This product is part of the Nema Pressure Switches range, an offer of air compressor switches. This air compressor switch has 2 normally closed, snap action, DPST-DB (double pole single throw, double break) form YY contacts and off at 135psi pressure setting value. The pressure switch with a pressure sensor size of 150psi, an adjustable range on rising pressure of 70psi to 150psi and approximate fixed differential of 30psi. It is furnished with screw clamp terminals for electrical connection and 0.25inch NPSF internal for fluid connection. This low HP switch has a diaphragm actuator which can be operated from any position and fixed differential scale for internal settings. The enclosure is made of polypropylene. It is available in size of 3.1inch (W) x 3.76inch (D) x 3.71inch (H) and weighs 1lb. It is suitable for pressure controlling or monitoring of water pumps, compressors, agricultural/irrigation water systems, moulding presses, injection moulders, grinding machines, machining centres, complex and special machines. It is an IP20 and NEMA 1 rated product. This product is certified by CE, CSA and UL. Meets UL 508 standards. Every pressure switch has two operating points, one on rising pressure and one of falling pressure. The operating point on rising pressure is referred to as the TRIP POINT or cut out for pumps and compressors. Power pressure switch rated for the direct control of motors in compressor applications. Rugged, robust construction provides a long life and years of uninterrupted, worry-free service. Electromechanical switch to monitor and control pressure conditions for industrial and end-users applications.