The Simplex 4090-9813 is a 4-11/16″ box adapter plate for fire alarm installations. Essentially, it adapts compatible devices to a standard 4-11/16″ electrical box. As a result, installers get clean, secure mounting.
This plate solves common interface problems during retrofits and new work. Also, it aligns devices precisely with the back box. Therefore, the finished installation looks neat and stays stable.
Simplex 4090-9813 mounting plate
The adapter plate fits standard 4-11/16″ boxes found in commercial buildings. In addition, its durable construction holds up in demanding environments. The plate supports installations across offices, schools, and industrial sites.
- Type: Box adapter plate
- Fits: Standard 4-11/16″ electrical boxes
- Use: Fire alarm device mounting
- Brand: Simplex
Confirm your device and box compatibility before ordering. Then mount with confidence.
For more information, contact the Life Safety Consultants team at (888) 557-0558, or email us at: sales@lifesafetycom.com
Additional information
| Weight | 0.1 lbs |
|---|---|
| Dimensions | 6 × 4 × 0.03 in |
| Condition | New |
| Manufacturers | Simplex |
| Part Type | Heat Detector |







