The MP 55A differential oil pressure switch is used as a safety switch to protect refrigeration compressors from low lubricating oil pressure. If the oil pressure is abnormal, the oil pressure switch shuts down the compressor after a predetermined period of time.
Compatible with the following refrigerants: R22, R134a, R404A, R407A, R407C, R407F, R422B, R422D, R448A, R449A, R450A, R452A, R507A, R513A, R717