Rheem-Ruud 42-21593-02 Sequencing Relay Proper installation ensures the unit

Proper installation ensures the unit meets original manufacturer safety protocols and maintains factory performance standards

If power is interrupted at any point during the timing cycle

Universal Application: Compatible with various Reznor BE and FE series unit heaters

As a primary furnace safety control

and MPR-581x actuators

Rheem-Ruud 42-21593-02 Sequencing Relay Proper installation ensures the unitFor service technicians managing multi stage electric heat or residential blower delays, the Rheem Ruud 42 21593 02 Sequencing Relay functions as a critical OEM control component. This 24V SPDT Sequencing Relay is engineered with a C65 95 timing specification, ensuring precise contact closure and opening cycles to prevent line side surges during startup. The device features a single pole double throw configuration, allowing for versatile field wiring