The Kidde 1508-AQN5 electromagnetic door holder keeps fire-rated doors open during normal building operation and releases instantly when the fire alarm system cuts power. Surface wall-mount design with multi-voltage 24-120VAC/DC input and 25 lb holding force - a straightforward drop-in for commercial fire door compliance work.
Built for the commercial installer
Multi-voltage operation (24VDC through 120VAC) covers both low-voltage and line-voltage installations with one SKU - no separate transformer required. UL and ULC listed for fire door hold-open service. Fail-safe design releases the door on power loss or fire alarm activation, meeting code requirements for fire-rated door assemblies.
Key features
- Fail-safe release: door closes automatically when power is removed by fire alarm signal or power loss
- Multi-voltage input (24-120VAC/DC): single SKU covers low-voltage and line-voltage installations
- Surface wall mount: mounts directly to wall surface adjacent to fire door
- 25 lb holding force: reliable hold on standard commercial fire doors
- UL and ULC listed for fire door hold-open service
- Brushed aluminum finish: durable, low-profile appearance for commercial environments
System requirements
Connects to the building fire alarm system or a dedicated power circuit interrupted on alarm. The holder operates in the normally-energized (hold-open) state and releases when power is cut. Compatible with any FACP that provides a supervised NAC or relay output for door holder release.
How does an electromagnetic door holder release on fire alarm?
What voltage does the 1508-AQN5 require?
What holding force does this door holder provide?
Is this door holder UL Listed?
What fire alarm panel compatibility does this require?
Spec Sheet
