Description
The Honeywell MS8110A1206 is a direct-coupled, two-position spring-return actuator designed for HVAC damper and valve control applications. Operating at 24 VAC with 88 in-lb torque output, it features a fail-safe spring-return mechanism, dual auxiliary switches, and a rugged metal housing for long-term reliability in ventilation and air-handling systems.
Technical Specifications
| Condition |
New/Never Used Surplus |
| Brand |
Honeywell |
| Category |
HVAC |
| Part Number |
MS8110A1206 |
| Subcategory |
HVAC Actuator |
| Series |
MS8000 Series |
| Type |
Direct-Coupled Spring-Return Actuator |
| Control Signal |
Two-Position (SPST) |
| Supply Voltage |
24 VAC (±20 %) |
| Power Consumption |
30 VA |
| Torque Output |
88 in-lb (10 Nm) |
| Rotation Angle |
95° ± 3° |
| Drive Time (Power On) |
45 seconds |
| Spring Return Time |
20 seconds |
| Motor Type |
DC motor with brushes |
| Manual Override |
Crank handle with locking function |
| Auxiliary Switches |
2 SPDT |
| Shaft Coupling |
Self-centering clamp adapter |
| Mounting Orientation |
Direct or reverse acting, any position |
| Enclosure Rating |
NEMA 2 / IP54 |
| Noise Level |
< 50 dB at 1 m |
| Life Expectancy |
60,000 cycles / 1.5 million repositions |
| Operating Temperature |
–22 °F to +150 °F (–30 °C to +65 °C) |
| Operating Humidity |
5 % to 95 % RH, non-condensing |
| Compliance |
UL (cUL), CE, C-Tick, Plenum-Rated |
| Weight |
7.00 lbs |
Information About MS8110A1206
The MS8110A1206 is part of Honeywell’s MS8000 Series spring-return direct-coupled actuators, used to position dampers or valves in heating, ventilating, and air-conditioning systems requiring automatic return to a fail-safe position. This actuator is rated at 30 VA power consumption and produces 88 in-lb (10 Nm) torque, suitable for medium to large dampers or valves. It accepts a two-position control signal and offers manual override capability with a crank handle. Its self-centering shaft adapter accommodates round or square shafts, while an anti-rotation bracket and enclosed wiring terminals simplify mounting and installation. UL-listed and plenum-rated, the actuator provides precise 95° ± 3° rotation with reliable spring-return operation in case of power loss.
Key Features:
- High Torque Output: Provides 88 in-lb (10 Nm) torque for reliable positioning of medium to large HVAC dampers.
- Spring-Return Fail-Safe: Automatically returns the actuator to a default position during power loss for safety.
- Two-Position Control: Operates via SPST control signal for open/close or on/off applications.
- Manual Override: Equipped with a hand crank for manual positioning during setup or emergency operation.
- Self-Centering Shaft Adapter: Ensures secure coupling and smooth motion across a wide shaft size range.
- Dual Auxiliary Switches: Enable external status indication or control interlocking.
- Rugged Metal Housing: Provides NEMA 2 (IP54) protection suitable for plenum installation environments.
- Quiet and Durable Operation: Less than 50 dB noise level and rated for 60,000 cycles / 1.5 million repositions.
- Wide Temperature Range: Operates from –22 °F to +150 °F (–30 °C to +65 °C) at 5 to 95 % RH.
- Certified and Plenum-Rated: UL (cUL), CE, and C-Tick approved for commercial HVAC installations.
The MS8110A1206 delivers proven Honeywell reliability and fail-safe performance for mission-critical HVAC actuation needs.
