Interpower Corporation, formerly Panel Components, is a supplier of power system components, offering international power cords and cord set, plugs, sockets and connectors, high power pin and sleeve devices, modules and strain reliefs, socket strips and medical products, transformers and voltage changers. The company was founded in 1975 in Berkeley, Calif. Its first major product was a unique combination fuse holder. The fuse holder accommodates both international and North American fuses by changing the carrier. Interpower supplies to the small and mid-size companies. The company has corporate and manufacturing facilities in Oskaloosa, Iowa.