Rolling door, fire door and security grille accessories for all Cornell products

Battery Back Up Devices

Available for fire door operators with integrated or added optional release device, these devices prevent fire doors from closing due to a power failure for up to 7 days.

A Battery Back Up Device for a closing system with an integrated release device also functions as a DC power source to keep local warning devices and detectors up and running during a power outage. 

In addition, you can program the Battery Back Up Device for an integrated release device to cycle the door a selected number of times should the sensing edge contact an obstruction during alarm signal AC power closing.