Honeywell MS4809F1012 Two Position Damper Actuator

Spring return direct coupled actuators (DCA) for on/off damper control with an integral junction box. The actuator accepts an on/off signal from a single-pole, single-throw (SPST) controller. They are designed to operate reliably in smoke control systems requiring Underwriter's Laboratories Inc. UL555S ratings up to 350 F. Features: 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 for tight damper closure. Actuator holds rated torque at reduced power level. Die-cast aluminum housing. Housing design allows flush mounting to damper. Integral junction box with three conduit openings eliminates need for separate wiring box. High-temperature indicator included. Specifications: Actuator Type: Damper, Valve Application Type: Fire and Smoke Fail Safe Mode: Spring Return Control Signal: 2 position, SPST Supply Voltage: 100 to 250 Vac Shaft Adapter Type: Self Centering clamping Manual Operation: Manual Crank Mounting: Direct Coupled Frequency: 60 Hz, 50 Hz Rotational Stroke: 95 ¬+/- 3 degrees Rotational Stroke Adjustment: Mechanically limited 5 degree increments Spring Return Direction: By orientation Timing, Maximum Spring Return (sec): 15 sec Timing, Nominal Driving @ 60 Hz (sec): 15 Sec Spring Return Direction: By orientation Dimensions (in.): 9.72 in high x 3.94 in wide x 2.95 in deep Compatible Damper Shafts (in.): 3/8 to 1.06 in. round or 3/8 to 11/16 in. square Temperature Range, Ambient (F): 0 F to 130 F Operating Humidity Range (% RH): 5 to 95% RH, non-condensing Includes: Self-centering shaft adapter, 3mm crank