SDC Spacesaver FS23MIV Bolt Lock, Concealed Mortise, Dual Fail Safe, Satin Aluminum

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Was: $420.00
Now: $327.60

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Product Overview

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. Adjustable auto relock switch. Fits 1-3/4" minimum face frames.

Warranty Information

5 Years Limited


  • Action
    Door unlocks automatically when power is interrupted by the access control, power failure or signal from a fire life safety system
  • Bolt
    5/8"Diameter, Nylon Material with Hardened Magnet Core
  • Bolt Throw Length
    5/8" (16mm)
  • Country of Origin
  • Electrical Rating
    0.9 A @ 12 VDC, 0.45 A @ 24 VDC Continuous Duty
  • Faceplate Depth
  • Faceplate Height
  • Faceplate Width
  • Failure Mode
    Dual Fail Safe
  • Frame Application
  • Hardware Finish
    Satin Aluminum, Clear Anodized 628/US28
  • Includes
    Auto Relock Switch
  • Mounting Location
    Frame Header, Side Jamb or Door Lock Stile
  • Operating Voltage
  • Power
  • Standards
    UL Listed, US and Canada, UL10C Positive Pressure Compliant
  • Strike Size
    4"L x 1-1/2"W x 1-9/16"D
  • Unit of Measure
  • Use With
    1-3/4" minimum face frame

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