# 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.$^{:28–29}$ 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

As of 1 April 2016, the fleet consists of three 10-car sets and five 8-car sets, formed as follows.

### 10-car sets

Sets 10701, 10702, and 10708 :
| | ← Yokohama Ebina, Shonandai → | ← Yokohama Ebina, Shonandai → | ← Yokohama Ebina, Shonandai → | ← Yokohama Ebina, Shonandai → | ← Yokohama Ebina, Shonandai → | ← Yokohama Ebina, Shonandai → | ← Yokohama Ebina, Shonandai → | ← Yokohama Ebina, Shonandai → | ← Yokohama Ebina, Shonandai → | ← Yokohama Ebina, Shonandai → |
| Car No. | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| Designation | 10700 (Tc2) | 10200 (M2) | 10100 (M1) | 10600 (T1) | 10300 (M3) | 10600 (T2) | 10600 (T1) | 10200 (M2) | 10100 (M1) | 10500 (Tc1) |
| Equipment | | SIV CP | VVVF | | VVVF | | | SIV CP | VVVF | |
| Numbering | 10701 10702 10708 | 10201 10203 10215 | 10101 10103 10115 | 10601 10604 10617 | 10301 10302 10303 | 10602 10605 10618 | 10603 10606 10619 | 10202 10204 10216 | 10102 10104 10116 | 10501 10502 10508 |
* Cars 3, 5, and 9 are each equipped with one single-arm pantograph.

### 8-car sets

Sets 10703 to 10707 :
| | ← Yokohama Ebina, Shonandai → | ← Yokohama Ebina, Shonandai → | ← Yokohama Ebina, Shonandai → | ← Yokohama Ebina, Shonandai → | ← Yokohama Ebina, Shonandai → | ← Yokohama Ebina, Shonandai → | ← Yokohama Ebina, Shonandai → | ← Yokohama Ebina, Shonandai → |
| Car No. | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| Designation | 10700 (Tc2) | 10200 (M2) | 10100 (M1) | 10600 (T2) | 10600 (T1) | 10200 (M2) | 10100 (M1) | 10500 (Tc1) |
| Equipment | | SIV CP | VVVF | | | SIV CP | VVVF | |
| Numbering | 10703 10704 10705 10706 10707 | 10205 10207 10209 10211 10213 | 10105 10107 10109 10111 10113 | 10607 10609 10611 10613 10615 | 10608 10610 10612 10614 10616 | 10206 10208 10210 10212 10214 | 10106 10108 10110 10112 10114 | 10503 10504 10505 10506 10507 |
* Cars 2 and 7 are each equipped with one single-arm pantograph.

### Key

* VVVF: Variable frequency drive
* SIV: Static inverter
* CP: Compressor

## Interior

* Interior view

## Special liveries

In April 2024, Sotetsu announced that two 10000 series sets would receive retro-styled liveries: set 10705 received a "Nostalgic Wakakusa" livery based on the fleet's original livery, and set 10708 received a "Classic Red Stripe" livery based on Sotetsu's legacy red livery. The two sets returned to revenue service on 18 May 2024, and they were scheduled to carry the liveries until November.
* Set 10705 with "Nostalgic Wakasuka" special livery, October 2024
* Set 10708 with "classic red stripe" special livery, November 2024

## Refurbishment

In 2020, 10-car set 10701 received restyled front ends, an all-over "Yokohama Navy Blue" livery, full-colour LED destination displays, 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.
* Set 10701 with "Yokohama Navy Blue" livery and restyled front end
* Set 10702 with restyled front end only
* Refurbished interior