The 1M31T6B11M1QE is a three-pole double-throw (3PDT) miniature Toggle Switch with solder lug termination, ON-NONE-ON function, 12.3-inch high flatted anti-rotation chrome plated brass actuator and 7.55-inch high keyway (THD standard) nickel plated brass bushing. The 1M31 series switch has silver plated contact, stainless steel housing and tin plated brass switch support.