the QC-4 cartridge can be used in R-410A applications

This OEM replacement part features a fixed trip point at 145°F

it protects the start winding from thermal overload

Industrial Durability: The hermetically sealed aluminum case protects internal components from moisture and debris in harsh AC condenser environments

Reznor 96512 Limit Switch the QC-4 cartridge can beThe Reznor 96512 is a high precision high temperature limit switch designed as a critical safety component for commercial and industrial unit heaters. This auto reset limit switch operates within a precise thermal range of 140 220F, effectively monitoring internal plenum temperatures. Formulated to protect heat exchangers from thermal stress, the Reznor 140 220F auto limit opens the control circuit when temperatures exceed secondary limits and