Siemens Building Technology GVD321.1U 2-Position Fire & Smoke Damper Actuator S/R 200 lb-in 230 VAC

The Siemens Building Technology GVD321.1U Fire & Smoke Damper Actuator is designed to maintain airflow control in HVAC systems in case of fire and smoke. It is used for fire and smoke dampers, and it is controlled by a 2-position control signal. This is because the actuator has a spring-return feature that closes the damper when power is switched off. When it receives a 230 VAC signal, it will turn with 200 pound-inches of torque to open or close the damper accurately. Usually installed in ventilation systems, it contributes to the improvement of building safety and conformity. This actuator provides safety and security for emergency response, energy saving and durability in tough HVAC systems.