MICRO SWITCH ZD Series Subminiature Basic Switch, Single Pole Double Throw Circuitry, 10 mA @ 12 Vdc, Pin Plunger, PCB Straight Termination, Gold Contacts MICRO SWITCH ZD Series subminiature basic switches combine small size and light weight with ample electrical capacity, low cost and extended life. ZD Series has optional IP67 sealed functionality with pre-wired leads.