The Katko changeover switch ensures complete safety when the need arises to switch between mains supply and generator, and subsequently back again to mains supply. The company offers a comprehensive, high quality range of changeover switches from 25A to 200A, and these are available with polycarbonate or steel housings for regular or heavy-duty applications. Compact and competitively priced, Katko switches are also designed with a central “off” position for a failsafe changeover connection at all times.