- Optional Built-In Electronic Fusible Link (EFL) Capability with Four Temperature Ratings: 165°F (74°C), 212°F (100°C), 250°F (121°C), 350°F (177°C)
- Fifteen-Second Operation at Rated Torque, Temperature and Voltage
- Pre-Cabled Teflon® Insulated Lead Wires
- Reversible Fail-Safe Spring Return
- Manual Override
- All Metal Housing
Intended for use on UL listed smoke control dampers and combination fire/smoke rated dampers, the OpenAir GND Series Direct Coupled, Fast-Acting, Two-position, Spring Electronic Actuators are available in 24 VAC/DC, 120 VAC, and 230 VAC models. The GND Series Spring Return Electronic Actuator is used for the control of dampers requiring up to 53 lb-in (6 Nm) driving torque. It is intended for control of UL listed smoke control dampers and combination fire/smoke HVAC dampers. This actuator is designed to meet the 2002 revisions to the UL 555/555S and the AMCA Standard 520 specifications.