Schneider Electric (Barber Colman) M573-5108 Piston Damper Actuator Els PW 29614 this thermostat lock box is

this thermostat lock box is a direct-fit solution for the Emerson/White-Rodgers 1C20

This specific Erie PopTop compatible model features a hysteresis synchronous motor with a "lost motion" drive mechanism

Simplified Installation: Complete 2-panel kit reduces field labor time during complex damper section assembly

perfect fit

Schneider Electric (Barber Colman) M573-5108 Piston Damper Actuator Els PW 29614 this thermostat lock box isThe Schneider Electric M573 5108 is a heavy duty pneumatic piston damper actuator designed for the precise positioning of air dampers in commercial HVAC systems. Built for long term reliability in the field, this 3 inch stroke actuator features an 8 to 13 psig spring range, ensuring consistent performance in both proportional and two position applications. The unit is engineered for right angle mounting and comes standard with a reinforced mounting