MICRO SWITCH™ Premium Large Basic Switches: BZ Series, Single Pole Double Throw (SPDT), 10 A 125/250 Vac, 57 mm [2.250 in] Straight Cadmium-Plated Lever Actuator, No External Return Spring, Binding Head Combination Screw Termination and Cup Washers, Mounting Holes will Accept Pins or Screws, UL, CE, CSA