Schneider Electric (Erie) 680-243-5 Switch While the 8 psi calibration

While the 8 psi calibration is factory-set

Simplified Integration: Includes a standard 1/4 inch barb connection and SPST logic for seamless electrical and pneumatic hookups

This switch acts as a thermal limit or freeze stat

you must use a contactor with a 24V coil instead

Industrial-Grade Build: Designed to withstand the thermal cycling common in outdoor condenser units and furnace cabinets

Schneider Electric (Erie) 680-243-5 Switch While the 8 psi calibrationThe Schneider Electric Erie 680 243 5 is a professional grade seasonal changeover switch designed for 2 pipe hydronic systems. This strap on thermostat switch utilizes a snap acting SPDT (Single Pole, Double Throw) contact form to automatically transition local terminal controls between heating and cooling modes. By monitoring the supply water temperature, it eliminates the need for manual seasonal intervention, ensuring the HVAC R system responds