AFB24-SR Belimo Actuator

Overview

The Belimo AFB24-SR is a high-torque spring return damper actuator designed for modulating fail-safe control of air dampers in commercial HVAC systems.

Features

• Proportional modulating control accepting standard 2 to 10 VDC signals
• Spring return fail-safe operation returns damper to default position upon power loss
• High torque rating for driving larger damper assemblies
• Brushless DC motor with automatic overload protection

Specifications

• Torque: 180 in-lb [20 Nm]
• Nominal Voltage: AC/DC 24 V
• Control Signal: 2 to 10 VDC modulating
• Actuator Type: Spring Return
• Power Consumption: 5 W running, 3 W holding

Applications

• Modulating air volume control and safety shut-off in HVAC ductwork
• Precise airflow regulation in commercial ventilation systems