Single pole, double throw switch turns on position 1 and 2 or position 1 and 3. Can be used to combine nav lights and anchor light with shared bulbs. Heavy-duty, noncorrosive construction with moisture-repellent insulators. Brass case, stem, terminals and mounting hardware. All knobs are screw-on type. Nominal voltage is 6-36V DC. Rated for 10A at 12V DC. #8-32 screw terminals. Fits panels up to 1" thick. Replaces Cole Hersee part number M-532.