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FS23M Series Dual Failsafe Electric Bolt Lock
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The FS23M dual failsafe feature is available only from SDC. Conventional failsafe locking bolts rely solely on a spring to retract the bolt while the FS23M bolt will unlock with or without the assistance of the spring. This is the only electric bolt lock listed by the California State Fire Marshal for locking of perimeter entrance and emergency exit doors after-hours.

Large repelling magnets are located within the bolt and strike. When power is interrupted the bolt is retracted and held back by a spring. Should the spring fail, repelling magnets eject the bolt from the strike, unlocking the door.

Options: 24VAC; Door Status Sensor; Bolt Status Sensor.
SDC Spacesaver® Electric Bolt Lock, Extra Narrow Mortise, Failsafe for 1-1/2" Frame
SDC Spacesaver® Electric Bolt Lock, Extra Narrow, Failsecure for 1-1/2" Frame
Series Features
  • Adjustable Auto Relock Switch
  • Fits 1 ½” minimum face frames
  • Failsafe – Dual 12/24VDC standard
  • Failsecure – Choice of 12 or 24VDC
  • Aluminum Finish Standard
  • Choice of 9 anodized & plated finishes
  • UL Listed, US & Canada
  • UL 10C Positive Pressure Compliant
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