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.

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  • 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
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