Seibu 20000 series


The Seibu 20000 series is an electric multiple unit train type operated by the private railway operator Seibu Railway on commuter services in the Tokyo area of Japan since 2000.

Fleet

, the fleet consists of eight ten-car sets and eight eight-car sets, based at Kotesashi, Minami-Iriso, Musashigaoka, and Tamagawa-Josui depots for use on Seibu Shinjuku Line and Seibu Ikebukuro Line services.

Formations

8-car sets

The eight-car sets are formed as shown below with four motored cars and four unpowered trailer cars, and car 8 at the Shinjuku/Ikebukuro end.
Car No.12345678
DesignationTc1M1M2T1T3M5M6Tc2
Numbering2015x2025x2035x2045x2075x2085x2095x2005x

The M1 and M5 cars are each equipped with one single-arm pantograph.

10-car sets

The eight ten-car sets are formed as shown below with five motored cars and five unpowered trailer cars, and car 10 at the Shinjuku/Ikebukuro end.
Car No.12345678910
DesignationTc1M1M2T1M3T2T3M5M6Tc2
Numbering2010x2020x2030x2040x2050x2060x2070x2080x2090x2000x

The M1, M3, and M5 cars are each equipped with one single-arm pantograph.

Interior

Seating consists of sculpted longitudinal bench seating throughout, with an individual seat width of per person. Wheelchair spaces are provided in the two outermost cars at each end. Priority seats are provided at the end of each car. Scrolling LED passenger information displays are provided above the doorways.

History

The first train was built in 1999, undergoing test running before entering revenue service in 2000.
In August 2015, set 20101 was modified with full-colour LED destination indicators replacing the original three-colour LED type.

Livery variations

Galaxy Express 999

From 8 October 2016, eight-car set 20158 operated in a special Galaxy Express 999 vinyl wrapping livery. It is scheduled to operate in this livery until March 2019.

L-train

From 15 January 2018, two ten-car sets, 20104 and 20105, are scheduled to operate in a special "L-train" livery consisting of the Saitama Seibu Lions baseball team colour of dark blue with Seibu Lions logos.