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An auto-reset switch closes the circuit once it cools down
while applying higher voltages will lead to immediate winding failure
Quiet Operation: Precision-balanced blower wheel reduces vibration and resonance through the vent pipe
ensuring it is positioned above the minimum safe water level specified by the boiler manufacturer
MARS 39026 Limit Switch 321142-301 An auto-reset switch closes theThe MARS 39026 Limit Switch is a high performance L220 4 HVAC temperature control designed for precise thermal management in furnace and air handling systems. As an Open on Rise limit switch, this component is engineered to automatically interrupt the circuit when the temperature reaches the 220F (104C) cut out setpoint, ensuring system safety and preventing heat exchanger damage. Once the temperature drops to the 180F cut in threshold, the switch