The MS4120F, MS4620F, MS8120F, S2024-F, and S20230-F Fast-Acting, Two-Position Actuators are spring return direct coupled actuators (DCA) for on/off damper control.
FEATURES OF MS4620F
Minimum driving torque: 175 lb-in (20 Nm) at 350°F (176°C)
Reversible mounting for clockwise (CW) or counterclockwise (CCW) spring rotation