Durable Thermal Resistance: Manufactured from industrial-grade materials designed for localized high-temperature exposure

OEM Compatibility: Guaranteed fit for Reznor HVAC equipment

J-Box compatible mounting ensures a streamlined installation for HVAC contractors

extending the operational life of your heating system

it integrates seamlessly into various control sequences

IO Hvac Controls iO-WWR480 Relay 326058-758 Durable Thermal Resistance: Manufactured fromThe iO WWR480 Warning Watchdog is a professional grade voltage monitoring relay engineered specifically for 440 480V commercial HVAC units. Designed to be installed directly within the service compartment of a condensing unit, this SPDT relay provides critical protection for the compressor contactor by monitoring incoming power quality. As a veteran technician knows, phase imbalances and voltage spikes in 480V systems are leading causes of premature