Trane CNT3785 Limit Switch Is the MARS 12788 compatible

Is the MARS 12788 compatible with 50Hz and 60Hz systems

Enhanced Durability: Engineered for long-cycle life in demanding HVAC environments

mitigating the risk of motor burnout in hermetic compressors

Key Benefits High-Temperature Durability: Specifically formulated EPDM material handles steam and hot water applications up to 300°F without degradation

ensuring the controller receives a true representation of supply or return air temperature

Trane CNT3785 Limit Switch Is the MARS 12788 compatibleThe Trane CNT3785 Limit Switch is a heavy duty, OEM replacement part engineered for precise thermal regulation in commercial gas electric packaged units. This Single Pole Single Throw (SPST), normally closed (NC) switch is factory calibrated to open at 170F, effectively interrupting the burner circuit to prevent heat exchanger damage during high temperature events. Featuring an 11 inch insertion depth, the CNT3785 provides accurate sensing within the