Rheem/Ruud RXBH-24A05J – 5 kW Electric Heater Kit with Circuit Breaker (208–240 V, 1 Phase)

The Rheem/Ruud RXBH-24A05J is a 5 kW electric heater kit engineered to deliver reliable, supplemental electric heat to compatible air handler systems in residential and light commercial HVAC applications. Specifically designed for use with select Rheem and Ruud air handlers, this factory-authorized OEM accessory ensures seamless mechanical and electrical integration, making it an ideal upgrade or replacement for auxiliary heat.

This kit includes three staggered heating elements totaling 5 kW output, and a factory-installed 2‑pole circuit breaker for added protection and simplified service. A built-in sequencer efficiently stages the heat load to reduce startup amperage, while the temperature limit switches provide thermal overload protection, ensuring safe operation under all conditions.

Constructed with galvanized steel, the RXBH-24A05J resists corrosion and is engineered for quick field installation via slide-in configuration and color-coded wiring, reducing labor and potential error. It connects to standard 208–240 V single-phase electrical service and is UL/cUL certified for quality assurance and code compliance.

Ideal for installations where outdoor heat pumps require electric backup during colder weather or as a standalone heat source, this unit is perfect for climate zones with variable winter conditions. It is also compatible with multi-position air handlers in upflow, downflow, and horizontal installations.