Danfoss 117U6019 Start Relay for 1/2 HP Compressors

The Danfoss 117U6019 is a current-operated starting relay designed for refrigeration and HVAC compressor applications. This HST-type relay is engineered to provide reliable motor starting assistance for 1/2 horsepower compressors operating on 220V power systems.

Key Specifications:

• Current rating: 9.3A continuous operation
• Pickup current: 12.1A
• Voltage: 220V, 50/60Hz frequency
• Application: 1/2 HP fractional reciprocating compressors
• Type: Current relay with HST configuration
• Weight: 0.07 lbs

This start relay is a genuine Danfoss component commonly used in commercial refrigeration equipment, walk-in coolers, reach-in freezers, and other refrigeration systems. The relay works by sensing the motor current to control the starting circuit, providing reliable engagement and disengagement of the start winding during compressor startup. Also known by the alternate designation F278 HST or F152 HST depending on application.