Normally off, with a variety of connections when pulled. Heavy-duty, noncorrosive construction with moisture-repellent insulators. Brass case, stem, terminals and mounting hardware. All knobs are screw-on type. Stems: 3/8"dia. x 1-1/4"L. 6-36V DC. Rated for 10A at 12V DC.M-476 3-Position Switch Off/On #1/On #2