Siemens Building Technology GVD221.1U 2‑Position S/R On/Off Fire & Smoke Damper Actuator 200 in-lb 120 VAC

Siemens GVD221.1U Fire/Smoke Damper Actuator is a device for controlling fire and smoke dampers in HVAC systems. This actuator is 120 VAC, with a high torque to maintain a constant damper setting. It is for applications that need a clear open or closed with a 2 position control function. Perfect for situations with up to 95% relative humidity it works in multiple of the most extreme conditions. Interoperability with ordinary HVAC systems is provided by the 50/60Hz frequency range. A compact and powerful actuator Commonly used in fire and smoke control systems, dampers using it, help to contain smoke in fire conditions and ensure building safety.