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Belimo NFB24-S Actuator: High-Performance Damper Control

The Belimo NFB24-S actuator is a cutting-edge solution for precise on/off and fail-safe control of HVAC dampers. Engineered for demanding environments, this actuator is designed to deliver exceptional performance and reliability. With its robust construction and user-friendly features, it is an ideal choice for commercial and industrial HVAC applications.

Key Features and Specifications

The NFB24-S operates on a versatile 24 VAC/DC power supply and provides a substantial 90 in-lb of torque, ensuring efficient and powerful operation. Its reliable spring return action guarantees secure air-tight damper closure during power loss, making it a fail-safe option for critical applications. Additionally, the actuator features two built-in SPDT auxiliary switches, offering flexible system interfacing and enhanced safety.

Practical Uses and Benefits

With its compatibility with dampers up to 1.05 inches in diameter, the NFB24-S is suitable for a wide range of applications. The reversible direction of rotation allows for easy installation in both clockwise and counterclockwise orientations. The actuator's compact dimensions of 6.4 inches L x 12.05 inches W x 4.3 inches H make it space-efficient and easy to integrate into existing systems. Key benefits include:

• True spring return operation for secure damper closure
• Compatibility with dampers up to 1.05 inches in diameter
• Built-in auxiliary switches for safety interfacing