311 series
| 311 series | |
|---|---|
311 series, January 2022 | |
| In service | 1989–2025 |
| Manufacturers | Hitachi, Kawasaki Heavy Industries, Kinki Sharyo |
| Replaced | 113 series, 115 series |
| Constructed | 1989–1991 |
| Scrapped | 2022– |
| Number built | 60 vehicles |
| Number in service | None |
| Successor | 315 series |
| Formation | 4 cars per trainset |
| Fleet numbers | G1–G15 |
| Operator | JR Central |
| Depot | Ōgaki |
| Lines served | |
| Specifications | |
| Car body construction | Stainless steel |
| Car length |
|
| Width | 2,966 mm (9 ft 8.8 in) |
| Doors | 3 pairs per side |
| Maximum speed | 120 km/h (75 mph) |
| Traction system | Resistor control + field system superimposed field excitation control |
| Traction motors | C-MT61A |
| Power output | 960kW (2M2T set configuration) |
| Gear ratio | 16:83 (5.19) |
| Electric system | 1,500 V DC overhead |
| Current collection | C-PS27A single-arm pantograph |
| Braking systems | Regenerative brake, electronically controlled pneumatic brakes |
| Safety systems | ATS-ST, ATS-PT |
| Coupling system | Shibata Type |
| Multiple working | 211/313 series |
| Track gauge | 1,067 mm (3 ft 6 in) |
The 311 series (311系) was a DC suburban electric multiple unit (EMU) train type operated by Central Japan Railway Company (JR Central) in Japan from 1989 until 2025. A total of 15 four-car sets were built between 1989 and 1991 by Hitachi, Kawasaki Heavy Industries, and Kinki Sharyo to replace older 113 and 115 series EMUs. The design of the 311 series was developed from that of the 211 series.
Following the introduction of new 315 series EMUs, JR Central began retiring the 311 series fleet in May 2022, with the entire fleet retired by 30 June 2025.