Siemens GRD221.1U 2-Position S/R Fire/Smoke Damper Actuator 120V

The Siemens GRD221.1U Fire/Smoke Damper Actuator functions to manage the operations of fire and smoke dampers integrated into HVAC systems by using 120V power. The 120V-powered mechanism operates to block fire and smoke from spreading through ductwork improving building safety and compliance. The actuator functions with commercial and industrial ventilation systems through its spring return feature which maintains automatic damper positioning when power supply fails. This actuator enables better air control and enhances system reliability and helps fulfill fire protection requirements.