Danfoss 117U4129 Starting Relay with Klixon Overload 115V

The Danfoss 117U4129 is a current-type starting relay with integrated Klixon overload protector designed for 115V refrigeration compressor applications. This combination relay and overload protection device provides reliable starting assistance and motor protection for single-phase hermetic compressors commonly found in refrigerators, freezers, and other refrigeration equipment.

Key Features:

• Current-operated starting relay for hermetic compressor motors
• Integrated Klixon overload protector for thermal motor protection
• 115V AC voltage rating
• Compact design mounts directly to compressor terminals
• Automatic reset overload protection
• Compatible with fractional horsepower refrigeration compressors

This starting relay works by sensing the current draw during compressor startup. When the motor reaches running speed and current drops, the relay contacts open to disconnect the start winding. The Klixon overload provides protection against locked rotor conditions, excessive current draw, and high motor temperatures, helping prevent compressor damage and extending equipment life.