LCN SEM7830 Sentronic SEM 7800 Series Electromagnetic Surface Wall-Mounted Door Holder Magnet

Deliver dependable, fail-safe door retention that supports both security and life-safety systems. The LCN SEM7830 Sentronic SEM 7800 Series electromagnetic surface wall-mounted door holder magnet is an electrically controlled, heavy-duty solution that holds doors securely until current is interrupted. Designed for commercial and institutional environments, the SEM7830 provides consistent performance with a surface wall-mounted form factor that simplifies retrofit and new-construction installs.

Because the unit is fail-safe, it integrates directly with fire alarm and access control systems to release on power loss, enhancing building safety and compliance. The SEM7830 works with a manual door closer to ensure controlled closing and reduce wear on hardware — ideal for high-traffic areas in hospitals, schools, offices and retail spaces. Its electrically controlled operation also supports monitoring and surveillance strategies by tying into centralized security systems for status reporting and alarm response.

Specify the LCN SEM7830 when you need a robust, serviceable magnetic door holder that balances security, safety and operational efficiency. Contact your supplier to discuss application suitability or to place an order.

• Fail-safe door retention that releases only when power is cut, protecting life-safety and fire alarm integration
• Heavy-duty electromagnetic hold for reliable, long-term security and reduced door damage
• Surface wall-mounted design (SEM7830) for fast retrofit and minimal installation downtime
• Electrically controlled operation enables seamless integration with access control, monitoring and alarm systems
• Compatible with manual door closers to ensure controlled, consistent closing and improved traffic flow