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The Seibu 101 series (西武101系) and New 101 series (新101系) are electric multiple unit (EMU) train types operated by the private railway operator Seibu Railway in Japan.
| Seibu 101 series | |
|---|---|
A Seibu 101 series train in December 2012 at Yokoze rail yard | |
| Manufacturer | Seibu Tokorozawa railway works |
| Constructed | 1968–1976 [1] |
| Entered service | March 5, 1969 [1] |
| Number built | 278 vehicles |
| Number in service | None |
| Formation | 2/4/6/8 cars per trainset |
| Operators | Seibu Railway |
| Specifications | |
| Car length | 20,000 mm (65 ft 7 in) |
| Doors | 3 pairs per side[1] |
| Maximum speed | 105 km/h (65 mph) |
| Traction system | Resistor control |
| Traction motors | HS-836-Nrb HS-836-Prb |
| Power output | 150 kW (201 hp)[1] |
| Acceleration | 2.3km/h/s |
| Deceleration | 3.5km/h/s (Service) 4.5km/h/s (Emergency) |
| Electric system(s) | 1,500 V DC overhead catenary |
| Current collector(s) | Pantograph |
| Safety system(s) | ATS |
| Track gauge | 1,067 mm (3 ft 6 in) |
The 101 series began service in 1969, in conjunction with the opening of the Seibu Chichibu Line.[2]
| Seibu New 101 series | |
|---|---|
A Seibu New 101 series train | |
| Manufacturer | Seibu Tokorozawa railway works, Tokyu car cooperation |
| Constructed | 1979–1984 |
| Entered service | 1979 [3] |
| Number built | 154 vehicles |
| Formation | 2/4/8 cars per trainset |
| Operators | Seibu Railway |
| Specifications | |
| Car length | 20,000 mm (65 ft 7 in)[1][3] |
| Width | 2,881 mm (9 ft 5.4 in)[1][3] |
| Height | 4,065 mm (13 ft 4.0 in)[1][3] |
| Floor height | 880 mm (2 ft 11 in)[1][3] |
| Doors | 3 pairs per side[1] |
| Maximum speed | 105 km/h (65 mph) |
| Traction system | Resistor control |
| Traction motors | HS-836-Nrb HS-836-Prb |
| Power output | 150 kW (201 hp)[1] |
| Acceleration | 2.3km/h/s |
| Deceleration | 3.5km/h/s (Service) 4.5km/h/s (Emergency) |
| Electric system(s) | 1,500 V DC overhead catenary |
| Current collector(s) | Pantograph |
| Safety system(s) | ATS |
| Track gauge | 1,067 mm (3 ft 6 in) |
The New 101 series features changes in design.[4] The 301 series is based on the New 101 series,[5] and were formed as eight-car sets.[2]
The Chichibu Railway 6000 series trains were rebuilt from former Seibu New 101 series trains.[6] Sangi Railway operates former New 101 series trains as Sangi Railway 751 series.[7] Former Seibu New 101 series trains were also transferred to Ryutetsu, becoming Ryutetsu 5000 series trains.[8]
In 2018, one set received a livery resembling the Ohmi Railway 100 series.[9] Other livery variations include a set in Izuhakone Railway livery,[10] and a set in red and beige livery.[11]