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The , branded , is a DC
electric multiple unit An electric multiple unit or EMU is a multiple-unit train consisting of self-propelled carriages using electricity as the motive power. An EMU requires no separate locomotive, as electric traction motors are incorporated within one or a number ...
(EMU) train type operated by
East Japan Railway Company The is a major passenger railway company in Japan and is the largest of the seven Japan Railways Group companies. The company name is officially abbreviated as JR-EAST or JR East in English, and as in Japanese. The company's headquarters ar ...
(JR East) in Japan. It was introduced into commercial service on 2 July 1993, and was specifically designed to be used
limited express A limited express is a type of express train service. It refers to an express service that stops at a limited number of stops in comparison to other express services on the same or similar routes. Japan The term "limited express" is a common ...
services from Tokyo to the
Bōsō Peninsula The is a peninsula that encompasses the entirety of Chiba Prefecture on Honshu, the largest island of Japan. It is part of the Greater Tokyo Area. It forms the eastern edge of Tokyo Bay, separating it from the Pacific Ocean. The peninsula covers ...
.


Design

The trains were built jointly by
Kinki Sharyo is a Japanese manufacturer of railroad vehicles based in Osaka. It is an affiliate company of Kintetsu Corporation. In business since 1920 (as Tanaka Rolling Stock Works) and renamed The Kinki Sharyo Co., Ltd in 1945. They have produced light r ...
and
Tokyu Car is a manufacturer of heavy rail cars in Japan, formerly known as . The company is based in Kanazawa-ku, Yokohama, and a member of East Japan Railway Company (JR East) group. J-TREC manufactures rail vehicles not only for JR East and Tokyu Cor ...
, with a steel body design based directly on the earlier
253 series 53 may refer to: * 53 (number) * one of the years 53 BC, AD 53, 1953, 2053 * FiftyThree, an American privately held technology company that specializes in tools for mobile creation and visual thinking * 53rd Regiment Alabama Cavalry * 53rd Regiment ...
EMUs built for ''
Narita Express , abbreviated as N'EX, is a limited express train service operated in Japan since 1991 by East Japan Railway Company (JR East), serving Narita International Airport from various Greater Tokyo Area stations. Services run approximately half-hour ...
'' services, although the window height was increased by . It is the first JR East limited express rolling stock to feature
VVVF A variable-frequency drive (VFD) is a type of motor drive used in electro-mechanical drive systems to control AC motor speed and torque by varying motor input frequency and, depending on topology, to control associated voltage or current vari ...
Gate turn-off thyristor A gate turn-off thyristor (GTO) is a special type of thyristor, which is a high-power (.e.g. 1200V AC) semiconductor device. It was invented by General Electric. GTOs, as opposed to normal thyristors, are fully controllable switches which can be ...
traction control systems, based on the results of trials with the prototype
209 series The is an electric multiple unit (EMU) commuter train type operated by East Japan Railway Company (JR East) in the Tokyo area of Japan since 1993. The series was introduced in 1992 for experimental operations (as the 901 series) and in 1993 fo ...
commuter EMUs. DT56E
bogie A bogie ( ) (in some senses called a truck in North American English) is a chassis or framework that carries a wheelset, attached to a vehicle—a modular subassembly of wheels and axles. Bogies take various forms in various modes of transp ...
s are used on motored cars, and TR241E bogies are used on trailer cars.


Operations


Sōbu Main Line

* ''
Shiosai The is a limited express train service in Japan operated by East Japan Railway Company (JR East). It runs from and to on the Bōsō Peninsula in Chiba Prefecture. Station stops ''Shiosai'' services operate over the Sōbu Main Line, s ...
'': Tokyo - (since 10 December 2005)


Sotobō Line

* ''
Wakashio The is a limited express train service in Japan operated by the East Japan Railway Company (JR East). It runs from to and on the Bōsō Peninsula in Chiba Prefecture. Station stops ''Wakashio'' services operate over the Keiyo Line and ...
'': - 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. 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 in standard class, and a seat pitch of 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

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.


See also

*
E257 series The is a DC electric multiple unit (EMU) train type operated in Japan for limited express services by East Japan Railway Company (JR East) and built jointly by Hitachi, Kinki Sharyo, and Tokyu Car Corporation. Variants * E257-0 series: ''Azu ...
, also used on Bōsō limited express services


References


External links


255 series ''Shiosai''/''Wakashio''/''Sazanami''
{{JR East EMU 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