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Rotary Actuators

24 Vac Fire and Smoke Actuator

The Honeywell Fast-Acting, Two-Position Actuators are 24 V, 30 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.

Honeywell's Fast-Acting, Two-Position 24 Vac Fire & Smoke Actuators are spring return direct coupled actuators (DCA) with an integral junction box for on/off damper 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 return and are designed to operate reliably in smoke control systems requiring Underwriter’s Laboratories Inc. UL555S ratings up to 350°F if applicable.

Features & Benefits:
  • 30 lb-in. (3.4 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
  • Designed to operate reliably in smoke control systems requiring Underwriter’s Laboratories Inc. UL555S ratings up to 350 F
  • Models available with SPST position-indicating switches (7 degree, 85 degree stroke)
Certifications:
  • UL873, Plenum Rated
  • cUL C22.2 No. 24-93
  • NEMA 1, IP40
Others
Name
Description
File Size
Date
Size
Replacement Guide
1.14 MB
8/19/2021
PDF 1.14 MB
Cross Reference
214.89 KB
8/19/2021
PDF 214.89 KB
Installation Instructions
1.78 MB
8/19/2021
PDF 1.78 MB
INSTALLATION INSTRUCTIONS
278.99 KB
8/19/2021
PDF 278.99 KB
Installation Instructions
282.93 KB
8/19/2021
PDF 282.93 KB
Wiring
525.49 KB
8/19/2021
PDF 525.49 KB
Installation Instructions
141.52 KB
8/19/2021
PDF 141.52 KB
Installation Instructions
262.97 KB
8/19/2021
PDF 262.97 KB
Installation Instructions
125.56 KB
8/19/2021
PDF 125.56 KB
Installation Instructions
410.04 KB
8/19/2021
PDF 410.04 KB
Product Data
1.77 MB
8/19/2021
PDF 1.77 MB
Product Data
171.74 KB
8/19/2021
PDF 171.74 KB
Specification Data
298.43 KB
8/19/2021
PDF 298.43 KB
Specification Data
242.83 KB
8/19/2021
PDF 242.83 KB
Specification Data
313.9 KB
8/19/2021
PDF 313.9 KB
Specification Data
306.55 KB
8/19/2021
PDF 306.55 KB
Specification Data
279.29 KB
8/19/2021
PDF 279.29 KB
Name
Description
File Size
Date
Size
Replacement Guide
1.14 MB
8/19/2021
PDF 1.14 MB
Cross Reference
214.89 KB
8/19/2021
PDF 214.89 KB
Installation Instructions
1.78 MB
8/19/2021
PDF 1.78 MB
INSTALLATION INSTRUCTIONS
278.99 KB
8/19/2021
PDF 278.99 KB
Installation Instructions
282.93 KB
8/19/2021
PDF 282.93 KB
Wiring
525.49 KB
8/19/2021
PDF 525.49 KB
Installation Instructions
141.52 KB
8/19/2021
PDF 141.52 KB
Installation Instructions
262.97 KB
8/19/2021
PDF 262.97 KB
Installation Instructions
125.56 KB
8/19/2021
PDF 125.56 KB
Installation Instructions
410.04 KB
8/19/2021
PDF 410.04 KB
Product Data
1.77 MB
8/19/2021
PDF 1.77 MB
Product Data
171.74 KB
8/19/2021
PDF 171.74 KB
Specification Data
298.43 KB
8/19/2021
PDF 298.43 KB
Specification Data
242.83 KB
8/19/2021
PDF 242.83 KB
Specification Data
313.9 KB
8/19/2021
PDF 313.9 KB
Specification Data
306.55 KB
8/19/2021
PDF 306.55 KB
Specification Data
279.29 KB
8/19/2021
PDF 279.29 KB
Image
SKU
Description
alt
MS8120A1007/U
Actuator, 2-Position or SPST, 175lb-in, 20Nm, Direct Coupled
alt
MS8105A1030/U
Direct Coupled Actuator, 5Nm Series, Spring Return, 24V AC, 6/3VA, 45sec, 2-Pos SPST
alt
MS8105A1138/U
Direct Coupled Actuator, 5Nm Series, Spring Return, 24V AC, 6/3VA, 45sec, 2-Pos SPST, SPDT Switch
alt
MS8120W1205/U
Actuator, 2-Position or SPST, 175lb-in, 20Nm, Direct Coupled, 2 Auxiliary Switches, 3ft Whip
alt
MS8105A1038/U
Direct Coupled Actuator, 5Nm Series, Spring Return, 24V AC, 6/3VA, 45sec, 2-Pos SPST
alt
MS8110A1008/U
Actuator, 2-Position or SPST, 88lb-in, 10Nm, Direct Coupled
alt
MS8120A1205/U
Actuator, 2-Position or SPST, 175lb-in, 20Nm, Direct Coupled, 2 Auxiliary Switches
alt
MS8120W1007/U
Actuator, 2-Position or SPST, 175lb-in, 20Nm, Direct Coupled, 3ft Whip
alt
MS8110A1206/U
Actuator, 2-Position or SPST, 88lb-in, 10Nm, Direct Coupled, 2 Auxiliary Switches
alt
MS8103A1038/U
Direct Coupled Actuator, 3Nm Series, Spring Return, 24V AC, 6/3VA Driving, 45sec, 2-Position SPST