As the direct replacement for 90-0630-21320-532

depending on the specific furnace data plate requirements

Look for signs of "cooking" (discoloration)

it includes a 100 PSI MOP (Maximum Operating Pressure) charge

Wrapped Construction: Provides smooth engagement with v-belt sheaves and reduces noise levels in sensitive environments

IDEC Relays RH1B-ULDC24V Relay R-448A As the direct replacement forAs a veteran tech in the HVACR field, you know that reliability in control panels often comes down to the quality of your "ice cube" relays. The IDEC RH1B ULDC24V is a cornerstone of the RH series compact power relay lineup, engineered for high duty cycle industrial automation and HVAC control systems. This SPDT (1 Form C) relay handles a substantial 10A switching capacity, making it ideal for managing motor loads, lighting circuits, and solenoid