JR Freight Class EH200

{{Infobox locomotive

| name = Class EH200

| powertype = Electric

| image = EH200-10-Shinonoi-Line.jpg

| alt =

| caption = EH200-10 on the Shinonoi Line in March 2018

| builder = Toshiba Infrastructure Systems & Solutions

| builddate = 2001–

| totalproduction =

| uicclass = Bo′Bo′+Bo′Bo′

| gauge = {{track gauge|1067mm|lk=on}}

| bogies =

| wheeldiameter =

| minimumcurve =

| wheelbase =

| length = {{Convert|25,000|mm|ftin|frac=8|abbr=on}}

| width = {{Convert|2,948|mm|ftin|frac=8|abbr=on}}

| height = {{Convert|3,960|mm|ftin|frac=8|abbr=on}}

| axleload =

| locoweight = {{cvt|134.4|t}}

| powersupply =

| electricsystem = 1,500 V DC overhead wire

| collectionmethod = pantograph

| alternator =

| generator =

| tractionmotors = AC

| transmission =

| multipleworking =

| maxspeed = {{Convert|110|km/h|mph|round=5|abbr=on}}

| poweroutput = {{Convert|4,520|kW|hp|abbr=on}}

| tractiveeffort = {{Convert|271.8|kN|abbr=on}}

| factorofadhesion =

| trainheating =

| locobrakes = Air and electrical regenerative

| trainbrakes = Air

| safety = ATS-SF

| operator = JR Freight

| numinclass = 25

| fleetnumbers =

| deliverydate = 2001

| firstrundate =

| lastrundate =

| retiredate =

| withdrawndate =

| preservedunits =

| restoredate =

| scrapdate =

| currentowner =

| disposition = In operation

}}

The {{Nihongo|Class EH200|EH200形}} is a Bo′Bo′+Bo′Bo′ wheel arrangement twin unit DC electric freight locomotive operated by JR Freight in Japan since 2001.{{cite book

|title=Jr機関車カタログ: Jr7社の現有30形式を詳しく解說}}{{cite book

|title=Jēāru zensharyō handobukku: Rail Magazine 2009}}

Operations

The locomotives are built at the Toshiba factory in Fuchū, Tokyo. They are all based at Takasaki depot, and are primarily used on oil tank trains north of Tokyo and on the steeply-graded Chūō Main Line, Shinonoi Line, and Joetsu Line, replacing pairs of Class EF64s.{{cite book |script-title=ja: ELダイヤ情報21 |trans-title=Electric Loco Timetable Information 21|publisher = Kotsu Shimbunsha|date = October 2012 |location = Tokyo, Japan |pages = 36–37 |isbn = 978-4330320120}}

{{As of|2017|03|01}}, 25 Class EH200 locomotives are in service (EH200-901 and EH200-1 to EH200-24).{{cite magazine|last = Kisumi |first = Kenzo |script-title=ja: 世代交代が進むJR貨物の機関車|trans-title=Advances in handover between generations for JR Freight locomotives |magazine = Tetsudo Club |volume = 2|page = 98 |publisher = Cosmic Publishing |location = Japan |language= ja |date = April 2017 |isbn = 978-4-7747-8338-3}}

Variants

EH200-900: Prototype locomotive EH200-901, built 2001
EH200-0: Full-production locomotives built from 2003 onward

EH200-901 prototype

The pre-production prototype, EH200-901, was delivered to Takasaki depot in 2001, and entered revenue service in October 2002 following extensive testing.

File:EH200-901 Hachioji 20030913.JPG|Prototype EH200-901 at Hachiōji station in September 2003

EH200-0 full-production version

Following evaluation of the prototype version, the first full-production locomotive, EH200-1, was delivered to Takasaki in March 2003. A number of minor improvements were incorporated, with the main external differences from the prototype being as follows.

Elimination of centre pillar in the cab windscreens
Redesigned windscreen wipers
"Blue Thunder" logo on bodyside
Reduced size white "JRF" logo on the body side

File:EH200 yamate.JPG|EH200-21 in September 2010

File:EH200-8 Takasaki 20100509.jpg|Side view of EH200-8 in May 2010

Classification

The EH200 classification for this locomotive type is explained below. As with previous locomotive designs, the prototype is numbered EH200-901, with subsequent production locomotives numbered from EH200-1 onward.

E: Electric locomotive
H: Eight driving axles
200: DC locomotive with AC motors