Single pole, single throw switch turns one circuit on and off. Nominal voltage is 12V/24V DC. Rated for 20A @12V DC, 10A @ 24V DC. Two #8-32 screw terminals. Snap-in mounting to fit panel hole 1.45" x .83" into panels .093" to .187" thick. Replaces Cole Hersee part number 56027-01.