Danfoss 060B205791 Valve
The Danfoss 060B205791 (MP55) Differential Pressure Switch is a critical safety component designed specifically for protection against low oil pressure in refrigeration compressors using HCFC and non-flammable HFC refrigerants. This oil pressure safety control features a fixed 120-second thermal time delay relay, providing the necessary window for oil pressure to stabilize during startup while ensuring the compressor trips if the pressure differential falls below the 0.3 to 4.5 bar setpoint for too long. With its 36-inch capillary tube and 1/4 inch flare nut connection, this unit allows for flexible mounting and reliable sensing in heavy-duty HVACR mechanical systems.
Engineered for high-pressure environments, the Danfoss MP55 pressure switch operates with a maximum working pressure of up to 400 psig (28 bar). The internal bellows system reacts to the pressure difference between the oil pump discharge and the crankcase, protecting expensive reciprocating compressors from catastrophic bearing failure. This industrial-grade differential pressure cutout is essential for site technicians prioritizing system longevity and reliable refrigeration compressor protection.
- Adjustable Differential Range: Field-adjustable setpoint from 4.3 to 65 psi (0.3 to 4.5 bar) to suit specific manufacturer requirements.
- Integrated Time Delay: Fixed 120s delay prevents nuisance tripping during brief fluctuations or startup cycles.
- High Compatibility: Suitable for AC and DC applications with a robust electrical rating for standard control circuits.
- Durable Construction: Features 36" capillary tubing for vibration isolation and ease of installation in tight enclosures.
Common Contractor Questions:
Can I use the MP55 with ammonia systems?
No, the Danfoss 060B205791 is designed for use with fluorinated refrigerants (HCFC and HFC). For ammonia applications, a stainless steel bellows model (MP55A) is required.
How do I wire the 120-second delay relay?
The relay is typically wired through the compressor contactor circuit. If the differential pressure remains below the setpoint longer than two minutes, the thermal element heats up and trips the control power, requiring a manual reset.
What is the purpose of the 36-inch capillary?
The 36" capillary provides a flexible link between the compressor service ports and the switch, dampening mechanical vibrations that could lead to metal fatigue or refrigerant leaks over time.
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.
Original: $255.78
-65%$255.78
$89.52Danfoss 060B205791 Valve
The Danfoss 060B205791 (MP55) Differential Pressure Switch is a critical safety component designed specifically for protection against low oil pressure in refrigeration compressors using HCFC and non-flammable HFC refrigerants. This oil pressure safety control features a fixed 120-second thermal time delay relay, providing the necessary window for oil pressure to stabilize during startup while ensuring the compressor trips if the pressure differential falls below the 0.3 to 4.5 bar setpoint for too long. With its 36-inch capillary tube and 1/4 inch flare nut connection, this unit allows for flexible mounting and reliable sensing in heavy-duty HVACR mechanical systems.
Engineered for high-pressure environments, the Danfoss MP55 pressure switch operates with a maximum working pressure of up to 400 psig (28 bar). The internal bellows system reacts to the pressure difference between the oil pump discharge and the crankcase, protecting expensive reciprocating compressors from catastrophic bearing failure. This industrial-grade differential pressure cutout is essential for site technicians prioritizing system longevity and reliable refrigeration compressor protection.
- Adjustable Differential Range: Field-adjustable setpoint from 4.3 to 65 psi (0.3 to 4.5 bar) to suit specific manufacturer requirements.
- Integrated Time Delay: Fixed 120s delay prevents nuisance tripping during brief fluctuations or startup cycles.
- High Compatibility: Suitable for AC and DC applications with a robust electrical rating for standard control circuits.
- Durable Construction: Features 36" capillary tubing for vibration isolation and ease of installation in tight enclosures.
Common Contractor Questions:
Can I use the MP55 with ammonia systems?
No, the Danfoss 060B205791 is designed for use with fluorinated refrigerants (HCFC and HFC). For ammonia applications, a stainless steel bellows model (MP55A) is required.
How do I wire the 120-second delay relay?
The relay is typically wired through the compressor contactor circuit. If the differential pressure remains below the setpoint longer than two minutes, the thermal element heats up and trips the control power, requiring a manual reset.
What is the purpose of the 36-inch capillary?
The 36" capillary provides a flexible link between the compressor service ports and the switch, dampening mechanical vibrations that could lead to metal fatigue or refrigerant leaks over time.
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.
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Description
The Danfoss 060B205791 (MP55) Differential Pressure Switch is a critical safety component designed specifically for protection against low oil pressure in refrigeration compressors using HCFC and non-flammable HFC refrigerants. This oil pressure safety control features a fixed 120-second thermal time delay relay, providing the necessary window for oil pressure to stabilize during startup while ensuring the compressor trips if the pressure differential falls below the 0.3 to 4.5 bar setpoint for too long. With its 36-inch capillary tube and 1/4 inch flare nut connection, this unit allows for flexible mounting and reliable sensing in heavy-duty HVACR mechanical systems.
Engineered for high-pressure environments, the Danfoss MP55 pressure switch operates with a maximum working pressure of up to 400 psig (28 bar). The internal bellows system reacts to the pressure difference between the oil pump discharge and the crankcase, protecting expensive reciprocating compressors from catastrophic bearing failure. This industrial-grade differential pressure cutout is essential for site technicians prioritizing system longevity and reliable refrigeration compressor protection.
- Adjustable Differential Range: Field-adjustable setpoint from 4.3 to 65 psi (0.3 to 4.5 bar) to suit specific manufacturer requirements.
- Integrated Time Delay: Fixed 120s delay prevents nuisance tripping during brief fluctuations or startup cycles.
- High Compatibility: Suitable for AC and DC applications with a robust electrical rating for standard control circuits.
- Durable Construction: Features 36" capillary tubing for vibration isolation and ease of installation in tight enclosures.
Common Contractor Questions:
Can I use the MP55 with ammonia systems?
No, the Danfoss 060B205791 is designed for use with fluorinated refrigerants (HCFC and HFC). For ammonia applications, a stainless steel bellows model (MP55A) is required.
How do I wire the 120-second delay relay?
The relay is typically wired through the compressor contactor circuit. If the differential pressure remains below the setpoint longer than two minutes, the thermal element heats up and trips the control power, requiring a manual reset.
What is the purpose of the 36-inch capillary?
The 36" capillary provides a flexible link between the compressor service ports and the switch, dampening mechanical vibrations that could lead to metal fatigue or refrigerant leaks over time.
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.
