Thermal Protection: A high-grade stainless steel jacket protects the internal elements from corrosive flue gases and thermal fatigue

preventing liquid slugging and ensuring the compressor operates within manufacturer-specified parameters

making it a drop-in replacement for most industrial and HVAC general purpose relays using 1/4" spade connectors

Precise Thermal Response: Fixed 200 degree F trip point (typically +/- 12°F) ensures shutoff before high-limit conditions cause cabinet damage

000 AFC fault protection rating for contractor peace of mind

Sensus 143-16-021-11 Spring Thermal Protection: A high-grade stainlessThe Sensus 143 16 021 11 Spring is a critical component for fine tuning the outlet pressure of Sensus 243 12 gas regulators. This orange black color coded spring is specifically engineered to provide a calibrated pressure range of 10" to 18" w. c. (water column), ensuring precise downstream delivery in commercial and industrial combustion systems. Designed for a seamless fit within the 243 12 series, it allows technicians to convert or maintain