and WeatherKing condensing units

or threaded directly onto the rolled threads

Durable Construction: Heavy-duty housing and terminal pins designed to withstand high-vibration HVAC environments

the contacts are rated for 1/3 HP at 120-240 VAC (N/O) and 1/6 HP (N/C)

Whether used for steam boiler safety or potable water level management

Trane CNT1662 High Limit and WeatherKing condensing unitsThe Trane CNT1662 High Limit is a critical safety component designed for precise thermal regulation within furnace and air handler heat exchangers. Built with an L250F SPST NC C High limit configuration, this switch acts as a failsafe by monitoring supply plenum temperatures and interrupting the 24V control circuit if levels exceed the 250F threshold. This immediate shutdown of the gas valve helps prevent structural damage to the primary heat