MS4120F1006 : Honeywell Damper Actuator Spring Return, Fast-Acting, Two-Position, 175 in-lb (20 Nm), 120 VAC, for Fire and Smoke Dampers

Honeywell Damper Actuator, Spring Return , Fast-Acting , Two-Position, 175 lb-in (20 Nm), 120 Vac, for Fire and Smoke Dampers. These Fast-Acting, Two-Position Actuators are line volt (120V), 80 lb-in., spring return direct coupled actuators (DCA) for Fire and Smoke dampers (on/off control). The actuator accepts an on/off signal from a single-pole, single-throw (SPST) controller. Reversible mounting allows actuator to be used for either clockwise (cw) or counterclockwise (ccw) spring rotation.

Features:
80 lb-in. (5.9 N•m) minimum driving torque at 350 F (176 C)
Reversible mounting facilitates use in either clockwise (cw) or counterclockwise (ccw) spring rotation
Integral spring return ensures level of return torque
Fifteen-second spring return timing
No special cycling required during long-term holding
No audible noise during holding
Patent pending design eliminates need for limit switches to reduce power consumption
Models available for 24, 120, and 230 Vac
Ninety-five degree angle of rotation
Actuator holds rated torque at reduced power level
Die-cast aluminum housing
Housing design allows flush mounting to damper
Designed to operate reliably in smoke control systems requiring Underwriter’s Laboratories Inc. UL555S ratings up to 350 F
Includes Two integral 3/8 in. flexible conduit connections as well as a Self-centering shaft adapter, 3mm crank