SDC’s 490 series emergency release stations provide immediate unlocking of perimeter doors or interior doors that are equipped with fail-safe electric locks. The 490’s built in alarm may be used as a local door annunciator.
Specifically designed for emergency door release, 490 series emergency release stations may influence the approval of an electric locking system.
The 491 model may be preferred over a pull station since greater commitment is required to break the glass.
x See Datasheet For More Info- UL 38 Manual Signaling Boxes for Fire Alarm Systems
- CFSM Listed 150-0512:0006
| 491 | Emergency Break Glass Station |
| 492 | Emergency Pull Station |
| 491-BB | Blue Surface Mount Back Box, 5-1/4” x 3-1/4” x 1-1/2” |
| 492-BB | Blue Surface Mount Back Box, 4-3/4” x 3-1/8” x 1-5/8” |
| 491-GL4 | Replacement Glass Plates, Quantity 4 |
| 492-GL4 | Replacement Glass Plates, Quantity 4 |