The resistor is used to convert a 4-20mA control signal into a voltage signal that the actuator can process for proportional control

Heavy-Duty Construction: Includes integrated conduit protection for long-term reliability in commercial HVACR applications

The unit features a manual override lever

Direct Retrofit: Specifically engineered to replace legacy MA40-LF24-501 units without requiring mounting modifications

Carrier 350001-2032 Rollout Switch 320788-702 The resistor is used toThe Carrier 350001 2032 Rollout Switch is a mission critical safety limit designed for precise over temperature protection in residential and commercial gas furnaces. Engineered as a genuine Carrier Factory Authorized Part, this thermal cutoff operates as a manual reset SPST switch, calibrated to trip at a fixed threshold of 144C (291F). When flame rollout or excessive heat is detected in the burner compartment, the switch opens to interrupt the