SDC 1091AIC FailSafe Spacesaver Mortise Bolt Lock, Bright Brass

Optimize perimeter security and life-safety compliance with the Security Door Controls SDC 1091AIC FailSafe Spacesaver mortise bolt lock. Designed for facilities that require reliable fail-safe operation, this deadbolt automatically unlocks on power loss or fire-life safety signals to ensure unobstructed egress and meet regulatory expectations. The 1091AIC combines a compact spacesaver design that fits 1-3/4" minimum face frames with a corrosion-resistant bright brass finish for a professional appearance on exterior and interior doors.

Engineered for access control integration and building security, the lock features a nylon bolt with a center magnet and repelling magnets that eject the bolt if the spring ever fails—providing redundant assurance against accidental lockdowns. The dual-voltage continuous-duty coil (0.45A @ 24VDC, 0.9A @ 12VDC) simplifies retrofits and reduces inventory needs for integrators. As the only electric bolt lock listed by the California State Fire Marshal for after-hours perimeter locking, it’s an ideal choice for commercial, institutional, and healthcare applications that combine security, surveillance and emergency monitoring.

Specify the SDC 1091AIC to improve safety and simplify installation—contact sales to request a quote or installation guidance.

• Ensures safe egress on power loss: fail-safe design automatically unlocks the door during power interruption or fire-life safety signals
• Certified reliability for perimeter and emergency exits: California State Fire Marshal listed for after-hours locking of exterior doors
• Redundant unlocking mechanism: nylon bolt with center magnet plus repelling magnets guarantee unlock even if the spring fails
• Retrofit-friendly dual-voltage coil (24VDC/12VDC) and compact spacesaver profile fit 1-3/4" minimum face frames for easy installation
• Durable bright brass finish and adjustable auto-relock switch provide long-term aesthetics and operational flexibility for facilities and access control systems