Built with a rugged aluminum body and high-temperature internal seals

Optimized Airflow: The 1650 RPM rating provides the high-velocity discharge necessary for high-efficiency AC and heat pump systems

this unit is built to manage the high-pressure demands of modern refrigerants

Always match the capacitance (uF/MFD) exactly

Industrial Durability: Machined from high-quality materials to resist corrosion and handle the thermal stresses of modern refrigerants

Carrier HN61HB545 Start Relay 321702-401 Built with a rugged aluminumThe Carrier HN61HB545 Start Relay is a mission critical potential relay designed for high starting torque applications in Carrier, Bryant, and Payne HVAC units. Engineered to provide the necessary phase shift for starting PSC and CSCR compressors, this HVAC start relay features a precise pick up and drop out voltage calibration to prevent capacitor overheating and winding damage. This genuine OEM Carrier replacement part ensures the compressor motor