The N-7-G-040 and N-7-HD-040 are designed for use as cost-effective, preset control thermostats for freeze protection. These NEMA 4X units provide watertight, dusttight and corrosion-resistant protection to a hermetically sealed switch inside of a stainless steel enclosure. The thermostat’s lead wires can be run into the PCA-1 or ECA-1 power connection kit for connection and thereby eliminate the need for an additional junction box. Both thermostats are approved for use in ordinary (nonclassified) and hazardous (classified) locations.","Operating Voltage: 120 - 240 VAC \/ 120\/240\/277 VAC