103-3500series -0 subseries -1500 subseries -3500 subseries -3550 subseries Type index
	JR West delivered 103-3550 series formed by 2 cars into services for its newly electrified Kakogawa line linking Kakogawa and Tanigawa in 2004. Although 103-3550 series are based on 103-3500 delivered to the Bantan line, 103-3550 series differ from 103-3500 series in having the pass-through door on the cab end and being equipped with the toilet. All cars were remodeled, by transplanting the cab sections onto powered intermediate cars of 103-0 series. Kumoha103-3500s are fitted with a current collector. Some kumoha103-3550s are fitted with a second de-icing current collector. 103-3550 series are equipped with the automatic announcement system and the fare box for use on conductor-less service. The refurbishment was also commenced with the same accommodation as 207 series. Now 103-3550 series are used on the local services of the Kakogawa line.
	Technical Data Items Data Supply Voltage 1500VDC Service speed, etc. Service speed: 100km/h Length 19500mm Width 2870mm Height 3939mm Bogie DT33 Collector PS16 Traction motor MT55A (110kW, 375V) Gear ratio 6.07 Traction system CS20D Air conditioner AU75B (42000kcal/h) Designed by JR West