Siemens GND226.1U 53 lb-in, Spring Return Fire & Smoke Control Damper Actuator [New]

Siemens GND226.1U GND 2-Position, 53 lb-in, Spring Return Fire & Smoke Control Damper Actuator w/ Aux. Switches (120 Vac) - The OpenAir direct-coupled, 2-position, spring return electronic damper actuators are UL listed for smoke control dampers or for combination fire/smoke rated dampers. Actuators are designed to operate reliably in smoke control systems requiring Underwriter's Laboratories, Inc. UL555/555S rating when tested as an assembly with the damper and will meet requirements of UBC for 15 second opening and closing at 350 F .. Siemens. Siemens. GND226.1U.