| Odakyu 4000 series | |
| Manufacturer: | Tokyu Car Corporation, J-TREC, JR East |
| Factory: | Yokohama, Niitsu |
| Replaced: | Odakyu 1000 series |
| Yearconstruction: | 2007–2016 |
| Yearservice: | 22 September 2007 |
| Numberbuilt: | 160 vehicles (16 sets) |
| Numberservice: | 160 vehicles (16 sets) |
| Formation: | 10-car sets |
| Fleetnumbers: | 4051–4066 |
| Operator: | Odakyu Electric Railway |
| Depots: | Kitami |
| Carbody: | Stainless steel |
| Carlength: | 200NaN0 |
| Doors: | 4 pairs per side |
| Maxspeed: | 100km/h[1] |
| Acceleration: | 3.3km/h/s |
| Deceleration: | 4km/h/s (service) 4.7km/h/s (emergency) |
| Traction: | Variable frequency (IGBT) |
| Poweroutput: | 190 kW per motor |
| Electricsystem: | 1,500 V DC Overhead lines |
| Collectionmethod: | Pantograph |
| Brakes: | Regenerative brake |
| Safety: | OM-ATS,D-ATS-P, CS-ATC |
The is a 1,500 V DC commuter electric multiple unit (EMU) train type operated by the private railway operator Odakyu Electric Railway in Japan since 2007.[2]
The trains are based on the JR East E233-2000 series narrow-body EMU design to permit subway running.[2] The traction motors are fully enclosed to reduce environmental noise.[2]
, 15 ten-car sets are in service, numbered 4051 to 4065, and formed as follows.[3]
| Car No. | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Designation | Tc2 | M6 | M5 | T2 | T1 | M4 | M3 | M2 | M1 | Tc1 | |
| Numbering | 4550 | 4500 | 4400 | 4450 | 4350 | 4300 | 4200 | 4100 | 4000 | 4050 |
Passenger accommodation consists of longitudinal bench seating throughout. Cars 1 and 10 have wheelchair spaces.[3]
The first train was delivered in May 2007, and the trains entered service in September 2007 on inter-running services between Odakyu and the Tokyo Metro Chiyoda Line, displacing 1000 series sets,[4] which were cascaded to surface lines to replace older 5000 and 5200 series sets.
From 26 March 2016, the 4000 series began operation on the JR East Joban Line.[5]