Belimo CQKB24-SR-LL 24V Modulating Actuator with Spring Return

The Belimo CQKB24-SR-LL is a 24V modulating damper actuator designed for precise control of HVAC dampers in commercial building automation systems. This spring return actuator provides reliable fail-safe operation, automatically returning to its default position upon power loss.

Key Features:

• 24 VAC/VDC power supply for flexible installation
• Modulating control with 2-10 VDC or 4-20 mA control signal input
• Spring return mechanism for fail-safe positioning
• Low leak design for improved energy efficiency
• Compact, durable housing suitable for commercial HVAC applications
• Direct mounting to damper linkages for simplified installation

This actuator is ideal for applications requiring precise damper positioning with automatic spring return functionality, such as smoke control systems, economizer dampers, and ventilation control in commercial buildings. The dual control signal compatibility (voltage or current) provides flexibility for integration with various building management systems.