The Belimo GM24A-SR is a robust and reliable rotary actuator designed for the precise control of air dampers in commercial HVAC systems. Engineered for large dampers up to approximately 8 m², it delivers a powerful 40 Nm of torque. This actuator operates on a 24V AC/DC power supply and utilizes a standard 2-10 VDC modulating control signal for accurate positioning, ensuring optimal airflow and energy efficiency. The unit features a brushless DC motor for long-lasting, quiet operation and includes overload protection. Its durable IP54-rated housing protects it from dust and splashing water, making it a dependable choice for various building automation applications.