About this item
The Schlage ACL9080EUE is the electrified mortise lock case only from the Schlage L Series-the L9080 storeroom function with customer-selectable EL (fail safe) and EU (fail secure) modes, motor-driven operation, and 12V/24V auto-detect voltage. If you searched "el mortise", "el.mortise", "el mortuse", "el mortise place", or "elmortise"-this is the product. EL is the Schlage designation for electrified latch fail safe mode. The ACL9080EUEL model number combines the ACSI series prefix, the L9080 function, and the EL/EU selectable configuration designation.
"EL Mortise": What EL Means and Why Everyone Searches It That Way
No competitor page explains the EL designation. It is Schlage-specific terminology that creates exactly this search behavior-specifiers and integrators familiar with Schlage products search "EL mortise" as a shorthand for the electrified fail safe mortise lock function.
EL (Electrically Locked / Fail Safe): Power energizes the motor to lock the outside lever. Power off unlocks the outside lever. The "safe" state on power failure is unlocked-door opens freely without power. Code-required on egress paths, fire stair doors, and any opening where power failure must not trap occupants.
EU (Electrically Unlocked / Fail Secure): Power energizes the motor to unlock the outside lever. Power off locks the outside lever. The "secure" state on power failure is locked-door stays secured without power. Correct for server rooms, pharmaceutical storage, and high-security spaces where unauthorized access during a power failure is the greater risk.
The ACL9080EUE is the customer-selectable version-both EL and EU modes are available via a switch on the case. The same lock body supports both fail modes. You select the correct mode during installation without ordering a different part number. This is the defining advantage of the Schlage L Series electrified platform over solenoid-based locks that require separate fail safe and fail secure models.
ACL9080EUE Model Decoded
ACL-ACSI series designation for this electrified L Series variant as distributed through the ACSI commercial hardware channel.
9080-L Series function 9080, the storeroom function. Latchbolt retracted by key from outside or by lever from inside. Outside lever is always inoperative without key-it does not retract the latch under any mechanical circumstance without the key. Inside lever is always free for immediate egress regardless of electrical state, key state, or power condition.
EU-Fail secure designation (EU = Electrically Unlocked base mode, meaning power unlocks). Combined with EL selectability on this model.
E-Electrified.
L-L Series platform.
Motor Driven vs Solenoid: The Critical Technical Distinction
The Schlage L Series electrified mortise lock uses a motor to control lever operation-not a solenoid. This is the most important product architecture detail absent from every competitor page, and it changes how you integrate this lock.
A solenoid-based electrified lock uses a coil that snaps a plunger in or out when energized. Solenoids draw high peak current on activation, generate heat during holding, and are limited in cycle life by the mechanical snap. The current draw at 12V for a solenoid-based lock is typically 685mA or more.
The Schlage L Series motor mechanism drives the lever control quietly, with low current draw, high cycle life, and no mechanical snap. The motor is quiet enough that you cannot hear the lock operate from the other side of a door-which matters in healthcare, hospitality, and any environment where audible lock operation is unacceptable. Energy efficiency is also significantly better than solenoid: lower holding current means lower operating cost across large multi-door installations.
12V/24V Auto-Detect: No Voltage Specification Required at Order
The ACL9080EUE auto-detects 12VDC and 24VDC power supply voltage. The same lock body works with either voltage without modification, rewiring, or DIP switch adjustment for voltage selection. Plug into the access control panel power supply at whatever voltage that panel provides-the lock senses it automatically.
This eliminates voltage mismatch errors that damage solenoid locks and simplifies power supply specification across mixed-voltage access control systems.
Case Only: What Ships and What You Order Separately
The ACL9080EUE is case only-the electrified lock body ships without lever trim, without rose, without cylinder, and without cover plate. This is the standard ordering method for electrified L Series mortise locks in commercial construction where the hardware schedule specifies lever style, finish, and cylinder separately from the lock case.
Order the case, then specify: lever style (over 35 options in the L Series), rose or escutcheon format (A rose 2-1/8", B rose 2-9/16"), cylinder (conventional 6-pin, SFIC, LFIC, Primus high security), and finish separately. The universal L Series case supports 10 different functions-if you need to change function in the field, the case accommodates it.
Monitoring Options: RX, DPS, Latchbolt Monitor, Deadbolt Monitor
The ACL9080EUE supports multiple monitoring and control output options:
RX (Request to Exit)-Detects when the inside lever is activated, sending a signal to the access control panel to log the exit event or shunt a door position alarm during legitimate egress.
DPS (Door Position Switch)-Monitors whether the door is physically open or closed, independent of the lock state. Used for door propped alarm and door forced alarm functions at the access control panel.
Latchbolt monitor-Reports whether the latchbolt is extended (door latched) or retracted (lever active).
Deadbolt monitor-Reports deadbolt position to the access control panel.
These monitoring outputs all feed back to the access control panel for event logging, alarm management, and real-time door status dashboards-critical for enterprise access control systems where door state visibility is required.
L Series Integration: Von Duprin Exit Devices and Suite Compatibility
The ACL9080EUE leverages the L Series' complete suite compatibility. All L Series levers also suite with Von Duprin exit devices, allowing a consistent lever design across both the mortise lock on the office side and the Von Duprin device on the egress path-matching hardware throughout the opening. This is the access control hardware integration approach that institutional architects and security consultants specify by name: Schlage L Series electrified mortise with Von Duprin exit hardware.
Vandlgard option is available-the Vandlgard free-wheeling outside lever rotates without operating the lock when the outside lever is locked, preventing lever attack and torque-based tampering.
Specifications
Model: Schlage ACL9080EUE / L9080EU/EL
Series: Schlage L Series Electrified Mortise
Function: L9080 storeroom-outside lever always key-controlled, inside lever always free
Fail Mode: Customer selectable EL (fail safe) or EU (fail secure) via case-mounted switch
Actuation: Motor driven-quiet, low current, high cycle life
Voltage: 12VDC or 24VDC-auto-detect, no specification required
Ships As: Case only-lever trim, rose, cylinder, cover plate ordered separately
Monitoring Options: RX, DPS, latchbolt monitor, deadbolt monitor
Handing: Field reversible
ANSI/BHMA: A156.13 Series 1000 Grade 1 Operational and Security
UL: UL19X electrified single-point locking; UL listed 3-hour fire door
ADA: Compliant
BAA: Meets Buy American Act requirements
Suite Compatibility: Von Duprin exit devices, LT tubular, LM9200/LM9300 multipoint
American Locksets has stocked Schlage L Series electrified mortise locks since 2001.
Trusted Since 2001
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