200936 - Miller 200936 Thermal Overload Switch 135C NC

Miller 200936 Thermostat Overview

The Miller 200936 is a precision-engineered thermostat designed to serve as a critical safety component within specific Miller welding power sources. As a Normally Closed (NC) thermal switch, it is configured to maintain a closed electrical circuit during normal operation, allowing the machine to function within its rated parameters. Upon reaching a critical temperature threshold of 135°C (approximately 275°F), the internal mechanism triggers to an Open state, effectively interrupting the control circuit or power output to prevent catastrophic thermal damage to internal components such as transformers and rectifiers.

Maintaining the integrity of your welding equipment's thermal protection system is vital for longevity and safety. Using genuine OEM parts like the Miller 200936 ensures that the thermal response times and temperature tolerances match the original engineering specifications of the machine. Generic replacements may not offer the same precise actuation point, potentially risking equipment failure or unnecessary downtime due to nuisance tripping. This unit comes equipped with terminals (