Single pole, double throw switch turns one of two circuits on. On/On position, can also be used as an On/Off by isolating terminal 3. Nominal voltage of 12V DC. Universal application, rated for 10A at 12V DC. Black plastic, snap-in mounting to fit panel hole .55" x 1.13", fits panel thickness .025" to .25". 1/4" blade terminals. Replaces Cole Hersee part number 54007.