Lennox 37J56 Circuit Breaker Switch providing critical freeze protection or

providing critical freeze protection or defrost termination cycles within the refrigeration circuit

The unit is built with a 24VAC coil and is rated for 30 amps inductive or 40 amps resistive loads

While a DPDT relay can often replace a SPDT relay by using only one set of contacts

Leaks at the front header gasket often indicate a clogged heat exchanger

Lennox 37J56 Circuit Breaker Switch providing critical freeze protection orThe Lennox 37J56 Circuit Breaker Switch (also identified as 37J5601) is an OEM grade fuseholder type thermal circuit breaker engineered for high precision overcurrent protection in residential and commercial HVAC systems. Rated for 3 Amps at 250V, this single pole thermal breaker serves as a critical safety component, protecting transformers (T1) and control boards from electrical damage. Designed with a robust panel mount housing, it features a push