MP 55A differential oil pressure switches are used as safety switches to protect refrigeration compressors against low lube oil pressure.
If the oil pressure is not adequate, the oil pressure switch will stop the compressor after a
a certain period of time.
Compatible with such refrigerants as: R22, R134a, R404A, R407A, R407C, R407F, R422B, R422D, R448A, R449A, R450A, R452A, R507A, R513A, R717.