The Simplex 4905-9903 is an adapter plate, part number 0740640. It adapts older Simplex notification footprints to current 4905-series devices. As a result, new horns and strobes mount without cutting new holes.
Mounting patterns often change between appliance generations. Therefore, an older backbox may not match a new device. The 4905-9903 bridges that gap. In addition, it lets installers reuse the existing electrical backbox.
Simplex 4905-9903 Features
- Adapter plate for Simplex 4905-series notification appliances
- Bridges mismatched mounting footprints during upgrades
- Reuses existing backboxes — no new holes required
- Genuine Simplex part number 0740640
Order or Get Application Help
First, confirm your device and backbox before ordering. Then call Life Safety Consultants at 1-888-557-0558. Alternatively, email sales@lifesafetycom.com.
For more information, contact the Life Safety Consultants team at (888) 557-0558, or email us at: sales@lifesafetycom.com
Additional information
| Weight | .1 lbs |
|---|---|
| Dimensions | 5.75 × 8.3125 × .2 in |
| Condition | New |
| Manufacturers | Simplex |
| Type | Adapter plate |
| Application | Retrofit/replacement |
| Compatible | Simplex A/V notification appliances |
