Sumitomo



Full Catalog


Sumitomo Wiring Systems (Manufacturing code: SUM) is a leading supplier of interconnect products for the automotive and transportation industries. Sumitomo took its first steps as a company in 1917 when Japan was riding a wave of industrialization. Sumitomo began by producing power cable, telephone wire, wire harnesses for motorcycles and automobiles and has been a significant player in technological developments in transmitting power and data in the industry.