LCN SEM7840 689 Recessed Wall Mount Magnet, Low Profile, Powder Coat, 2-5/8" Pocket Depth Mounting, Aluminum Finish
The LCN SEM7840.689 Recessed Wall Mount Magnet is a low-profile, fail-safe electromagnetic door holder engineered for commercial fire and smoke barrier applications requiring a 2-5/8" pocket depth. Delivering 35 lbs. of holding force, this tri-voltage unit operates on 12VDC, 24VAC/DC, or 120VAC, making it ideal for integration with fire alarm and life-safety systems in hospitals, schools, and government facilities. UL listed for labeled fire doors and smoke barrier doors, the SEM7840 releases automatically upon power loss to maintain code compliance and safe egress. Finished in durable 689/US28 aluminum powder coat and built to Grade 1 standards, this recessed wall-mounted LCN door magnet provides dependable performance, clean architectural aesthetics, and flexible installation for high-traffic commercial environments.
Features
- Tri-voltage design with 35lbs. of holding force
- Low profile recessed wall-mounted
- Now available armature extensions from LCN
- SEM 7840 magnets are shipped with die cast housing, cover, armature and WMS screw pack
- Suitable for use in pocket door installations
- UL listed for smoke barrier or labeled fire doors
Depth of Pocket at Magnet Mounting Location
| SEM 7830 |
4-1/8" |
| SEM 7840 |
2-5/8" |
| SEM 7850 |
3-5/8" |
