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Honeywell - MS4309F1005 - Smoke Damper Motor 120V Spg Rt Repl By M Honeywell - Smoke Damper Motor 120V Spg Rt Repl By Ms4309F 1005

Fast-acting, two-position actuator with 80 lb-in. CCW spring return 120 VAC 



Honeywell MS4209F 80 lb-in. (9Nm) torque, spring return direct-coupled, 120 Vac, CW actuator accepts two-position SPST control with an integral junction box and on/off signal from a SPST controller. Reliably operates in smoke control systems requiring UL555S ratings up to 350F.



  • Integral spring return ensures return torque level
  • Fifteen-second spring return timing
  • No special cycling required and no audible noise during long-term holding
  • Models available for 24, 120 and 230 Vac
  • Ninety-five degree angle of rotation for tight damper closure
  • Holds rated torque at reduced power level
  • Die-cast aluminum housing design allows flush mounting to damper and eliminates need for limit switches to reduce power consumption
  • Integral junction box with three conduit openings eliminates separate wiring box


Customer Rating: Not Rated Yet
Quick Order Number: 525
Manufacturer: Honeywell
Part Number: MS4309F1005/U
Weight: 5.68 lbs
Stocked Item*: No
Quantity Available*: 0
Price: $0.00

* If an order is placed where the item is a "Non-Stocked Item" or the quantity ordered is more than the quantity available, all items in stock will be shipped and the remainder of the items will be shipped as soon as we get the "backordered" items in.


Product Specifications

Product Specifications

Fire and Smoke
Dimensions (in.)
7.5 in high x 5.13 in wide x 3.32 in deep
Dimensions (mm)
192 mm high x 129 mm wide x 84 mm deep
Weight (lb)
6 lb
Weight (kg)
2.72 kg
Aluminum housing
Integral junction box with three 7/8 in. conduit openings (fittings not included)
Direct Coupled
60 Hz
Approvals, Underwriters Laboratories Inc.
UL873, Plenum Rated
Electrical Connections
Two color-coded leads
Operating Humidity Range (% RH)
5 to 95% RH, non-condensing
Supply Voltage
120 Vac +10%, -15%
Power Consumption
Driving-- 0.25A, 23W, Holding-- 0.13A, 7W
Shipping and Storage Temperature Range (F)
-40 F to 140 F
Shipping and Storage Temperature Range (C)
-40 C to +60 C
Approvals, CE
89/336/ECC, 73/23/EEC
Approvals, Canadian Underwriters Laboratories Inc.
cUL C22.2 No. 24-93
Ambient Temperature Range (F)
0 F to +130 F
Ambient Temperature Range (C)
-18 C to +55 C
Approvals, C-Tick
Environmental, Electrical or Ingress Protection Rating
Internal Auxiliary Switch
Maximum Noise Rating
Driving (dB(A) @ 1m)-- 80; Holding (dB(A) @ 1m)-- 20 (no audible noise)
95 ±3 degrees
Shaft Dimensions (in.)
3/8 to 1/2 in. square or round
Actuator Type
Control Signal
Two position; SPST
Fail Safe Mode
Spring Return
Torque Rating (lb-in.)
80 lb-in.
Torque Rating (Nm)
9 Nm
Spring Return Torque/Force (lb-in., lbf)
80 lb-in.
Spring Return Torque/Force (Nm, N)
9 Nm
Additional Torque Ratings (lb-in.)
Maximum Stall-- 240 lb-in.; Minimum Driving at 350 F-- 80 lb-in.
Additional Torque Ratings (Nm)
Maximum Stall-- 27 Nm; Minimum Driving at 175 C-- 9 Nm
External Auxiliary Switches Available
Yes, 32003532-005
Timing, Nominal
Driving @ 60 Hz-- 15 sec, 25 sec maximum
Spring Return Timing
Maximum-- 15 sec
Shaft Adapter Type
Aluminum Hub, four set screws
Shaft Dimensions (mm)
10 to 13 mm square/round
Spring Return Direction
Electrical Connections (in.)
16 in.
Electrical Connections (mm)
406 mm



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