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Corbin Russwin ML20901-LL-12AD ECL Fail Safe Electrically Controlled Mortise Lever Lockcase (12VAC/DC)

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Combine simplicity and access control with the Corbin Russwin ML20901 ECL series electrically controlled mortise lock. Utilizing the proven ML2000 Series mortise lockset with the patented quick reversible latchbolt, the ML20900 series provides solenoid-operated remote locking and unlocking. The self-contained integral continuous-duty solenoid allows installation in standard mortise prep with slight modification by door manufacturer. The ML20901 ECL is ideal for use where increased security is necessary at all times, such as tenant space, pharmacies, computer rooms, and high security areas.

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Product Description


• Available in 12 volt AC/DC
• Fail Safe
• Minimal power requirements – lock is designed to lock or unlock as the situation demands
• Mechanical key override (Cylinder Not Included)
• For lever trims
• Patented Quick Reversible latchbolt, Patent # 6,349,982

Includes lock case, armored front, strike and screw pack

Additional Information

Additional Information

Manufacturer Corbin Russwin ASSA ABLOY
Model ML20901-LL-12AD
Lock Functions ML20901: Latchbolt by grip either side, unless both grips are locked by energizing solenoid. Latchbolt by key outside when solenoid is energized. Auxiliary latch deadlocks latchbolt.
Door Thickness 1-3/4" (44mm) standard.
Backset 2-3/4" (70mm).
Case Heavy-gauge chrome plated steel, 5-7/8" (149mm) x 4" (102mm) x 15/16" (24mm).
Handing Non-Handed
Keying/Keyways Less Cylinder
Latchbolt 2-piece mechanical anti-friction insert, 5/8" (16mm) x l" (25mm) x 3/4" (19mm) throw.
Faceplates/Armor Fronts Wrought brass, bronze or stainless steel attached by machine screws to lockcase front.
Exposed Trim Lever x Lever
Strikes Wrought brass, bronze or stainless steel ANSI straight lip standard, 4-7/8" (124mm) x 1-1/4" (32mm) x 1-1/8'' (29mm) lip to center.
Mode of Operation Fail Safe
Electrical Specifications 12VAC/VDC @ 800mA
Continuous duty solenoid.
Certifications Meets FF-H-106C.
U.L. Listed All locks listed for A label and lesser class doors, 4' x 10' single or 8' x 10' pair. Letter F and UL symbol on armored front indicate listing. Meets requirements of UL1034.
Warranty 1 Year Warranty
Weight 3.5000


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