Danfoss 060B200291 MP54 Oil Differential Pressure Control 1/4" Flare

The Danfoss 060B200291 MP54 oil differential pressure control is a safety switch designed to protect refrigeration compressors against low lubricating oil pressure. This control monitors the difference between oil pump discharge pressure and crankcase pressure, automatically stopping the compressor if oil pressure falls below safe operating levels.

Key Features:

• Fixed 9 PSI control differential for consistent protection
• 90-second thermal time relay with fixed release time setting
• Regulation range (LP side): 29 inHg to 175 PSI
• 1/4 inch male flare connection for easy installation
• Maximum working pressure of 247 PSI (17 bar)
• Temperature compensated time relay (-40°F to 140°F)
• Stainless steel bellows construction for long service life
• Integral 1/2 inch NPSM swivel cable connector
• Manual reset with simple electrical test function

The MP54 operates based purely on differential pressure between two counteracting bellows, independent of absolute system pressure. When oil pressure differential drops below the set point, the integrated timer begins counting. If pressure is not restored within 90 seconds, the control opens the circuit and shuts down the compressor. Compatible with HCFC and HFC refrigerants including R22, R134a, R404A, R407 series, R448A, R449A, R507A, and R513A.