GJD121.1U | Siemens Industry | Actuators & Dampers

All Siemens fire/smoke actuators are UL 555S certified. The damper manufacturers carry the UL 555S certifications with their assemblies (damper plus actuator). These actuators provide 15-second open/closed operation and 30-second motor drive operation at rated torque, temperature and voltage. Both actuators are integrated with a Siemens electronic fusible link with four temperature ratings: 165ºF, 212ºF, 250ºF and 350ºF.

Siemens Industry