The updated Schlage L Series motorized latch retraction locks adapt to a range of entry points, including data centers, infection control and clean room installations, and classroom doors.
CARMEL, Ind.—Allegion US, known for mechanical and electronic security hardware, has launched a new model in its Schlage L Series: Motorized Latch Retraction mortise locks.
After its March 2025 market debut, Schlage says the Grade 1 L Series models with built-in motorized latch retraction tackle access needs from physical security to electronic control and touch-free entry. According to the brand, this approach replaces electric strikes, delivering stronger protection and a more refined appearance. The company notes that low-noise operation makes these locks ideal for medical wings, research labs or any setting where repeat openings could generate unwanted disturbance. Schlage points out that fitting the motor inside the mortise case simplifies installation, removing extra hardware and cutting wiring runs.
“With the introduction of motorized latch retraction to our trusted L Series, we’re providing a solution that not only enhances security and improves accessibility, it also delivers quiet, seamless operation for demanding environments like healthcare and education,” says Jim Bembenek, senior project manager at Allegion US. “This innovation reflects our commitment to creating smarter, more efficient access solutions that meet the evolving needs of our customers.”
Schlage highlights quiet performance as a signature feature. Six functions span keyed, non-keyed and lever control configurations. Each model uses a 24 V DC stepper motor to deliver high torque at a slow speed. Three functions retract the latch for momentary or continuous activation. The remaining three employ a separate motor to manage locking and unlocking of the lever. Almost every version offers both request-to-exit (RX) and latchbolt (LX) feedback outputs. A patent-pending sensor detects binding or side load on the motor and adjusts torque to overcome static pressure or a slightly warped door.
As part of the L Series mortise family, these motorized latch retraction functions drop into the existing mortise pocket and receive power through the door, preserving the frame. Installers can reuse standard cutouts and route wiring alongside an automatic door operator, enabling contactless entry for accessible restrooms. Electric wiring feeds through a single in-door channel alongside the automatic operator.
Hands-free operation proves useful in infection control areas and clean rooms, in spaces requiring cart access, on delivery doors and in high-security data centers where robotic access may be needed. Dealers can apply these locks to any opening that demands restricted or timed entry. In K-12 schools, facility teams can program controlled entry for visitor lobbies, administrative suites and classroom doors. Time-based settings and credential checks support facilities needing scheduled access or rapid lockdown.
