Seibu 401 series

The Seibu 401 series (西武401系) is an electric multiple unit (EMU) train type operated by the private railway operator Seibu Railway on commuter services in the Tokyo area of Japan from 1978 to 1997.

Seibu 401/411 series
A Jōshin 150 series train Converted From Seibu 401 Series
In service1968-1997 (Seibu Railway)
ManufacturerSeibu Tokorozawa Railway Works
Entered service1968 (Seibu Railway as 411 Series)
1990 (Sangi Railway)
1997 (Ohmi Railway 820 Series)
1998 (Ohmi Railway 700 And 800 Series)
Refurbished1978
Number built38 Cars
Number scrapped2 Cars (Ohmi Railway 700 Series)
Formation2 cars per trainset
Operator(s)Seibu Railway
Sangi Railway
Jōshin Electric Railway
Ohmi Railway
Line(s) servedSeibu Shinjuku Line, Seibu Tamagawa Line, Sangi Line, Jōshin Dentetsu Jōshin Line
Specifications
Car body constructionSteel
Car length20 m (65 ft 7 in)
Doors3 pairs per side
Maximum speed100 km/h (60 mph)
Traction systemResistor control
Traction motorsMT15E (411 Series)
HS-836-Frb
HS-836-Krb
TDK-8090-A (401 Series)
Power output120kW
Electric system(s)1,500 V DC
Current collection methodoverhead catenary
Safety system(s)Seibu ATS
Multiple workingAll Seibu 3-Door Trains
Track gauge1,067 mm (3 ft 6 in)

Seibu Railway
401 Series Trains Were Painted In Seibu All Yellow Livery

1st 401 Series was constructed in 1968. Then known as 411 Series. At the time before conversion. 411 Series cars had the MT15E Traction Motors, in later years Seibu converted all 411 Series cars to Seibu 401 Series. MT15E Traction Motors were replaced with MT46-based Hitachi Resistor Controlled motors. Last remaining trains were withdrawn in 1997.

Sangi Railway
A Sangi Railway 101 Series Train

401 Series train sets were transferred to Sangi Railway in 1990. Among other Seibu EMUs sent to that railway, it's the only 2-car EMU Series on Sangi Railway line.

Ohmi Railway
  • Ohmi 800/820 Series - Entered Service in 1997 (820 Series) And 1998 (800 Series)
  • Ohmi 700 Series - Entered Service On June 13th 1998, Withdrawn On May 6th 2019.

Ohmi Railway 700 And 800 Series are the converted Seibu 401 Series after conversion with the change of the cabins. 2 Cars Of 820 Series have the remarks of original 401 Series prior to conversion

  • A 800 Series Train In May 2007
  • a 700 Series Train In May 2007
  • Ohmi Railway Set 821F In May 2007
  • Ohmi Railway Set 822F In January 2017
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