JNR Class EF30

The JNR Class EF30 is a Japanese dual-current electric locomotive operated by the Japanese National Railways from 1960 to March 1987.
==History==
The EF30 was developed specifically for use on trains traveling through the Kanmon Railway Tunnel, linking Honshu and Kyushu; both locations used different types of current so a dual-current locomotive would be needed.
From 1960 to 1968, 22 locomotives were manufactured by Hitachi, Mitsubishi and Toshiba; these entered service in 1960 as the world's first mass-produced dual-current electric locomotive. The EF30s were capable of pulling 1,200 ton freight trains on a gradient and were based at Moji Rolling Stock Center. Mostly pulling freight trains, the EF30s also handled passenger services such as the Tsubame and Hato services.
Withdrawals began in 1978 with EF30 1 and all were withdrawn by 29 March 1987, a few days before the JNR's privatization and division. Two locomotives have been preserved.
==Design==
The EF30s featured large box-shaped bodies with a large circular headlight mounted on top. The locomotives featured an unpainted stainless steel body to prevent corrosion from the sea water near the areas where the locomotive operates. The basic locomotive body design was derived from the EF60 and ED71 locomotives.
==Specifications==
The EF30s used a WN drive system. MT51 traction motors were used on the locomotives; the prototype used MT102 traction motors.
==Preservation==
The following Class EF30 locomotives have been preserved:
Number 	Manufacturer 	Equipment manufacturer	Date manufactured	Date retired 	Location 	Notes
EF30 1 	Shin-Mitsubishi Jukōgyō	Mitsubishi Electric 	19 March 1960 	4 December 1978 	Mekari Park, Fukuoka, Kyushu, Japan 	Prototype locomotive; displayed outdoors coupled to passenger car OHaFu 33 488
EF30 20	Shin-Mitsubishi Jukōgyō	Mitsubishi Electric 	31 October 1968 	17 December 1986	Usui Pass Railway Heritage Park, Gunma, Japan 	Displayed outdoors next to EF58 157
EF30 3 	Shin-Mitsubishi Jukōgyō	Mitsubishi Electric 	2 August 1961 	24 March 1995 	Kyushu Railway History Museum, Kitakyushu, Kyushu, Japan	Cab only, last operational EF30; displayed under shelter, preserved with cabs of ED76 1 and KuHa 481-246, formerly on display at Ōita Rolling Stock Center until 2006
The following Class EF30 locomotives were preserved in the past but have since been scrapped:
Number 	Manufacturer 	Equipment manufacturer	Date manufactured	Date retired	Last location 	Notes
EF30 21	Shin-Mitsubishi Jukōgyō	Mitsubishi Electric 	1968 	1986 	Suita Locomotive Depot, Osaka, Japan	Stored in roundhouse; scrapped 1998 with demolition of roundhouse
==Gallery==
File:JNR EF30 20 2020.jpg
Category:JR Group trains
Category:Electric locomotives
Category:B+B+B locomotives
Category:Narrow-gauge
Category:Narrow-gauge locomotives
Category:Hitachi locomotives
Category:Mitsubishi locomotives
Category:Japanese locomotives