This relay is primarily utilized on Secop (formerly Danfoss) SC and NF series compressors operating on 115V power supplies

preventing leaks and alignment issues

If the switch trips repeatedly under normal load

and supporting digital I/O circuits in demanding environments

engineered to maintain the integrity of the unit's electrical systems

System Sensor ST-5 Sampling Tube This relay is primarily utilizedThe 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