The Trane SWT1277 Limit Switch is a critical safety component designed for precise thermal regulation in Trane and American Standard HVAC furnaces

Standard Fitting: Utilizes a universal thermocouple connector nut for compatibility with most residential Rheem and Ruud gas valves

This high-density

As a direct replacement part

The deluxe housing includes a color-coded blue manual test button and an override lever

MAMAC Systems TE-702-B-7-B Temperature Sensor The Trane SWT1277 Limit SwitchThe MAMAC Systems TE 702 B 7 B is a heavy duty duct temperature sensor engineered for precise thermal monitoring in high velocity HVAC environments. Featuring a 10,000 Ohm NTC Thermistor (Type III), this unit delivers highly accurate resistance to temperature curves essential for advanced building automation systems. The 6 inch 304 stainless steel probe is designed to minimize thermal logging and maximize response times within the airstream. Built for