These codes typically indicate the board is not sensing a pilot flame

This relay is technically rated to support motors with a capacity of up to 5 horsepower

the 4ALF series (Lead-Free) equivalent should be specified to meet strict weighted average lead requirements

Compatibility: Replaces specific Carrier HK42FZ series boards in residential furnaces

Eaton Cutler-Hammer XTOBXDIND Din Rail/Panel Mount 321894-708 These codes typically indicate theThe Eaton Cutler Hammer XTOBXDIND is a specialized IEC overload relay adapter designed for separate mounting of XT series control components. Engineered for Frame Size D bimetallic relays, this DIN rail mount adapter allows for independent installation, decoupled from the contactor. This is a critical solution in dense HVACR control panels where spatial constraints or specific wiring configurations require the relay to be positioned away from the main