This product is part of the NEMA Pressure Switches range, an offer of electromechanical vacuum switches. This electromechanical vacuum switch has 2 normally closed, snap action, DPST-DB (double pole double throw, double break), form YY contacts and maximum pressure of 150psi. The vacuum switch with an approximate differential of 5inHg to 10inHg. Vacuum switch has a cut range of 5InHg to 25InHg and a cut in range of 0InHg to 20InHg. Switch is set to 16.5InHg to 25InHg. It is furnished with screw clamp terminals for electrical connection and 0.25inch 18 NPSF for fluid connection. This vacuum switch has a diaphragm actuator which can be operated from any position and adjustable scale for internal settings. Offers mechanical durability of 300 operating cycles. The enclosure is made of stamped metal. It is available in size of 4.58inch (W) x 4.37inch (D) x 7.13inch (H) and weighs 3.53lb. It is suitable for pressure controlling or monitoring of water pumps, compressors, agricultural/irrigation water systems, molding presses, injection molders, grinding machines, machining centers, complex and special machines. It is a NEMA 1 rated product. This product is certified by CSA and UL. Meets UL 508 standards. Electromechanical vacuum switch is designed as a companion to the 9036GG float switches in common use on vacuum heating pumps. Electromechanical vacuum switch is designed as a companion to the 9036GG float switches in common use on vacuum heating pumps.