MARS 39230 Limit 321142-301 Whether you are replacing a

Whether you are replacing a failed contactor in a specialized heating system or integrating high-current control into a new build

While a higher HP motor can often handle the load of a lower HP motor

making it a versatile choice for general service tasks

While this is a standard 120V SPST relay

MARS 39230 Limit 321142-301 Whether you are replacing aThe MARS 39230 Adjustable Limit Switch is a critical high temperature safety control designed for precise HVAC furnace limit monitoring. Engineered for professional contractors, this SPST open on rise switch provides dependable upper limit protection in furnaces, unit heaters, and commercial ductwork. Featuring a versatile 210 250 degree Fahrenheit adjustable range, it allows technicians to calibrate the exact cutout point required for specific heat