This Square D 9007AW12 heavy duty limit switch has a metal enclosure and is lever-operated. It is made of cast zinc for resistance to corrosion and has a one-direction programmable lateral approach. It has one normally open (NO) and one normally closed (NC) snap-action contact and one entry tapped for a 1/2"-14 National Pipe Taper (NPT) cable connection. It has an operating temperature range from -65 to +185 degrees C and meets the Ingress Protection (IP) 65 standard for protection against dirt, dust, and water. This switch has National Electrical Manufacturers Association (NEMA) protection ratings of 1, 2, 4, 12, and 13.