Double Pole, Single Throw. Normally Off. Off with plunger depressed, spring return to On. For energizing two circuits simultaneously. 10A at 12V DC. 7/16" -20 thread mounting stem, 7/16" (11.1mm) long, two flats on stem for mounting in double-D hole. Four screw terminals. Plunger 19/64" (7.54mm) long.