The Siemens GCA121.1E is an electromotoric damper actuator designed for efficient and reliable control in HVAC systems. This actuator is engineered to manage air dampers with precision, ensuring optimal airflow and energy efficiency in various applications. With a torque capacity suitable for dampers up to approximately 3 square meters, it provides robust performance for medium to large-scale ventilation systems. The GCA121.1E operates on a 24V AC/DC power supply and features a 90-second runtime, making it a versatile choice for both new installations and retrofits. Its compact design allows for easy integration into existing systems, while its durable construction ensures long-lasting operation even in demanding environments. Ideal for commercial and industrial settings, the Siemens GCA121.1E damper actuator is a reliable component for maintaining effective climate control and air quality.