Danfoss 7773123 Belt
The Danfoss 7773123 Belt Type Crankcase Heater is a critical preventative component designed for large-scale refrigeration and air conditioning compressors, specifically the SH380 and SY/SZ240-380 series. Operating at 460V with a 130W power rating, this crankcase heater belt ensures that the compressor oil remains at an optimal temperature during off-cycles. Maintaining elevated oil temperatures is essential for technicians to prevent refrigerant migration and subsequent oil dilution, which can lead to catastrophic mechanical failure upon startup. This Danfoss compressor accessory provides uniform heat distribution around the base of the crankcase, facilitating a smooth cold start and maintaining necessary lubrication viscosity. As a professional-grade HVACR heating element, the 7773123 is engineered to withstand the demanding environments of commercial rooftop units and industrial chillers. Its robust construction and precise electrical specifications make it the standard choice for maintaining system integrity and long-term compressor reliability in high-voltage applications.
Key Benefits- Prevents Lubrication Failure: Eliminates oil dilution caused by refrigerant condensing in the crankcase during shutdown.
- High-Voltage Compatibility: Specifically rated for 460V systems, providing 130W of consistent thermal output.
- Optimized for Danfoss SH and SY/SZ: Tightly fits the SH380 and SY/SZ240-380 compressor housings for maximum heat transfer.
- Reduces Mechanical Stress: Ensures the compressor starts with warm, viscous oil, significantly reducing bearing wear.
- Certified Compliance: Meets UL, CE, and UKCA standards for industrial safety and performance.
How does this heater prevent compressor damage?
By keeping the oil warmer than the rest of the system, it prevents refrigerant from migrating to the crankcase and mixing with the oil, ensuring the pump receives pure lubricant instead of a diluted mixture.
Is the 7773123 compatible with 400V systems?
While often listed alongside 400V specifications in international catalogs, this specific Danfoss 7773123 model is optimized for 460V North American industrial power standards to deliver the intended 130W output.
When should the crankcase heater be energized?
For maximum protection, the heater should be energized whenever the compressor is cycled off. Most technicians wire these heaters through a normally closed contact on the compressor contactor.
This item is not eligible for free shipping.
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: $80.49
-65%$80.49
$28.17Danfoss 7773123 Belt
The Danfoss 7773123 Belt Type Crankcase Heater is a critical preventative component designed for large-scale refrigeration and air conditioning compressors, specifically the SH380 and SY/SZ240-380 series. Operating at 460V with a 130W power rating, this crankcase heater belt ensures that the compressor oil remains at an optimal temperature during off-cycles. Maintaining elevated oil temperatures is essential for technicians to prevent refrigerant migration and subsequent oil dilution, which can lead to catastrophic mechanical failure upon startup. This Danfoss compressor accessory provides uniform heat distribution around the base of the crankcase, facilitating a smooth cold start and maintaining necessary lubrication viscosity. As a professional-grade HVACR heating element, the 7773123 is engineered to withstand the demanding environments of commercial rooftop units and industrial chillers. Its robust construction and precise electrical specifications make it the standard choice for maintaining system integrity and long-term compressor reliability in high-voltage applications.
Key Benefits- Prevents Lubrication Failure: Eliminates oil dilution caused by refrigerant condensing in the crankcase during shutdown.
- High-Voltage Compatibility: Specifically rated for 460V systems, providing 130W of consistent thermal output.
- Optimized for Danfoss SH and SY/SZ: Tightly fits the SH380 and SY/SZ240-380 compressor housings for maximum heat transfer.
- Reduces Mechanical Stress: Ensures the compressor starts with warm, viscous oil, significantly reducing bearing wear.
- Certified Compliance: Meets UL, CE, and UKCA standards for industrial safety and performance.
How does this heater prevent compressor damage?
By keeping the oil warmer than the rest of the system, it prevents refrigerant from migrating to the crankcase and mixing with the oil, ensuring the pump receives pure lubricant instead of a diluted mixture.
Is the 7773123 compatible with 400V systems?
While often listed alongside 400V specifications in international catalogs, this specific Danfoss 7773123 model is optimized for 460V North American industrial power standards to deliver the intended 130W output.
When should the crankcase heater be energized?
For maximum protection, the heater should be energized whenever the compressor is cycled off. Most technicians wire these heaters through a normally closed contact on the compressor contactor.
This item is not eligible for free shipping.
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 7773123 Belt Type Crankcase Heater is a critical preventative component designed for large-scale refrigeration and air conditioning compressors, specifically the SH380 and SY/SZ240-380 series. Operating at 460V with a 130W power rating, this crankcase heater belt ensures that the compressor oil remains at an optimal temperature during off-cycles. Maintaining elevated oil temperatures is essential for technicians to prevent refrigerant migration and subsequent oil dilution, which can lead to catastrophic mechanical failure upon startup. This Danfoss compressor accessory provides uniform heat distribution around the base of the crankcase, facilitating a smooth cold start and maintaining necessary lubrication viscosity. As a professional-grade HVACR heating element, the 7773123 is engineered to withstand the demanding environments of commercial rooftop units and industrial chillers. Its robust construction and precise electrical specifications make it the standard choice for maintaining system integrity and long-term compressor reliability in high-voltage applications.
Key Benefits- Prevents Lubrication Failure: Eliminates oil dilution caused by refrigerant condensing in the crankcase during shutdown.
- High-Voltage Compatibility: Specifically rated for 460V systems, providing 130W of consistent thermal output.
- Optimized for Danfoss SH and SY/SZ: Tightly fits the SH380 and SY/SZ240-380 compressor housings for maximum heat transfer.
- Reduces Mechanical Stress: Ensures the compressor starts with warm, viscous oil, significantly reducing bearing wear.
- Certified Compliance: Meets UL, CE, and UKCA standards for industrial safety and performance.
How does this heater prevent compressor damage?
By keeping the oil warmer than the rest of the system, it prevents refrigerant from migrating to the crankcase and mixing with the oil, ensuring the pump receives pure lubricant instead of a diluted mixture.
Is the 7773123 compatible with 400V systems?
While often listed alongside 400V specifications in international catalogs, this specific Danfoss 7773123 model is optimized for 460V North American industrial power standards to deliver the intended 130W output.
When should the crankcase heater be energized?
For maximum protection, the heater should be energized whenever the compressor is cycled off. Most technicians wire these heaters through a normally closed contact on the compressor contactor.
This item is not eligible for free shipping.
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.
