Belimo CQB24-3-T On/Off Spring Return Damper Actuator - 24V 75s/90

The Belimo CQB24-3-T is a 24-volt spring return damper actuator designed for reliable on/off control in commercial HVAC applications. This floating control actuator features a 75-second timing for 90-degree rotation, providing consistent damper positioning for air volume control in heating, ventilation, and air conditioning systems.

Key Features:

• 24V AC/DC power supply for flexible installation
• On/off spring return operation for fail-safe positioning
• 75-second running time for full 90-degree rotation
• Floating control action for simple two-position damper control
• Compact, durable construction suitable for VAV boxes, fan coil units, and air handlers
• Direct mount connection for quick installation on damper shafts
• Manual override capability for maintenance and testing

This actuator is ideal for zone damper control, ventilation applications, and economizer systems where reliable on/off damper positioning is required. The spring return function ensures the damper returns to a safe position during power failure, making it suitable for life safety and smoke control applications.