Motorized electric latch retraction (MLR) mortise locksets replace existing mechanical or electrified mortise locksets for the access control of openings in commercial, industrial and institutional facilities where code compliance, dependable operation and resistance to physical abuse are required. These code compliant electric mortise locksets stay latched even when unlocked, maintaining fire door integrity.

SDC’s 7700 series motorized latch retraction and solenoid controlled mortise locksets incorporate a grade 1 heavy duty mortise lockset and vandal resistant clutch – proprietary to all SDC locksets. The motorized latch retraction feature is designed for use on fire rated doors to provide access control and building and fire life safety compliance. Door stays latched even when de-energized. Ideal for automatic door operator applications. The solenoid controls the inside, outside or both door levers. The MLR and solenoid control features combine versatile passage functionality with failsafe or failsecure access control while meeting ADA Compliance All SDC mortise locks feature a mortise cylinder to manually retract the latch.*

* Key cylinders sold separately, see related products