm pantograph)
 * VVVF: Variable frequency drive
 * SIV: Static inverter
 * CP: Compressor
 * Bold/italic number: Fleet number

Refurbishment
In 2020, 10-car set 10701 received restyled car ends, an all-over "Yokohama Navy Blue" livery, and a renovated interior. Sets 10702 and 10703 received a less extensive treatment, which only affected front end styling and onboard equipment.

Sotetsu announced in April 2024 that three further sets will be refurbished.