Supco ht80 High Torque Relay

Product Description

The SUPCO ht80 is a high torque relay designed for use in single-phase electric motor starting applications. Hard-starting motors that fail to reach operating speed under load conditions require a reliable starting relay to engage the start winding and then drop out cleanly once the motor is running. The ht80 fills that role, providing the extra torque assist needed to get stubborn compressor and motor loads spinning. It is typically installed by HVAC technicians and refrigeration service pros as a retrofit or replacement component in systems where the run capacitor alone cannot overcome high-load starting conditions.

The ht80 is suited for residential and light commercial refrigeration and air conditioning systems where compressor start assist is required. Common install scenarios include reach-in coolers, condensing units, window AC units, and small split-system compressors that exhibit hard-starting symptoms such as tripped breakers, humming without starting, or thermal overload trips. It connects in parallel with the run capacitor and the compressor start winding to boost starting torque.

Key Features

• High torque design for demanding compressor start applications
• Connects in parallel with the existing run capacitor for simple wiring integration
• Suitable for retrofit and replacement in single-phase compressor circuits
• Helps reduce nuisance breaker trips and thermal overload events caused by hard-starting conditions

Compatibility

Designed as an OEM-style replacement or add-on starting relay for single-phase compressors in residential and light commercial refrigeration and HVAC applications.

Installation Notes

Installation should be performed by a qualified HVAC or refrigeration technician. Disconnect and lock out all power to the unit before servicing any electrical components. The relay connects in parallel with the run capacitor and the compressor start terminal; follow the wiring diagram supplied with the unit or on the equipment nameplate. Do not operate the relay outside its rated electrical parameters.

Technical Specifications

• Relay Type: High Torque Starting Relay
• Application: Single-Phase Compressor Start Assist

Standard Information

• Brand: SUPCO
• Manufacturer Part Number: ht80