Modine 5H0749760007 Limit Switch

The Modine 5H0749760007 Limit Switch measures internal air temperature within the heat exchanger cabinet and sends a signal to the control board to shut down the burner when temperatures exceed the preset safety threshold. A bimetallic disc element responds to thermal changes by breaking the electrical circuit, cutting power to the burner before unsafe conditions in HVAC systems. Seated within the air circulation path of unit heaters and warm air furnaces, it mounts directly onto the heat exchanger surface without requiring additional wiring modifications. Accurate thermal response prevents heat exchanger damage and reduces the system faults at the point of demand.