The Command Access Technologies ML19092-M motorized electrified mortise lock chassis is designed for commercial door access-control upgrades using compatible Schlage L9000 Series mortise lock preparations and trim. The ML19092 storeroom-function chassis combines a heavy-duty Grade 1 platform with quiet motorized control of the outside lever and field-selectable EL (fail-safe) or EU (fail-secure) operation. This catalog configuration is identified as 24V, while the ML190 motorized platform accepts compatible 12V or 24V DC power under the manufacturer's published universal-input specifications.

Catalog Review – Product-Specific Notes

Motorized Chassis Configuration and Function

The ML19092-M-EL/EU CH 24V is a motorized mortise lock chassis for compatible Schlage L9000 retrofit applications. It differs from a complete mortise lockset and from a conventional solenoid latch-pullback retrofit.

• Selectable locking function: The installer must set the supported electrically locked/electrically unlocked mode to match the specified fail-safe or fail-secure behavior. Confirm setting and resulting power-loss condition before the opening is accepted.
• Power and control: Verify 24VDC electrical ratings, motor actuation current, low-current holding behavior, wiring and access-control outputs for the exact part revision.
• Compatibility: Match lockcase preparation, hand, latch and strike, trim, keying and egress operation. Lever trim, cylinder and other exterior hardware are separate unless expressly included.

Key Features & Benefits

• Motorized mortise lock: Electronic control uses the ML190 motorized mechanism rather than the conventional solenoid-style arrangement found in some electrified mortise chassis.
• Field-selectable EL / EU: Change between EL fail-safe (power-to-lock) and EU fail-secure (power-to-unlock) functions using the manufacturer's field-selection procedure; no different chassis is required for the two supported modes.
• Storeroom function – ML19092: The outside lever is electronically controlled while the inside lever mechanically retracts the latch for immediate free egress when properly installed.
• Schlage L9000 retrofit: Designed to work with appropriately matched Schlage L9000-series mortise lock applications. Verify the existing door preparation, handing, trim and latch components before ordering.
• Grade 1 heavy-duty chassis: Engineered for intensive use at commercial, institutional, office and managed-access doors.
• 12V / 24V DC capable: Published ML190 motorized specifications support voltage input over an approximately 11–30VDC range. The supplied supplier part number specifies 24V; use a suitable regulated DC source and the current installation instructions.
• Low-power motorized design: Manufacturer literature cites 400mA maximum current draw and an approximately 10mA holding current, helpful for access-control power planning. Confirm exact electrical requirements for the final installation.
• Field handling: ML190 series supports field handing to suit the approved door schedule.
• Chassis-only configuration: Intended for use with compatible existing or separately sourced mortise trim and cylinder components; this is not a complete lockset with levers and trim.
• Optional monitoring components: REX and latchbolt-monitoring accessories may be available for the ML190 platform, but they are not specified as included in this base chassis-only SKU.

Product Specifications

Understanding EL vs. EU Operation

EL (fail-safe / power-to-lock): Supplying operating power secures the controlled outside lever, and removal of power permits outside lever operation. EU (fail-secure / power-to-unlock): The outside lever remains secured without power and releases upon the authorized electrical signal. The installer selects the appropriate mode on the ML190 and verifies behavior against the actual access-control system. In both designated storeroom modes, the interior lever provides mechanical egress.

Where This Chassis Is Used

Commercial office doors, institutional facilities, public buildings, secure administrative areas, stock and equipment rooms, retrofit door access-control projects, and other commercial openings already using or planned for compatible Schlage L9000 mortise hardware.

Installation & Ordering Checklist

1. Verify the design calls for the ML19092 motorized storeroom chassis and not a different ML19095 institutional or ML180 solenoid configuration.
2. Confirm compatibility with door thickness, mortise preparation, handing, spindle, existing Schlage L9000-series trim, cylinders, faceplate and strike.
3. Specify the intended EL or EU power-loss behavior and configure the chassis according to the manufacturer's field-selection instructions.
4. Provide a correctly rated 12V / 24V DC access-control power supply, control relay, wiring and approved electrical power transfer using factory installation guidance.
5. Do not assume that optional REX, latchbolt monitor or position-switch accessories are included without a separate listed option.
6. Confirm mechanical free egress, controlled exterior access, key operation, latch engagement and power-loss mode after installation.
7. For fire-rated doors and regulated egress applications, confirm the entire opening and access-control design complies with applicable codes and listings.

What Is Included / Not Included

Included: One Command Access ML19092-M-EL/EU CH 24V motorized, field-selectable Grade 1 mortise chassis-only unit. Confirm actual supplied mounting hardware, connector and accessories with current factory packing documentation.

Not assumed included: Exterior/interior lever trim, decorative escutcheons or roses, cylinder and keys, separate power supply, access controller, reader, door transfer hinge or loop, optional REX/LBM switch kit, door or frame.