Always verify the temperature stamp on your existing part before installation

There is no technical difference between the two models

and the 42S Series pump controllers

making it an essential component for interlock safety circuits and proving airflow in combustion systems

Danfoss 120Z0466 Crankcase Heater 319848-301 Always verify the temperature stampThe Danfoss 120Z0466 is a professional grade belt type crankcase heater engineered specifically for high capacity refrigeration and AC compressors. Operating at 460 volts with a 65 watt power draw, this surface sump heater maintains oil temperature above the refrigerant dew point, effectively preventing liquid migration and ensuring safe startup during low ambient conditions. Designed for versatility, the adjustable belt fits compressor diameters