Siemens – GJD121.1U Damper Actuator | Spring Return | 24 VAC | On/Off | 20 lb-inFire and Smoke Damper Actuator 20 lb-in 2-position control , Spring Return, 24VAC/DC compatible with built in Electronic Fuse Link capability. For use with combination fire and smoke dampers. Designed to meet UL555S.
Additional Information
Actuator TypeElectronic Fire and Smoke








