The is an AC electric multiple unit train type operated on limited express services by Kyushu Railway Company (JR Kyushu) in Japan since March 1988.
The trains were built jointly by Hitachi, Kinki Sharyo, and JR Kyushu (at its Kokura factory).
The 5-car sets used on Kamome services are formed as follows.
Cars 2 and 5 are each fitted with one scissors-type pantograph.
The 4-car sets used on Midori services are formed as follows.
Car 14 is fitted with one scissors-type pantograph.
The 4-car sets used on Huis Ten Bosch services are formed as follows.
Car 9 is fitted with one scissors-type pantograph.
The 5-car sets used on Nichirin services are formed as follows.
Cars 2 and 5 are each fitted with one scissors-type pantograph.
Set CM35 normally operates as a 4-car set.
The following formations were used from introduction in 1988 until the fleet was refurbished and reformed in 2000.
Cars 2, 4, 6, and 9 were each fitted with one scissors-type pantograph.
Cars 3, 5, and 8 were each fitted with one scissors-type pantograph.
Cars 2, 4, and 7 were each fitted with one scissors-type pantograph.
Cars 2, 4, and 7 were each fitted with one scissors-type pantograph.
Cars 3 and 6 were each fitted with one scissors-type pantograph.
Cars 2, and 5 were each fitted with one scissors-type pantograph.
Cars 2, and 5 were each fitted with one scissors-type pantograph.
Car 5 was fitted with one scissors-type pantograph.
3-car sets used on Ariake and Super Ariake services from 1 April 1988 until 1990
Car 3 was fitted with one scissors-type pantograph.
The 783 series trains were first introduced from 13 March 1988, initially branded as "Hyper Saloon".
On 30 May 1989, the 783 series design was awarded the 1988 Laurel Prize by the Japan Railfan Club. A special award ceremony was held at platform 1 of Hakata Station on 26 August 1989.
All cars were made no-smoking from the start of the revised timetable on 18 March 2007.