The SDC 1091AIVD spacesaver mortise bolt is designed for safety applications, the door unlocks automatically when power is interrupted by the access control, power failure or a signal from the fire life safety system. 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.

Features:

• Aluminum finish
• Faceplate: 8"L x 1-1/2"W x 1/8"D - standard
• Strike: 4"L x 1.5"W x 1-9/16"D
• Door position sensor, SPDT is included
• Bolt Material: Nylon with center magnet
• Fits 1-3/4" minimum face frames
• Bolt Diameter: 5/8"
• Adjustable auto relock switch
• Dual Voltage Coil: 0.45 Amp @ 24VDC continuous duty, 0.9 Amp @ 12VDC continuous duty
• Mounting Tabs: Two aluminum mounting tabs are provided for easy lock installation