Danfoss 060B216491 Lube Oil Control

The Danfoss 060B216491 Lube Oil Control is a critical safety component designed for reciprocating compressors and refrigeration systems requiring precise differential pressure monitoring. As the direct replacement for the Danfoss 060B216466 and 060B2164, this MP54 oil differential pressure switch ensures reliable protection against mechanical failure due to low lubricating oil pressure. It features a fixed 45-second time delay relay, allowing the compressor to establish adequate oil flow during startup or temporary surges while preventing nuisance tripping. This control is compatible with HCFC, HFC, and non-flammable CO2 refrigerants, making it a versatile choice for commercial HVACR service. The SPDT electrical contact system provides clear signaling for both the compressor contactor and alarm circuits. Built with a robust bellows system, the 060B216491 is engineered to maintain calibration under high vibration, ensuring long-term operational stability in demanding plant environments.

Key Benefits

• Direct Interchangeability: Seamlessly replaces 060B216466 and older 060B2164 models without piping modifications.
• Reliable Time Delay: Integrated 45-second thermal relay prevents excessive compressor cycling during turbulent startup conditions.
• Universal Refrigerant Compatibility: Suitable for use with common high-pressure refrigerants, including R404A, R407C, and R507.
• Optimized Safety: Manual reset functionality ensures technical inspection of the lubrication system before restarting equipment.
• Durable Construction: High-grade bellows and electrical terminals rated for industrial duty cycles and contractor-grade reliability.

Common Questions

What is the fixed differential setting for this oil control?
The MP54 series typically operates with a differential pressure range focusing on 0.65 to 0.9 bar (approx. 9 to 13 psi) to ensure the oil pump maintains sufficient head over crankcase pressure.

Can the time delay be adjusted in the field?
No, the 45-second thermal time delay is factory-fixed to ensure consistent protection and prevent unauthorized tampering with safety parameters.

How do I wire this into an existing control circuit?
The unit utilizes standard terminals for L, M, and S (Line, Motor/Contactor, and Signal/Alarm) to integrate directly with most compressor control strings.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.