ZM1 Series, Subminiature Basic Switch, SPDT, 10.1 A, 125/250 Vac, Short Straight Lever, Solder Termination MICRO SWITCH ZM1 Series subminiature basic switches are used for simple or precision ON/OFF application needs and are rated up to 16 A. These switches combine small size and light weight with ample electrical capacity, low cost and long life.