Schneider Electric (Barber Colman) MP-424 Proportional Actuator Refrigerant The adjustable high limit (100–220°F)

The adjustable high limit (100–220°F) and low limit (110–200°F) dials

Features automatic reset functionality for seamless system protection without manual intervention

though upright mounting is recommended for optimal sensitivity

allowing you to tailor the flame pattern specifically to the host appliance for maximum thermal transfer

Schneider Electric (Barber Colman) MP-424 Proportional Actuator Refrigerant The adjustable high limit (100–220°F)The Schneider Electric (Barber Colman) MP 424 Proportional Actuator is a heavy duty non spring return actuator designed for the precise positioning of dampers, globe valves, and ventilation flaps in commercial HVACR systems. Operating on 120V AC power, this unit delivers a consistent 60 lb in torque to ensure reliable mechanical movement across a 90 degree rotation. Engineers often specify the MP 424 as a direct replacement for Barber Colman EA 51,