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Aluminum US28-689
LCN Commercial Magnetic Door Holders
2 products
LCN commercial magnetic door holders are used to hold doors open during normal operating conditions while maintaining code-critical release behavior when alarm systems are activated. The SEM 7800 family includes floor, surface, and recessed wall-mounted magnet options designed for reliable performance on smoke barrier and labeled fire doors.
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Aluminum US28-689
LCN commercial magnetic door holders are used to hold doors open during normal operating conditions while maintaining code-critical release behavior when alarm systems are activated. The SEM 7800 family includes floor, surface, and recessed wall-mounted magnet options designed for reliable performance on smoke barrier and labeled fire doors.
Key Features
- Fail-safe operation: the magnets hold the door while electrical current is present, and release when the electrical current is interrupted (including alarm conditions).
- Heavy-duty die-cast housing for long-term durability in commercial openings.
- Tri-voltage design (12/24/120) to support common field electrical requirements (model-dependent).
- Holding force for typical applications (SEM 7800 Series is described as 35 lbs of holding force).
- Multiple mounting styles: recessed wall mount, surface wall mount, and floor mount configurations to match door and frame details.
- Designed for pocket door compatibility on applicable models (the SEM 7800 Series notes that magnets are suitable for pocket door installation, depending on model).
Key Benefits
- Improves safety during alarms by releasing held doors when fire alarm panels enter an alarm condition (so doors perform manually when power is interrupted).
- Supports accessibility and flow by keeping doors open for foot traffic, carts, and staff movement during daily operations.
- Protects labeled openings: the series is described as UL listed for smoke barrier or labeled fire doors and tested/certified under ANSI A156.15.
- Reduces maintenance with robust housings and purpose-built armature designs for dependable hold-and-release cycles.
Applications
- Healthcare and senior living where doors must hold open for movement but release instantly during alarm events.
- Schools, offices, and commercial corridors for consistent door control across high-traffic openings.
- Facilities with smoke barrier or fire-rated openings require compliant door holding magnets with safe release behavior.
- Pocket door installations where magnet geometry and model suitability matter.
Popular LCN Commercial Magnetic Door Holders
- LCN SEM7850 689 Recessed Wall Mount Magnet: The LCN SEM7850 (689) is a recessed wall mount magnetic door holder with a low-profile armature and field-ready finish coordination for commercial door frames. It’s part of the SEM 7800 Series approach that provides electrically controlled hold-open behavior and safe release when power is interrupted.
You can source LCN commercial magnetic door holders through QualityDoor.com with same-day shipping and product expertise.