Item :- PS 9B Range (PSIG) 2.5 to 9.5 Differential minimum (PSI) 1.2-1.8 Differential maximum (PSI) 7 Series PS Pressure Switches are essentially meant for ON-Off pressure control applications such as air compressor or water pump to control their working between the minimu and maximum setting value, pressure switch contacts close an dstarts the motor. A speciallycontoured diaphragm sense he change in pressure and actuates a triple pole contact switch,which enables direct switching of 3 phase motors. The setpoint ( cut-out pressure) and resetpoint (cut-in pressure) area adjusted by a Range screw and differential screw. A pressure relief valve to relieve the pressue locked at the compressor cylinder head is a available in Model PSU. A hand lever is provided to lock the contacts in "OFF" position if-required. When set to "AUTO" position, the epressure switch intiates normal operation.
