This product is part of the Nema Pressure Switches range, an offer of electromechanical pressure switches. This electromechanical pressure switch has 1 NC and 1 NO, SPDT-DB (single pole double throw, double break), form Z, snap action contacts. It has an adjustable differential scale for internal settings between 1.5psig to 75psig. The pressure switch with an approximate adjustable differential at mid range of 31.03kPa to 103.42kPa and a maximum pressure of 240psi. It is furnished with screw clamp terminals for electrical connection and 1/4-18 NPTF for fluid connection. This switch has a diaphragm actuator which can be operated from any position and regulation of 2 thresholds. It is a NEMA 7/9 rated product. The enclosure is made of cast aluminum. Its dimensions are 181.1mm (width) x 135.64mm (depth) x 182.88mm (height). It weighs 8.39kg. It is suitable for pressure controlling or monitoring of water pumps, compressors, agricultural/irrigation water systems, molding presses and injection molders. This product is certified by CE, CSA and UL. It meets CSA C22.2 No 14 and UL 508 standards. A complete line of electromechanical switches to monitor and control pressure conditions for industrial and end-user applications. The Square D brand water pressure switch has expanded to industry leading Pressure Sensors and Switches.