Commercial Building Controls : Dampers and Damper Actuators : Fire and Smoke Damper Actuators : 120 Vac Fire/Smoke Actuators : 80 lb-in. 120V : MS4120F1204/U
Honeywell fast-acting, spring-return, two-position 175 lb-in., 20 Nm, actuator
Overview
The Honeywell 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 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
- 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 Underwriters Laboratories Inc. UL555S ratings up to 350 F
- Models available with SPST position-indicating switches (7 degree, 85 degree stroke)
Product Specifications
- Application
- Fire and Smoke
- Dimensions (in.)
- 10.67 in high x 3.94 in wide x 2.95 in deep
- Dimensions (mm)
- 271 mm high x 100 mm wide x 75 mm deep
- Includes
- Self-centering shaft adapter, 3mm crank
- Weight (lb)
- 8 lb
- Weight (kg)
- 3.63 kg
- Materials
- Aluminum housing
- Comments
- Two integral 3/8 in. flexible conduit connections
- Item Type
- Product
- Mounting
- Direct Coupled
- Frequency
- 60 Hz
- Approvals, Underwriters Laboratories Inc.
- UL873, Plenum Rated
- Electrical Connections
- Teflon-jacketed cable
- Operating Humidity Range (% RH)
- 5 to 95% RH, non-condensing
- Supply Voltage
- 120 Vac 10%
- Power Consumption
- Driving-- 0.35A, 35W, Holding-- 0.15A, 10W
- 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)
- -40 F to +130 F
- Ambient Temperature Range (C)
- -40 C to +55 C
- Switch Ratings
- 250 Vac, 5 A res
- Regulatory Compliance Mark
- N314
- Environmental, Electrical or Ingress Protection Rating
- NEMA 2; IP54
- Internal Auxiliary Switch
- 2
- Maximum Noise Rating
- Driving (dB(A) @ 1m)-- 70; Holding (dB(A) @ 1m)-- 20 (no audible noise)
- Stroke
- 95 3 degrees
- Shaft Dimensions (in.)
- 3/8 to 1.06 in. round or 3/8 to 11/16 in. square
- Actuator Type
- Damper
- Control Signal
- Two position; SPST
- Fail Safe Mode
- Spring Return
- Torque Rating (lb-in.)
- 175 lb-in.
- Torque Rating (Nm)
- 20 Nm
- Spring Return Torque/Force (lb-in., lbf)
- 175 lb-in.
- Spring Return Torque/Force (Nm, N)
- 20 Nm
- Additional Torque Ratings (lb-in.)
- Maximum Stall-- 425 lb-in.; Minimum Driving at 350 F-- 175 lb-in.
- Additional Torque Ratings (Nm)
- Maximum Stall-- 48 Nm; Minimum Driving at 175 C-- 20 Nm
- External Auxiliary Switches Available
- No
- Timing, Nominal
- Driving @ 60 Hz (sec)-- 15 sec
- Spring Return Timing
- Maximum-- 15 sec
- Shaft Adapter Type
- Self-centering clamping
- Manual operation
- Manual crank
- Shaft Dimensions (mm)
- 10 to 27 mm round or 10 to 18 mm square
- Spring Return Direction
- By orientation
- Electrical Connections (in.)
- 40 in.
- Electrical Connections (mm)
- 1 m
