255 series
Japanese train type
title: "255 series" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["electric-multiple-units-of-japan", "east-japan-railway-company", "train-related-introductions-in-1993", "kinki-sharyo-multiple-units", "tokyu-car-multiple-units", "1500-v-dc-multiple-units-of-japan"] description: "Japanese train type" topic_path: "geography/japan" source: "https://en.wikipedia.org/wiki/255_series" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0
::summary Japanese train type ::
::data[format=table title="Infobox train"]
| Field | Value |
|---|---|
| name | 255 series |
| Bōsō View Express | |
| image | Series255 Shiosai-10.jpg |
| imagesize | 300px |
| caption | A 255 series EMU on a Shiosai service in June 2021 |
| service | 2 July 1993 – 2024 (regular service) |
| manufacturer | Kinki Sharyo, Tokyu Car |
| family | Bōsō View Express |
| replaced | 183 series |
| yearconstruction | 1993–1994 |
| yearservice | 2 July 1993 |
| numberbuilt | 45 vehicles (5 sets) |
| numberservice | 9 vehicles (1 sets) |
| numberretired | 36 vehicles (4 sets) |
| successor | E259 series (Shiosai) |
| formation | 9 cars per trainset |
| fleetnumbers | Be01 – Be05 |
| operator | JR East |
| depots | Makuhari |
| lines | {{plainlist |
| carbody | Steel |
| carlength | 21000 mm (end cars) |
| 20500 mm (intermediate cars) | |
| width | 2946 mm |
| height | 3785 mm |
| doors | 1 sliding door per side |
| maxspeed | 130 km/h |
| traction | Variable frequency (IGBT) |
| poweroutput | 95 kW x 16 = 1,520 kW |
| electricsystem | 1,500 V DC overhead |
| bogies | DT56E (motored), TR241E (trailer) |
| safety | ATS-P, ATS-SN |
| gauge | |
| :: |
| name = 255 series Bōsō View Express | image = Series255 Shiosai-10.jpg | imagealt = | imagesize = 300px | caption = A 255 series EMU on a Shiosai service in June 2021 | stocktype = | service = 2 July 1993 – 2024 (regular service) | manufacturer = Kinki Sharyo, Tokyu Car | factory = | family = Bōsō View Express | replaced = 183 series | yearconstruction = 1993–1994 | yearservice = 2 July 1993 | refurbishment = | yearscrapped = | numberconstruction = | numberbuilt = 45 vehicles (5 sets) | numberservice = 9 vehicles (1 sets) | numberretired = 36 vehicles (4 sets) | numberpreserved = | numberscrapped = | successor = E259 series (Shiosai) | formation = 9 cars per trainset | fleetnumbers = Be01 – Be05 | capacity = | operator = JR East | depots = Makuhari | lines = {{plainlist|
- Keiyo Line
- Sōbu Main Line
- Sotobō Line
- Uchibō Line
- Yokosuka Line | carbody = Steel | trainlength = | carlength = 21000 mm (end cars) 20500 mm (intermediate cars) | width = 2946 mm | height = 3785 mm | floorheight = | doors = 1 sliding door per side | maxspeed = 130 km/h | weight = | axleload = | traction = Variable frequency (IGBT) | poweroutput = 95 kW x 16 = 1,520 kW | acceleration = | deceleration = | aux = | powersupply = | hvac = | electricsystem = 1,500 V DC overhead | collectionmethod = | bogies = DT56E (motored), TR241E (trailer) | brakes = | safety = ATS-P, ATS-SN | coupling = | multipleworking = | gauge = | notes =
The 255 series, branded Bōsō View Express, is a DC electric multiple unit (EMU) train type operated by East Japan Railway Company (JR East) in Japan. It was introduced into commercial service on 2 July 1993, and was specifically designed to be used on limited express services from Tokyo to the Bōsō Peninsula.
Design
The trains were built jointly by Kinki Sharyo and Tokyu Car, with a steel body design based directly on the earlier 253 series EMUs built for Narita Express services, although the window height was increased by 100 mm. It is the first JR East limited express rolling stock to feature VVVF Gate turn-off thyristor traction control systems, based on the results of trials with the prototype 209 series commuter EMUs.
DT56E bogies are used on motored cars, and TR241E bogies are used on trailer cars.
Operations
Sōbu Main Line
- Shiosai: Tokyo – (since 10 December 2005)
Sotobō Line
- Wakashio: – Tokyo
- Shinjuku Wakashio: Shinjuku –
Formations
The five 9-car sets, numbered Be01 to Be05, are formed as shown below, with car 1 at the Tokyo end. Trains consist of four motored "MoHa" and five "KuHa", "SaHa", and "SaRo" trailer cars.
::data[format=table]
| Car No. | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | Designation | Numbering | Weight (t) | Seating capacity |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tc' | M2 | M1 | Ts | T2 | T1 | M2 | M1 | Tc | |||||
| KuHa 254 | MoHa 254 | MoHa 255 | SaRo 255 | SaHa 254 | SaHa 255 | MoHa 254 | MoHa 255 | KuHa 255 | |||||
| 31.1 | 35.7 | 33.6 | 29.2 | 28.1 | 27.3 | 35.7 | 33.6 | 31.7 | |||||
| 64 | 64 | 68 | 42 | 58 | 64 | 64 | 68 | 52 | |||||
| :: |
Cars 2 and 8 are each equipped with one PS26A scissors-type pantograph.
Passenger facilities
- Green (first class) car: Car 4
- Toilets: Cars 2, 4, 5, 7, 9
- Wheelchair space: Car 5
- Telephone: Car 4
Interior
Seating is arranged 2+2 abreast in both standard class and Green class, with a seat pitch of 970 mm in standard class, and a seat pitch of 1160 mm in Green class.
File:JRE series255 saro255-1 inside.jpg|Green car (SaRo 255-1) interior view File:JRE series255 saro255-1 seat.jpg|Green class seating File:JRE series255 moha254-2 inside.jpg|Standard class car (MoHa 254-2) interior view File:JRE series255 moha254-2 seat.jpg|Standard class seating
History
::figure[src="https://upload.wikimedia.org/wikipedia/commons/6/61/JR_East_255_Limited_Express_Sazanami.jpg" caption="A 255 series set on a ''Sazanami'' service in March 2008, with original front-end skirt design"] ::
The first two sets, Be01 and Be02, were delivered in March and April 1993, entering revenue service from 2 July 1993 on View Wakashio and View Sazanami limited express services. Three more sets, Be03 to Be05, were delivered in October and November 1994.
From the start of the revised timetable on 12 December 2000, the Green car (car 4) was made entirely no smoking.
The destination indicators on the sides of cars were changed from the original roller blind type to LED indicators between October and November 2005.
From the start of the revised timetable on 10 December 2005, View Wakashio and View Sazanami services were renamed simply Wakashio and Sazanami, and 255 series sets were also introduced on Shiosai services. All cars were made no-smoking from this date.
The front-end skirt design was modified during 2010.
From 2014, the 255 series sets were retrofitted with IGBT-based traction control systems.
Withdrawal
Initially, the 255 series sets were slated to be withdrawn from Wakashio, Sazanami, and Shiosai services before the start of the revised timetable on 16 March 2024, however, their withdrawal from regular service was deferred until June 2024 with the last regularly scheduled Sazanami and Wakashio services using this series taking place on 28 and 29 June respectively. They have since remained in limited operation for special services. Set Be05 was withdrawn from service in June 2024, followed by set Be01 in July 2024.
References
References
- JRR. (October 2011)
- Saka. Masahiro. Tetsudō Daiya Jōhō Magazine. (March 2014)
- Nomoto. Hiroshi. Railway Journal. (July 1993)
- JRR. (June 2009)
- (2023-04-11). "". link. Neko Publishing
- (15 December 2023). "2023【ダイヤ改正日】 2024年3月16日（土） - JR東日本". JR East.
- (2024-06-12). "". link
- (1 July 2024). "【詳報】2024年3月ダイヤ改正からの延長運用～特急「わかしお」「さざなみ」の255系定期運用終了". Neko Publishing.
- (18 July 2024). "255系Be-01編成が郡山へ". Koyusha Co., Ltd..
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