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Rotary Actuators

MS81 Spring Return Direct Coupled Actuators

MS81 Spring Return Direct Coupled Actuators (DCA) are used within heating, ventilating, and air-conditioning (HVAC) systems. They can drive a variety of quarter-turn, final control elements requiring spring return fail-safe operation.

MS81 Spring Return Direct Coupled Actuators (DCA) are used within heating, ventilating, and air-conditioning (HVAC) systems. They can drive a variety of quarter-turn, final control elements requiring spring return fail-safe operation.

Features & Benefits:
  • 30 lb-in or 80 lb-in minimum driving torque at 350F (176C)
  • 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. (See Operation section.)
  • No audible noise during holding
  • Patent pending design eliminates need for limit switches to reduce power consumption
  • Models available for 24, 120, and 230V AC
  • 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 350F
  • Models available with SPST position-indicating switches (7 °, 85 ° stroke)
Certifications:
  • UL873
  • IEC 60730-1 and Part 2 “14
  • UL1097 for Double Insulation
  • CE Certification Low Voltage Directive 2006/95/EC
  • CE EMC 2004/108/EC
  • C-Tick N314

Others

  • Brand
    • Honeywell BMS NA

Others

  • Brand
    • Honeywell BMS NA
  • Brand : Honeywell BMS NA
Reference Guides
Name
Description
File Size
Date
Size
Cross Reference
application/pdf 214.89 KB
2/17/2022
214.89 KB
Replacement Guide
application/pdf 1.14 MB
2/17/2022
1.14 MB
Installation Instructions
Name
Description
File Size
Date
Size
Installation Instructions
application/pdf 1.09 MB
2/17/2022
1.09 MB
Installation Instructions
application/pdf 1.78 MB
2/17/2022
1.78 MB
Installation Instructions
application/pdf 125.56 KB
2/17/2022
125.56 KB
NOTICE D’INSTALLATION
application/pdf 1.87 MB
2/17/2022
1.87 MB
Wiring
application/pdf 525.49 KB
2/17/2022
525.49 KB
INSTALLATION INSTRUCTIONS
application/pdf 278.99 KB
2/17/2022
278.99 KB
Installation Instructions
application/pdf 410.04 KB
2/17/2022
410.04 KB
Installation Instructions
application/pdf 282.93 KB
2/17/2022
282.93 KB
Installation Instructions
application/pdf 141.52 KB
2/17/2022
141.52 KB
Installation Instructions
application/pdf 262.97 KB
2/17/2022
262.97 KB
Data Sheet
Name
Description
File Size
Date
Size
DONNÉES TECHNIQUES
application/pdf 236.12 KB
2/17/2022
236.12 KB
Product Data
application/pdf 1.77 MB
2/17/2022
1.77 MB
Product Data
application/pdf 171.74 KB
2/17/2022
171.74 KB
Product Data
application/pdf 864.82 KB
2/17/2022
864.82 KB
ДАННЫЕ ИЗДЕЛИЙ
application/pdf 830.61 KB
2/17/2022
830.61 KB
Product Data
application/pdf 1.12 MB
2/17/2022
1.12 MB
Engineering Specifications
Name
Description
File Size
Date
Size
Specification Data
application/pdf 242.83 KB
2/17/2022
242.83 KB
Specification Data
application/pdf 313.9 KB
2/17/2022
313.9 KB
SPECIFICATION DATA
application/pdf 627.39 KB
2/17/2022
627.39 KB
Specification Data
application/pdf 279.29 KB
2/17/2022
279.29 KB
Specification Data
application/pdf 306.55 KB
2/11/2022
306.55 KB
Specification Data
application/pdf 298.43 KB
2/11/2022
298.43 KB
Name
Description
File Size
Date
Size
Cross Reference
214.89 KB
2/17/2022
214.89 KB
Installation Instructions
1.09 MB
2/17/2022
1.09 MB
DONNÉES TECHNIQUES
236.12 KB
2/17/2022
236.12 KB
Installation Instructions
1.78 MB
2/17/2022
1.78 MB
Installation Instructions
125.56 KB
2/17/2022
125.56 KB
Specification Data
242.83 KB
2/17/2022
242.83 KB
NOTICE D’INSTALLATION
1.87 MB
2/17/2022
1.87 MB
Product Data
1.77 MB
2/17/2022
1.77 MB
Product Data
171.74 KB
2/17/2022
171.74 KB
Wiring
525.49 KB
2/17/2022
525.49 KB
Specification Data
313.9 KB
2/17/2022
313.9 KB
SPECIFICATION DATA
627.39 KB
2/17/2022
627.39 KB
Replacement Guide
1.14 MB
2/17/2022
1.14 MB
INSTALLATION INSTRUCTIONS
278.99 KB
2/17/2022
278.99 KB
Installation Instructions
410.04 KB
2/17/2022
410.04 KB
Specification Data
279.29 KB
2/17/2022
279.29 KB
Product Data
864.82 KB
2/17/2022
864.82 KB
Installation Instructions
282.93 KB
2/17/2022
282.93 KB
Installation Instructions
141.52 KB
2/17/2022
141.52 KB
Installation Instructions
262.97 KB
2/17/2022
262.97 KB
ДАННЫЕ ИЗДЕЛИЙ
830.61 KB
2/17/2022
830.61 KB
Product Data
1.12 MB
2/17/2022
1.12 MB
Specification Data
306.55 KB
2/11/2022
306.55 KB
Specification Data
298.43 KB
2/11/2022
298.43 KB
Image
SKU
Description
alt
MS8104F1210/U
Fire and Smoke Actuator, Spring Return, 30 lb-in, 24 Vac, 2-position (SPST), 2x Aux Switch
alt
MS8120F1200/U
Fire and Smoke Actuator, Spring Return, 175 lb-in, 20 Nm,24 Vac, 2-position (SPST), 2x Aux Switch
alt
MS8104F1010/U
Fire and Smoke Actuator, Spring Return, 30 lb-in, 24 Vac, 2-position (SPST)
alt
MS8120F1002/U
Fire and Smoke Actuator, Spring Return, 175 lb-in, 20 Nm,24 Vac, 2-position (SPST)
alt
MS8110W1206/U
Direct Coupled Actuator, Spring Return, 88 lb-in, 10 Nm, 24 Vac, 2-position (SPST), with 3 ft. cable, 2x Aux Switch
alt
MS8110W1008/U
Direct Coupled Actuator, Spring Return, 88 lb-in, 10 Nm, 24 Vac, 2-position (SPST), with 3 ft. cable
alt
MS8109F1210/U
Fire and Smoke Actuator, Spring Return, 80 lb-in, 24 Vac, 2-position (SPST), 2x Aux Switch
alt
MS8109F1010/U
Fire and Smoke Actuator, Spring Return, 80 lb-in, 24 Vac, 2-position (SPST)
alt
MS8120F1002/B
Fire and Smoke Actuator, Spring Return, 175 lb-in, 20 Nm,24 Vac, 2-position (SPST), Bulk Pack
alt
MS8105W1130/U
Direct Coupled Actuator, 5Nm Series, Spring Return, 24V AC, 6/3VA, 45sec, 2-Pos SPST, SPDT Switch, 3ft Whip