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Danfoss 120Z0378 460V 56W Surface Crankcase Heater with Bottom Insulation

Manufacturer

Picture for manufacturer Danfoss

Part Number

120Z0378
6 reviews
Sale Price

$153.37

2 left at this price

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Usually delivered within 2 days

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Product Details

The Danfoss 120Z0378 is a 460V, 56W surface-mount crankcase heater with bottom insulation designed for use with refrigeration and HVAC compressors. Crankcase heaters are a critical component in refrigeration systems, preventing liquid refrigerant migration into the compressor oil during off cycles — protecting the compressor from damaging slugging at startup.

This surface-style heater wraps around the exterior of the compressor crankcase, applying gentle, consistent heat to maintain oil temperature. The integrated bottom insulation helps focus heat where it is needed most and improves energy efficiency by reducing heat loss.

Key Features:

  • Voltage: 460V AC
  • Wattage: 56W
  • Heater Style: Surface mount (wrap-around)
  • Bottom Insulation: Included for improved thermal efficiency
  • Prevents refrigerant migration into compressor oil during off-cycle periods
  • Protects compressor integrity at startup by maintaining proper oil viscosity
  • Designed to Danfoss quality and reliability standards for commercial refrigeration and HVAC applications

The Danfoss 120Z0378 is engineered for compatibility with a wide range of compressor models used in commercial refrigeration, air conditioning, and heat pump systems. Always verify voltage and wattage requirements against your system specifications prior to installation.

Good service and good price.

Shopping took longer than I thought

Great place for tires

We found a tire here that was hard to find and it was shipped quickly. Great experience and would use this company again.

Quick service

It's the information I needed for my boat motor. The only issue I had with this maintenance manual was the way the manual was finished. I've worked the the graphic arts industry for 50 years and am well versed in print finishing. The book will no doubt stay together, however there is excessive glue on the spine as the cover wraps around the front/back that distracts from the overall appearance.

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