One Johnson Controls P45NCA-12C Lube Oil Pressure Cutout Controls w Time Delay Relay 120 VAC or DAC
The P45 controls provide dependable economical low lube oil pressure cutout for pressure lubricated refrigeration compressors. The factory set pressure adjustment provides operation to the compressor manufacturer's specification. the P45 control measures the net oil pressure available to circulate oil through the lubrication system. (Net oil pressure is the difference between the oil gauge pressure and the refrigerant pressure in the crankcase.) a built in time delay relay -- compensated for ambient temperature -- allows for pressure pickup on start and avoids nuisance shutdowns on short duration pressure losses during the running cycle.The P45 is interchangeable in mounting and wiring with most Penn P28 controls.