Danfoss 120Z0459 Crankcase Heater – 27W PTC, 230-600V Universal Compressor Heater

The Danfoss 120Z0459 crankcase heater is a 27-watt PTC (Positive Temperature Coefficient) type designed for compressor protection in refrigeration and HVAC systems. With a broad operating voltage range of 230-600 volts, it’s suitable for 1-, 2-, and 4-cylinder compressors and helps prevent refrigerant migration and oil dilution for reliable start-up and longer compressor life.

Key Features:

• Power output: 27 watts

• Operating voltage range: 230 to 600 volts AC

• PTC heater technology for self-regulating temperature control

• Designed for 1-, 2-, and 4-cylinder compressor models

• Protects crankcase oil from refrigerant migration and condensation

• Compact design for easy mounting near compressor housing

• Ideal for commercial and industrial HVAC/R applications