Trane CNT3511 Limit Switch 320074-702 automatically modulating outdoor air dampers

automatically modulating outdoor air dampers based on enthalpy or dry-bulb temperature data

Repeated failure usually indicates a 24V short to ground

ensuring stable operation in demanding indoor air handler applications

It features a robust SPST (Single Pole Single Throw) configuration and is rated for use in 24V and 240V AC control circuits

Trane CNT3511 Limit Switch 320074-702 automatically modulating outdoor air dampersThe Trane CNT3511 is a commercial grade 120F CO Auto Limit Switch designed for precise thermal regulation and safety in high demand HVAC systems. As a single pole single throw (SPST) normally closed (N C) device, this component provides critical circuit interruption when internal plenum temperatures exceed the 120 degree Fahrenheit threshold. Engineered for automatic reset functionality, the CNT3511 eliminates the need for manual intervention once