Edwards Signaling 1504-AQN5 electromagnetic fire door holder securely holds a fire-rated door open until the building’s fire alarm is activated. Designed to integrate with Edwards signaling systems, it provides controlled access in commercial environments while maintaining dedicated fire safety protocols. As an electromagnetic hold-open device, it releases the door when the fire alarm activates, then allows the door to return to a closed position after conditions are cleared. The model number 1504-AQN5 identifies this specific unit in Edwards’ family of fire door control accessories.
