Sotetsu 20000 series


The Sotetsu 20000 series is an electric multiple unit commuter train type operated by the private railway operator Sagami Railway in Japan in the Tokyo area since February 2018. Ultimately intended to be used on through-running services between Sotetsu and Tokyu Corporation lines commencing in late fiscal 2022, the first train entered revenue service on 11 February 2018, replacing a 7000 series set.

Design

The fleet of ten-car 20000 series trainsets is being built by Hitachi at its Kasado Factory in Kudamatsu, Yamaguchi. Externally, the trains carry the "Yokohama Navy Blue" corporate livery introduced for refurbished 9000 series trains.

Formation

The trains are formed as ten-car sets, as follows, with five motored cars and five non-powered trailer cars, and car 1 at the Yokohama end.
Car No.12345678910
DesignationTc2M1T2M2M3T2M4T3M5Tc1
Numbering2010x2020x2030x2040x2050x2060x20710x2080x2090x2000x
Weight 29.931.729.831.131.226.931.729.131.130.0
Capacity 45/13351/14451/14351/14351/14351/14351/14351/14351/14345/133

Interior

Passenger accommodation consists of longitudinal bench seating with grey moquette seat covers. Each car includes a space for wheelchairs and pushchairs.
The colour temperature of the interior LED lighting is adjusted automatically according to time of day and season as follows.
SeasonTime of dayColour temperature Intensity -
Spring
Early morning02:01:00 - 06:59:59 440090
Morning peak07:00:00 - 09:59:59 500090-
Daytime10:00:00 - 15:59:59 440090-
Evening16:00:00 - 17:59:59 440090-
Night18:00:00 - 02:00:59 3000100-
Summer
Early morning02:01:00 - 06:59:59 500090
Morning peak07:00:00 - 09:59:59 500090-
Daytime10:00:00 - 15:59:59 500090-
Evening16:00:00 - 17:59:59 440090-
Night18:00:00 - 02:00:59 3000100-
Autumn
Early morning02:01:00 - 06:59:59 440090
Morning peak07:00:00 - 09:59:59 440090-
Daytime10:00:00 - 15:59:59 440090-
Evening16:00:00 - 17:59:59 3800100-
Night18:00:00 - 02:00:59 3000100-
Winter
Early morning02:01:00 - 06:59:59 3300100
Morning peak07:00:00 - 09:59:59 3800100-
Daytime10:00:00 - 15:59:59 440090-
Evening16:00:00 - 17:59:59 440090-
Night18:00:00 - 02:00:59 3000100-

History

Details of the new trains were officially announced in June 2017. The first train set was delivered from the Hitachi factory in Kudamatsu, Yamaguchi, in late July 2017.
Originally scheduled to enter revenue service in December 2017, scheduled service entry was subsequently postponed until 11 February 2018.