| E331 series | |
|---|---|
E331 series set AK1 at Keiyō depot, July 2006 |
|
| In service | March 2007–Present |
| Manufacturer | Kawasaki Heavy Industries, Tokyu Car Corporation |
| Constructed | 2006 |
| Number built | 14 cars (1 set) |
| Number in service | 14 cars (1 set) |
| Formation | 14 cars per trainset |
| Fleet numbers | AK1 |
| Operator | JR East |
| Depot(s) | Keiyō (Shin-Narashino) |
| Line(s) served | Keiyō Line |
| Specifications | |
| Car body construction | Stainless steel[1] |
| Car length | 13,400 mm (cars 2-6, 9-13), 16,500 mm (cars 1, 7, 8, 14)[2] |
| Width | 2,989 mm |
| Doors | 3 pairs per side |
| Maximum speed | 120 km/h (75 mph) |
| Electric system(s) | 1,500 V DC overhead catenary |
| Gauge | 1,067 mm (3 ft 6 in) |
The E331 series (E331系) is an electric multiple unit (EMU) train used for commuter services operated by East Japan Railway Company (JR East). Only one trainset has been built, and it differs significantly from other JR commuter EMUs in having articulated cars with shared bogies and using direct-drive motors.[2]
Contents |
The lone set (AK1) is formed as follows, with car 1 at the Tokyo end.[1]
| Car No. | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Designation | Tc' | M | T2 | M | T | M | T4 | T3 | M | T2 | M | T | M | Tc |
| Numbering | KuHa E330-1 | MoHa E331-6 | SaHa E331-502 | MoHa E331-5 | SaHa E331-2 | MoHa E331-4 | SaHa E331-1001 | SaHa E330-1 | MoHa E331-3 | SaHa E331-501 | MoHa E331-2 | SaHa E331-1 | MoHa E331-1 | KuHa E331-1 |
Cars 3 and 10 (SaHa E331-502 and SaHa E331-501) are each fitted with one PS37 single-arm pantograph.[1]
Cars 2 to 13 have longitudinal seating, while the end cars 1 and 14 have transverse seating bays which can be rotated and rearranged longitudinally.[2]
Incorporating new technology tested on the earlier experimental E993 series "AC Train", the E331 series was delivered to JR East in March 2006. Cars 1 to 7 were built by Tokyu Car Corporation in Yokohama, and cars 8 to 14 were built by Kawasaki Heavy Industries in Kobe.[1]
Following extensive test running, the set entered revenue service on the Keiyō Line between Tokyo and Soga from the start of the revised timetable on 18 March 2007.[3] It was soon removed from service on 26 March for modifications. The set was returned to service on 23 December 2008.[4]
The set was again removed from revenue service in May 2009, returning to service on 3 April 2010.[5]
Media related to [//commons.wikimedia.org/wiki/Category:JR_East_E331 JR East E331] at Wikimedia Commons
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