Item :- PS 4B
Range (PSIG) 1 to 4
Differential minimum (PSI) 0.6-0.7
Differential maximum (PSI) 3
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.