Always verify ductwork sizing and check the drip loop on the wiring harness during installation

providing consistent shifting for efficient seasonal transitions

For industrial contractors

you can always upgrade the voltage rating as long as the 15 MFD capacitance remains the same

The compact housing is built to withstand demanding mechanical room environments while maintaining General Close-Off ratings

Siemens Building Technology 544-577-40 Sensor 30067439-890 Always verify ductwork sizing andThe Siemens 544 577 40 is a heavy duty liquid immersion temperature sensor engineered for precision monitoring in HVAC hydronic systems. This unit features a high accuracy 1k Ohm Platinum RTD (Ref. 375a Alpha) sensing element, providing stable and linear resistance output across a broad operating range of 0F to 250F ( 18C to 121C). Designed for direct mounting into piping systems, it includes a 4 inch stainless steel probe and a matched thermowell to