never undersize the amperage rating as it will lead to rapid contact failure

meaning it opens at 170

and Reznor Venturion series

If the ceramic is cracked or the metal is heavily pitted

Beyond thermal fatigue

Functional Devices RIBXGF Sensor never undersize the amperage ratingInstall the Functional Devices RIBXGF split core current sensor for reliable, non intrusive monitoring of AC loads in commercial HVACR and building automation systems. Designed for veterans in the field, this split core fixed current switch features a self powered design that eliminates the need for an external power supply, simplifying your installs in tight control panels. The RIBXGF current sensor handles a wide sensing range from 0. 35 to 150