Belimo CMB24-3-T Non Fail-Safe Damper Actuator

Description

The Belimo CMB24-3-T is a compact, non fail-safe damper actuator engineered for precise HVAC damper control in commercial and light industrial building automation systems. Operating on AC/DC 24V power, this actuator delivers 18 in-lb (2 Nm) of torque with floating point and on/off control capabilities — making it a versatile solution for VAV systems, air handling units, and ventilation damper applications. With a wide rotation range of up to 287.5° and a running time of 35 seconds per 90°, the CMB24-3-T ensures smooth, reliable damper positioning. Its energy-efficient design draws only 1W during operation and 0.2W in holding mode, reducing overall energy consumption in your building automation setup. Rated NEMA 1 / UL Enclosure Type 1 and capable of operating in temperatures from -22°F to 122°F (-30°C to 50°C), this actuator is built for dependable performance across a broad range of installation environments.

Features

• 18 in-lb [2 Nm] Torque — Reliable force for light to medium-duty commercial damper applications
• AC/DC 24V Universal Power Input — Compatible with a wide range of building automation and HVAC control systems
• Floating Point / On/Off Control — Flexible control options for both two-position and modulating damper operation
• Ultra-Low Power Consumption — Only 1W running / 0.2W holding for energy-efficient continuous operation
• Wide Rotation Range up to 287.5° — Accommodates a variety of damper configurations and geometries
• 35-Second Run Time per 90° — Smooth, controlled actuation speed for precise damper positioning
• Magnetic Manual Override — Allows gear train disengagement via magnet for easy manual positioning during commissioning or maintenance
• NEMA 1 / UL Enclosure Type 1 Rated — Suitable for indoor HVAC installations in standard commercial environments
• Wide Operating Temperature Range (-22°F to 122°F) — Reliable performance in both cold and warm mechanical room conditions
• Compact, Tool-Free Mounting — Quick installation on standard damper shafts with compatible Belimo CM Series accessories