Resideo HPSR104 Switching Relay 323055-751 75" diameter fits most factory

75" diameter fits most factory motor lead configurations and mounting straps

Helps provide additional starting torque

Durable Construction: Built to withstand commercial and residential thermal cycling within Carrier-family furnaces

making it the go-to component for contractors installing Temp-Stat thermostats in 240VAC environments

Resideo HPSR104 Switching Relay 323055-751 75" diameter fits most factoryThe Resideo HPSR104 is a robust four zone switching relay designed for professional hydronic applications. This 120V pump zoning panel provides precise control for up to four circulator pumps, integrating a dedicated priority zone for domestic hot water (DHW) calls. Engineered for versatility, it is fully compatible with most thermostats, including power stealing, electromechanical, and modern smart thermostats like the T6 Pro. Each thermostat