Direct Coupled Damper Actuators—Fire and Smoke
MS4209F; MS4309F; MS4709F; MS4809F; MS8209F; MS8309F
Fast-Acting, Two-Position Actuators, 80 lb-in
The MS8309F is a 80 lb-in (9Nm), spring return direct-coupled,
24 Vac, CCW actuator that accepts two position (SPST) 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.
• 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
Actuator Type: Damper
Rotational Stroke: 95 ±3 degrees
Fail Safe Mode: Spring Return
Torque Rating: 80 lb-in. (9 Nm)
Minimum Driving Torque at 350 F: 80 lb-in.
Spring Return Torque: 80 lb-in. (9 Nm)
Dimensions, Approximate: 7.5 in high x 5.13 in wide x 3.32 in deep
(192 mm high x 129 mm wide x 84 mm deep)
External Auxiliary Switches Available: Yes, 32003532-005
Number of Internal Auxiliary Switch: 0
Environmental Rating: NEMA1
Frequency: 60 Hz
Mounting: Direct Coupled
Maximum Noise Rating, Holding (dBA @ 1m): 20 (no aud ble noise)
Maximum Noise Rating, Driving (dBA @ 1m): 80
Timing (seconds)
Maximum
Spring
Return
(sec) Driving Holding (inch) (m)
Product Number
MS4209F1007/U Two position;
MS4309F1005/U Two position;
MS4709F1014/U Two position;
MS4809F1012/U Two position;
MS8209F1003/U Two position;
MS8309F1001/U Two position;
Control
Signal
SPST
SPST
SPST
SPST
SPST
SPST
Maximum
Driving
@ 60 Hz
25 sec 15 sec 15 sec 0.25A,
25 sec 15 sec 15 sec 0.25A,
25 sec 15 sec 15 sec 0.13A,
25 sec 15 sec 15 sec 0.13A,
25 sec 15 sec 15 sec 23 VA 7 VA 24 Vac
25 sec 15 sec 15 sec 23 VA 7 VA 24 Vac
Nominal
Driving
@ 60 Hz
Compatible Damper Shafts: 3/8 to 1/2 in. square or round
(10 to 13 mm square/round)
Shaft Adapter Type: Aluminum Hub, four set screws
Materials: Aluminum housing
Operating Humidity Range (% RH): 5 to 95% RH, non-condensing
Ambient Temperature Range: 0 F to +130 F (-18 C to +55 C)
Storage Temperature Range: -40 F to 140 F (-40 C to +60 C)
Weight: 6 lb (2.72 kg)
Comments: Integral junction box with three 7/8 in. conduit openings
(fittings not included)
Approvals
CE: 89/336/ECC, 73/23/EEC
C-Tick: N314
Underwriters Laboratories, Inc: UL873, Plenum Rated
Canadian Underwriters Laboratories, Inc: cUL C22.2 No. 24-93
Power
Consumption
23W
23W
23W
23W
0.13A, 7W 120 Vac
0.13A, 7W 120 Vac
0.09A, 7W 230 Vac
0.09A, 7W 230 Vac
Supply
Voltag e
+10%, -15%
+10%, -15%
±10%
±10%
+20%, -10%
+20%, -10%
Electrical
Connections
Two c o lo r coded leads
Two c o lo r coded leads
Appliance
cable
Appliance
cable
Two c o lo r coded leads
Two c o lo r coded leads
Electrical
Connection
Length
39 in. 1 m CW
39 in. 1 m CCW
39 in. 1 m CW
39 in. 1 m CCW
39 in. 1 m CW
39 in. 1 m CCW
Spring
Return
Direction
392 customer.honeywell.com 70-6910