Belimo FSLF24-S-FC Fire and Smoke Damper Actuator

Description

Belimo FSLF24-S-FC Fire and Smoke Damper Actuator Overview

The Belimo FSLF24-S-FC is a dedicated fire and smoke damper actuator engineered for life-safety applications in commercial and industrial HVAC systems. Designed to meet the stringent demands of fire and smoke control, this actuator provides dependable spring-return fail-safe operation, ensuring dampers move to their safe position automatically upon loss of power or control signal — a critical requirement in emergency scenarios.

Key Features

• Spring-return fail-safe design ensures automatic damper closure on power loss
• 24 VAC/DC supply voltage for broad compatibility with building automation and fire alarm systems
• Compact, direct-coupled design eliminates the need for crank arms and linkages
• Rated for use with UL 555 and UL 555S listed fire and smoke dampers
• Auxiliary switch (FC) provides end-position feedback for system monitoring and integration
• Overload protection with automatic reset for extended actuator life
• Rugged housing suitable for demanding commercial environments
• Manual override function for commissioning and maintenance convenience

Life-Safety Compliance

The FSLF24-S-FC is purpose-built to comply with NFPA 90A and NFPA 92 requirements for fire and smoke control systems. Its UL-listed performance ensures it meets the code requirements demanded by inspectors, engineers, and authorities having jurisdiction (AHJ) on commercial construction and retrofit projects.

Auxiliary Switch (FC) Functionality

The integrated auxiliary switch (FC) delivers reliable end-position feedback, enabling building automation systems and fire alarm control panels to confirm damper position. This feature supports system diagnostics, alarm integration, and code-compliant position verification without additional external components.

Installation & Application

• Direct-couple mounting for fast, tool-friendly installation
• Compatible with round and rectangular fire and smoke dampers
• Suitable for new construction and retrofit applications
• Ideal for use in air handling units, ductwork, and smoke control zones
• Works seamlessly with Belimo and third-party BAS/fire alarm systems

Why Choose Belimo

Belimo is a globally recognized leader in actuator, valve, and sensor technology for HVAC applications. Their fire and smoke actuator line is trusted by mechanical contractors, system integrators, and building owners for its proven reliability, ease of installation, and long service life in critical life-safety environments.