219343 - Miller 219343 NTC Thermistor 30K Ohm with 18-Inch Lead

Precise Thermal Monitoring for Welding Equipment

The Miller 219343 is a high-precision NTC (Negative Temperature Coefficient) Thermistor designed specifically for Miller Electric welding power sources and industrial equipment. As a critical component in the thermal management system of your machinery, this device changes its electrical resistance in response to temperature fluctuations, providing the control board with real-time data regarding the unit's operating heat.

Rated at 30,000 Ohms (30K) at 25 degrees Celsius, this thermistor is calibrated to match the specific logic curves of Miller control boards. Using a generic sensor with incorrect resistance values can lead to inaccurate temperature readings, causing the machine to either shut down prematurely due to false overheating signals or, more dangerously, fail to shut down during an actual thermal event. This OEM part ensures that your equipment operates within its safe thermal envelope, protecting expensive inverter components and transformers from heat damage.

The unit comes with an 18.00-inch lead, providing ample length to route the sensor from the heat sink or component being monitored back to the main control PCB. The pre-terminated assembly allows for straightforward installation during maintenance or repair procedures. Whether you are troubleshooting a thermal overload error or performing preventative maintenance on a fleet of industrial welders, the Miller 219343 provides the reliability and accuracy required for professional applications.

By utilizing genuine Miller replacement parts, you maintain the integrity of the manufacturer's original engineering. This thermistor is built to withstand the harsh electrical and environmental conditions often found inside industrial welding equipment, ensuring long-term durability and consistent performance.