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Reliable Signaling: The 1 N/O (Normally Open) contact configuration provides a clean circuit closure for system feedback and secondary load control
It maintains the same technical specifications and mounting footprint for a seamless swap
metallic particles
requiring a replacement Lennox limit switch
Is the 450277-001 compatible with R-410A systems
System Sensor ST-5 Sampling Tube Reliable Signaling: The 1 N/OThe System Sensor ST 5 is a 5 foot metal sampling tube engineered for high performance smoke detection in HVAC ducts ranging from 4 to 8 feet in width. Built with a durable rigid steel construction, this tube is essential for contractors installing or maintaining duct smoke detectors in commercial and industrial air handling systems. The ST 5 acts as the direct replacement for L 313 1, ensuring seamless integration into legacy systems without the need
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