Danfoss 060B216491 Lube Oil Control Differential Pressure Switch

The Danfoss 060B216491 is a differential pressure switch designed specifically for lube oil protection control in refrigeration compressor systems. This electromechanical safety control continuously monitors the differential pressure between the lubricating oil system and the suction side of the refrigeration system to protect compressors against low oil pressure conditions.

Key Features:

• Functions as a safety switch to protect refrigeration compressors from insufficient lubrication
• Built-in time delay relay prevents nuisance shutdowns during normal oil pressure fluctuations
• Manual reset button requires operator intervention after safety trip
• Integrated electrical test function eliminates the need for jumper wires during troubleshooting
• Reliable stainless steel bellows construction for long service life
• Compatible with HCFC and non-flammable HFC refrigerants
• 1/4" flare connection fittings for standard refrigeration system installation

Operation:

The control measures the pressure difference between two counteracting bellows connected to the oil pressure side and the low-pressure (suction) side of the system. If the oil differential pressure drops below the set point, the time delay relay is activated. If pressure is not restored within the delay period, the control opens its contacts to stop the compressor, preventing damage from inadequate lubrication.

Applications:

Ideal for commercial and industrial refrigeration systems including cold storage facilities, supermarket refrigeration, industrial chillers, and process cooling applications where compressor protection is critical.