Trane CNT3785 Limit Switch allowing contractors to choose between

allowing contractors to choose between a solid base for new installs or a ring base for retrofit applications—enabling you to secure the thermostat without even removing it from the wall

preventing unnecessary service calls for simple resets

as a Source1 part

For modulating steam

Installing these genuine Williams furnace parts ensures the equipment maintains its decibel rating and prevents premature failure of the motor bearings and support bracketry caused by excessive kinetic energy

Trane CNT3785 Limit Switch allowing contractors to choose betweenThe Trane CNT3785 Limit Switch is a heavy duty, OEM replacement part engineered for precise thermal regulation in commercial gas electric packaged units. This Single Pole Single Throw (SPST), normally closed (NC) switch is factory calibrated to open at 170F, effectively interrupting the burner circuit to prevent heat exchanger damage during high temperature events. Featuring an 11 inch insertion depth, the CNT3785 provides accurate sensing within the