Honeywell Damper Actuators

The Honeywell MS Series Electric Actuators (Models: MS4105, MS4604, MS4609, MS8104, MS8109) are fast-acting, two-position actuators specifically designed for fire and smoke damper applications. Engineered for safety-critical HVAC systems, these actuators ensure quick and reliable operation during emergency conditions.

Featuring a spring return direct coupled actuator (DCA) design, they provide automatic fail-safe positioning in case of power loss, making them ideal for fire and smoke control systems. The actuator operates on an on/off control signal from a single-pole, single-throw (SPST) controller, ensuring simple and effective functionality.

With a wide voltage range of 24V AC to 230V AC, these actuators offer flexibility for various system requirements. They deliver multiple torque options (3.4Nm, 9Nm, 20Nm, up to 44 lb) to suit different damper sizes and applications. The reversible mounting design allows for both clockwise (CW) and counterclockwise (CCW) spring rotation, making installation convenient and adaptable.

Built to perform in challenging environments, the actuator operates efficiently within a temperature range of -18°C to +55°C. Its robust construction ensures durability, reliability, and long service life. These actuators are widely used in HVAC systems for fire and smoke control in commercial buildings, industrial facilities, and safety systems.

Key Features

• Fast-acting two-position (on/off) operation

• Spring return mechanism for fail-safe operation

• Suitable for fire and smoke damper control

• Wide voltage compatibility (24V AC to 230V AC)

• Multiple torque options for various applications

• Reversible mounting (CW & CCW rotation)

• Durable and reliable performance

Product Specifications

• Brand: Honeywell

• Actuator Type: Electric Actuator

• Structure: Fire Damper Actuator

• Model: MS4105, MS4604, MS4609, MS8104, MS8109

• Voltage: 24V AC – 230V AC

• Stroke Length: 2

• Torque: 3.4Nm, 9Nm, 20Nm, up to 44 lb

• Temperature Range: -18°C to +55°C

• Usage/Application: Fire & Smoke Control Systems

• Warranty: 1 Year

• Availability: In Stock

Applications

• Fire and smoke damper systems

• Commercial HVAC installations

• Industrial safety systems

• Building fire protection systems

Benefits

• Ensures safety during fire emergencies

• Automatic fail-safe operation on power loss

• Quick and reliable damper control

• Flexible installation and compatibility

• Long-lasting and low maintenance