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The LCN SEM7850.689 Recessed Wall Mount Magnet is a commercial-grade, fail-safe electromagnetic door holder designed for pocket and recessed wall installations requiring a 3-5/8" mounting depth. Delivering 35 lbs. of holding force in a standard profile design, this tri-voltage unit operates on 12VDC, 24VAC/DC, or 120VAC for seamless integration with fire alarm and life-safety systems. UL listed for smoke barrier and labeled fire doors, the SEM7850 ensures reliable automatic release upon power interruption for code-compliant operation in healthcare, education, and government facilities. Finished in 689/US28 aluminum powder coat and built to Grade 1 standards, this recessed LCN door magnet provides durable performance, clean architectural appearance, and flexible installation for high-traffic commercial environments.
Features
Depth of Pocket at Magnet Mounting Location
| SEM 7830 | 4-1/8" |
| SEM 7840 | 2-5/8" |
| SEM 7850 | 3-5/8" |
| Manufacture | LCN |
| SKU | SEM7850.689 |
| BAA Qualified |
Yes |
| Grade | Grade 1 |
| Installation | Commercial |
| Limited Warranty | 2 Years |
| Unit of Measure | Each |
| Finish | 689/US28 |
| Finish Description | Aluminum Powder Coat |
| AMP Draw | .020A at 24VACDC/120VAC, .030A at 12VDC |
| Armature Size |
2-5/8" Projection |
| Function |
Fail Safe |
| Operating Voltage | 12VDC / 24VAC/DC / 120VAC |
| Holding Force | 35 lb |
| Product Type | Electromagnetic Door Holders |

