Reznor 85449 Limit Switch or visible ceramic cracking on

or visible ceramic cracking on the element surface

Can this switch replace a fixed temperature limit

Substantial Build Quality: Plated steel construction resists corrosion and mechanical fatigue in demanding HVACR environments

This RR Series relay features a 3PDT (3-pole double-throw) contact configuration and is a verified direct replacement for KUP-14A35-120 and KUP14A35-120 models

ensuring optimal thermal conductivity and superior corrosion resistance for both above-ground potable water and mechanical applications

Reznor 85449 Limit Switch or visible ceramic cracking onThe Reznor 85449 is a critical safety component designed for precise thermal regulation in commercial gas fired unit heaters and furnaces. This 140 200F Auto Limit Switch monitors internal air temperatures, functioning as a primary high limit safety by interrupting the burner circuit if the heat exchanger surpasses the 200F threshold. As an OEM replacement part, it ensures seamless compatibility with Reznor UDAP, UDAS, and UDX series heaters,