Locomotive Wiki
Advertisement

The JNR Class ED50 was a Japanese DC electric locomotive operated by the Japanese National Railways from 1923 to September 1931.

History[]

The ED50 was an early electric locomotive used on Japan's rail network. The locomotives were imported with the mass electrification of the Tōkaidō Main Line and Yokosuka Line.

A total of seventeen locomotives were built in 1923; the locomotives's electrical equipment was built by English Electric and the mechanical equipment by the North British Locomotive Company. They were originally classified as the Class 1040 and numbered 1040 through 1056, but were reclassified to Class ED50 when a rule regarding the standardization of locomotive names was enacted in 1928.

The locomotives were used on the Tōkaidō Main Line and the Yokosuka Line to pull passenger trains. Starting in 1930, the ED50s would undergo rebuilding to become what would be known as the Class ED17 locomotives, with their gear ratios increased to allow the locomotives to pull freight trains more efficiently. All seventeen locomotives were converted by September 1931.

ED17 1 (ex-ED50 1) and ED18 2 (ex-ED50 16) have been preserved.

Design[]

The ED50s featured large box-shaped bodies with large top-mounted headlights.

Specifications[]

The ED50s used a nose suspension drive system. MT6 traction motors were used on the locomotives.

JR Group motive power
JNR Diesel prototype DB10DC10DC11DD10
4-axle diesel DD11DD12DD13DD14DD15DD16DD17DD20DD21DD40DD41DD42DD50DD51DD53DD54DD90DD91DD92DD93
5-axle diesel DE10DE11DE15DE50
6-axle diesel DF40DF41DF50DF90DF91 (gen 1)DF91 (gen 2)DF92DF93
Shinkansen 911912
Narrow-gauge diesel Ke DB10Ke DB11
Early 2/4-axle freight electric AB10EB10ED10ED11ED12ED13ED14ED15ED16ED17ED18 (gen 1)ED18 (gen 2)ED19ED23ED24
Early 4-axle passenger electric ED50ED51ED52ED53ED54ED55ED56ED57
Early 6-axle freight electric EF10EF11EF12EF13EF14EF15EF16EF18
Early 6-axle passenger electric EF20EF50EF51EF52EF53EF54EF55EF56EF57EF58EF59HEF10HEF50
Early 8-axle electric EH10EH50HEH50HEH150
Early Abt rack rail electric EC40ED40ED41ED42
Acquired from private railways ED20ED21ED22ED25 (gen 1)ED25 (gen 2)ED26 (gen 1)ED26 (gen 2)ED27 (gen 1)ED27 (gen 2)ED28 (gen 1)ED28 (gen 2)ED29 (gen 1)ED29 (gen 2)ED30 (gen 1)ED31ED32ED33ED34ED35ED36ED37ED38Ke ED10DeKi 1RoKo 1DeKi 501RoKo 1000
DC 4-axle ED60ED61ED62ED63ED95
AC 4-axle ED44ED45ED70ED71ED72ED73ED74ED75ED76ED77ED78ED79ED90ED91ED93ED94
DC 6-axle EF60EF61EF62EF63EF64EF65EF66EF67EF90
AC 6-axle EF70EF71
Dual-current ED30 (gen 2)ED46ED92EF30EF80EF81
Other AH100
JR Group Dual-current electric ED500EF500EF510EH500
DC electric EF200EF210EH200
DC EMU M250
AC electric EH800
Diesel DD18DD19DB500DD200DF200ENR-1000
Hybrid HD300
Advertisement