SDC 491 Emergency Door Release Installation Guide
- June 6, 2024
- SDC
Table of Contents
SDC 491 Emergency Door Release
The SDC 491 “Break Glass” Emergency Door Release is ideal for immediate
unlocking of perimeter doors or interior work area doors that are equipped
with fail-safe electric locks. The SDC 491 is specifically designed for
emergency door release and may influence the approval of an electric locking
system.
This type of Emergency Door Release may be preferred over a pull station since
greater commitment is required to break the glass.
FEATURES
- An aluminum rod for striking the glass is included. (Not required to break the glass.)
- Blue painted finish with easy-to-read Activation Instructions avoids confusion with red Fire Alarm stations.
- Includes (2) SPDT 10 Amp Contacts – 1 SPDT for Lock Release and 1 SPDT Auxiliary contact for Remote Monitoring, CCTV Activation or Alarm Activation.
- The SDC 491 may initiate the release of an individual door or multiple doors connected to an Electric Locking System.
- The SDC 491 may be flush or recessed mounted in a 2” deep single gang box or double gang box with a plaster ring cover. It may be surface mounted with an optional back box # 491-BB.
- Two replacement glass plates are included. For additional replacements order # 491-GL.
Any suggestions or comments to this instruction or product are welcome. Please contact us through our website or email engineer@sdcsecurity.com
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