Honeywell – MS4104F1010/B MSxx04F 30 lb-in. and MSxx09F 80 lb-in. Fire and Smoke Damper Actuators

The MS4104, MS4109, MS4604, MS4609, MS8104 and MS8109 Fast-Acting, Two-Position Actuators are 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 & Benefits:

30 lb-in. (3.4 Nm) or 80 lb-in. (9 Nm) 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

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

Models available with SPST position-indicating switches (7°, 85° stroke).

Certifications:

Designed to operate reliably in smoke control systems requiring Underwriter’s Laboratories Inc UL555S ratings up to 350°F

Non-UL marked models available

Honeywell MS4104F1010/B — The MS4104, MS4109, MS4604, MS4609, MS8104 and MS8109 are spring return direct coupled actuators (DCA) for Fire and Smoke dampers. Discontinued by Honeywell — no longer in the current range. PartnerPLC sources new, surplus and discontinued Honeywell parts — request a quote for price, condition and lead time.

Specifications