magnetic door holders

magnetic door holders are essential electromagnetic door releasing devices engineered to keep heavy fire, smoke barrier, and pedestrian doors safely open during normal facility operations. linked directly to a building's fire alarm control panel (facp), these electromagnetic wall, floor, and flush-mount holders instantly release door leaves upon alarm activation or power loss, enabling automatic door closure to prevent smoke migration and satisfy NFPA 80 and NFPA 101 life-safety mandates. common products and their uses include;

• flush-mount magnetic door holders: recessed low-profile electromagnetic assemblies designed for clean architectural integration in hospital corridors, schools, and commercial office hallways.
• surface-mount magnetic door holders: heavy-duty wall-mounted units ideal for drywall or masonry installations where recessed junction boxes are unfeasible, delivering up to 55 lbs of holding force.
• floor-mount magnetic door holders: single and double-sided floor pedestals designed for wide corridors or open areas where adjacent mounting walls are unavailable.
• tri-voltage magnetic releases: flexible low-voltage electromagnetic holders operating on 12vdc, 24vac/dc, or 120vac inputs, simplifying field wiring compatibility across diverse building power systems.
• catch plate & extension armature assemblies: swivel armature plates and adjustable extension rods engineered to compensate for door alignment angles and deep jamb reveals.
• integrated fire alarm release relays: dedicated low-voltage power cut modules triggered directly by the fire alarm panel to instantly drop armature power during an emergency evacuation event.