Belimo BF120-2 Control

The Belimo BF120-2 is a robust fire and smoke damper actuator designed for critical safety applications in HVAC systems. Operating on a 120V AC power supply, this spring-return actuator provides reliable on/off control to ensure dampers return to their safety position during power loss or fire alarm triggers. Built to European specifications, the BF series delivers high torque performance, typically 18 Nm (159 in-lb), making it suitable for larger damper assemblies requiring high-tension closure. The steel housing and thermal sensor compatibility ensure the unit maintains structural integrity under extreme conditions. For contractors, the Belimo BF120-2 offers a simplified direct-coupled mounting process, reducing installation time on-site while maintaining strict compliance with safety ventilation standards. This motorized solution is essential for compartmentalization strategies, preventing the migration of toxic smoke through ductwork in commercial or industrial facilities.

• Fail-safe operation ensures damper closure via mechanical spring return during power interruptions.
• Compatible with thermal duct sensors for automatic triggering at specific temperature thresholds.
• High-torque output facilitates the movement of heavy-gauge fire dampers without stalling.
• Standardized form fit allows for straightforward replacement of legacy motorized actuators.
• Integrated dual auxiliary switches provide remote feedback on damper blade position.

What is the primary difference between the BF120-2 and standard fire actuators?
The BF120-2 is engineered specifically for the European market and high-torque requirements, ensuring it meets specific mechanical stress tests for smoke control systems.

Can this actuator be manually overridden during testing?
Yes, it features a manual crank mechanism that allows technicians to test damper movement during commissioning without power.

Is the power supply compatible with standard US 120V lines?
While it operates at 120V, verify the frequency (Hz) and mounting dimensions as this is a Euro-spec model which may differ from standard North American FSNF series footprints.

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Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.