Danfoss 117u5015 Motor Start Capacitor 220V Series Fr

Product Description

The DANFOSS 117u5015 is a motor start capacitor engineered for HST (hard start) applications operating at 220 volts. Start capacitors provide the initial phase shift and torque boost needed to bring a compressor motor from standstill to running speed. Once the motor reaches operating speed, the capacitor is switched out of the circuit. This component is sized and rated specifically for Series FR compressors, making it a direct-fit replacement for technicians servicing refrigeration and light commercial cooling equipment. Licensed refrigeration mechanics and HVAC-R technicians handle installation as part of compressor service or hard-start kit upgrades.

This start capacitor is intended for HST application scenarios where compressors experience high back-pressure conditions or operate on circuits with low voltage variance, both common causes of hard-start faults. Series FR compressors from Danfoss are found in light commercial refrigeration systems, condensing units, and refrigerated display cases. Replacement of a failed or weakened start capacitor is a routine service task that restores proper motor starting torque and protects the compressor from thermal overload caused by prolonged start cycles.

Key Features

• Rated for 220-volt HST compressor start applications
• Engineered specifically for Danfoss Series FR compressors
• Provides phase shift and torque boost for reliable motor starting
• Direct OEM-style replacement reduces diagnostic time in the field
• Switches out of circuit after motor reaches operating speed, protecting against continuous-duty overload

Compatibility

Designed for use with Danfoss Series FR compressors in HST (hard start) configurations operating at 220 volts.

Installation Notes

Installation should be performed by a licensed HVAC-R technician or refrigeration mechanic. Disconnect and lock out all electrical power to the unit before servicing any capacitor. Capacitors can retain a charge even after power is removed — discharge the capacitor through a resistor before handling. Follow applicable NEC and local electrical code requirements for capacitor replacement and wiring terminations.

Technical Specifications

• Voltage Rating: 220 volts
• Application: HST (Hard Start) motor starting
• Compatible Compressor Series: Series FR

Standard Information

• Brand: DANFOSS
• Manufacturer Part Number: 117u5015