The 998M689 is a wall-mounted electromagnetic door holder designed for commercial fire doors that need positive control during normal operation. This Grade 1 unit mounts flush to the wall with concealed wiring and holds fire doors open until released by the fire alarm system or manual switch. The Rixson 998M series solves the problem of heavy fire doors that swing shut constantly in high-traffic areas like hospitals and schools.
The unit projects 3-5/8" from the wall and requires a 2" x 4" x 1-3/4" outlet box with proper wall reinforcement. Concealed wiring keeps the installation clean while the aluminum finish matches most commercial door hardware. Fire alarm integration ensures automatic release during emergencies to restore the fire door's barrier function.
| Product Family | 998M Series |
|---|---|
| Grade | Grade 1 |
| Finish | Aluminum |
| Projection | 3-5/8" |
| Wiring | Concealed |
| Warranty | 2-year limited |
This electromagnetic holder meets ANSI/BHMA A156.15 Grade 1 standards and carries UL-cUL listing for fire safety applications. Fire door assemblies using magnetic holders must maintain UL 10C fire ratings and follow NFPA 80 annual inspection protocols.
Proper egress planning requires understanding how magnetic holders integrate with IBC Chapter 10 means of egress requirements to ensure doors close automatically when the fire alarm activates.