you should consider the PSM series isolated variants

provided the temperature setpoints and bracket clearances match the original specs

it maintains original equipment specifications for voltage and contact ratings

Designed as the primary venting component for 1-pipe valve kits like the Macon OPSK

and commercial burners

Trane CNT3670 Limit Switch Els PW 17895 you should consider the PSMThe Trane CNT3670 is an essential OEM high limit switch designed for American Standard and Trane gas furnaces. This L225F CO limit switch functions as a critical safety component, monitoring the heat exchanger temperature to prevent dangerous overheating. Featuring a Single Pole Single Throw (SPST) configuration, the circuit is normally closed and triggers an open state when internal temperatures reach the 225 degree Fahrenheit trip point. Proper