disc-style OEM furnace limit switch engineered for high-precision thermal monitoring in residential and light commercial air handlers

The 120VAC coil operates efficiently at 20

It is an essential component for any technician performing targeted gas pressure troubleshooting or equipment retrofits requiring reliable Maxitrol RV47D-1/2 specifications for appliance safety

Testing involves checking for electrical continuity across the terminals when the furnace is cold

KMC Controls STE-1451 Sensor disc-style OEM furnace limit switchThe KMC Controls STE 1451 is a professional grade outside air temperature sensor designed for precise ambient monitoring in building automation systems. Built around a high accuracy 10,000 ohm Type III thermistor, this sensor provides the reliable resistance to temperature data required for critical HVAC functions like economizer control, chiller dispatch, and weather compensated heating resets. The STE 1451 is housed in a rugged, NEMA 4X (IP65)