a lack of audible "click" during activation

you must match the RPM

06 inches and square shafts from 3/8 to 11/16 inches

For a complete HVAC fuel conversion

Does this switch require manual intervention after it trips

Schneider Electric (Erie) AG23D020 Actuator 322057-301 a lack of audible "click"The Schneider Electric (Erie) AG23D020 Actuator is a heavy duty 208Vac PopTop actuator engineered for precise terminal unit control in commercial hydronic systems. This two position spring return motor is designed for normally open (N O) operation, providing a mechanical fail safe in the event of power loss. Built with a hysteresis synchronous motor, this zone valve actuator ensures consistent torque and extended service life when managing hot or