ACSI M1520M-1-ML2055 Corbin Ru...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,206.70
$838.85
ACSI ACSI M1520M-1-ML2055 Corbin Russwin 2000 Series Office, Entry Mortise Lever Lock Fail Secure Motor Controlled ACSI-M1520M-1-ML2055

ACSI M1520M-1-ML2055 Corbin Russwin 2000 Series Office, Entry Mortise Lever Lock Fail Secure Motor Controlled

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Model: ACSI-M1520M-1-ML2055-ASA-605-LC
From the 1500 Series Collection
$1,206.70
$838.85
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$1,206.70
$838.85
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ACSI M1520M-1-ML2055 CORBIN RUSSWIN 2000 SERIES OFFICE, ENTRY MORTISE LEVER LOCK FAIL SECURE OVERVIEW

M1520M-1-ML2055 Corbin Russwin 2000 Series Office, Entry Mortise Lever Lock Fail Secure Motor Controlled. Corbin Russwin 2000 Series Classroom Mortise Lever Lock Modified with Fail Secure Operation (Power Unlock), Standard Control Locks Outside (Secure Side) Trim, Motor Controlled,, Less Cylinder.

ACSI Series 1500 Electric Mortise Locks provide safety and security for stairtower doors or controlled areas where both locking and latching are required. The locks are available in motor-controlled or solenoid-controlled to allow remote electric locking or unlocking while conforming to life-safety codes.

Buy the ACSI M1520M-1-ML2055 Corbin Russwin 2000 Series Office, Entry Mortise Lever Lock Fail Secure Motor Controlled for easy installation and dependable door hardware solution.

ACSI M1520M-1-ML2055 CORBIN RUSSWIN 2000 SERIES OFFICE, ENTRY MORTISE LEVER LOCK FAIL SECURE PRODUCT FEATURES

  • Function: 1520M-Fail Secure Control
  • Cylinder Type: Less Cylinder
  • Product Type: Electronic Mortise Lock
  • Electric Options: Latchbolt Monitor
  • Strike Type: Straight Lip
  • ADA Compliant: YES
  • Strike Size: 4-7/8" x 1-1/4"
  • Hub Size: 5/16 Inch
  • Lever Size: 4-1/2 Inch
  • Hub Material: Steel
  • Standards: UL Listed; California State Fire Marshall Approved; ANSI/BHMA A156.13 Series 1000; Operational and Security Grade 1; A117.1 Accessibility Code
  • Front Material: Heavy Gauge Steel
  • Case Dimensions: 5-7/8" x 4" x 15/16"
  • Function Description: Outside Trim is Unlocked When Power is Applied and Locked When Power is Removed. Lockset will Lock in the Event of a Power Failure
  • Front Size: 8" x 1-1/4" x 3/32"
  • Function Family: Fail Secure
  • Strike Lip: 1-1/8 Inch
  • Product Projection: 2-5/8 Inch
  • Spacing: 3-5/8" (Knob/Lever to Cylinder); 2-7/16" (Knob/Lever to Thumbturn)
  • Rose/Escutcheon Width: 2-1/4 Inch
  • Rose/Escutcheon Length: 2-1/4 Inch
  • Electrified Features: 12/24V at 250mA Inrush; 10mA Holding
  • Features: Simple User Selectable Fail Safe/Fail Secure Operation in Motor Controlled Locks; Continuous Duty Rated; Low Power Consumption; Interface With Life Safety Systems
  • Voltage: 12 to 24VAC/VDC
  • Grade: ANSI/BHMA Grade 1
  • Application: Offices; Schools; Hospitals; Hotels
  • Backset: 2-3/4 Inch
  • Handing: Reversible
  • Warranty: 10 Year
  • Door Thickness: 1-3/4 inch
  • Latch Throw: 3/4 Inch
  • Manufacturer Parent: ACSI
  • Latchbolt Size: 5/8" x 1"
  • Auxiliary Latch Throw: 9/16 Inch
  • Latchbolt Type: 2-Piece Mechanical With Anti-Friction Insert

ACSI-M1520M-1-ML2055 ELECTRIFIED MORTISE LOCKS AVAILABLE CONFIGURATION

ACSI M1520M-1-ML2055 Corbin Russwin 2000 Series Office, Entry Mortise Lever Lock Fail Secure Motor Controlled
ACSI M1520M-1-ML2055-ASA-605-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure AS Lever Design, A Rose Design
ACSI M1520M-1-ML2055-ASA-612-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure AS Lever Design, A Rose Design
ACSI M1520M-1-ML2055-ASA-613-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure AS Lever Design, A Rose Design
ACSI M1520M-1-ML2055-ASA-625-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure AS Lever Design, A Rose Design
ACSI M1520M-1-ML2055-ASA-626-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure AS Lever Design, A Rose Design
ACSI M1520M-1-ML2055-ASA-630-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure AS Lever Design, A Rose Design
ACSI M1520M-1-ML2055-ASM-605-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure AS Lever Design, M Rose Design
ACSI M1520M-1-ML2055-ASM-612-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure AS Lever Design, M Rose Design
ACSI M1520M-1-ML2055-ASM-613-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure AS Lever Design, M Rose Design
ACSI M1520M-1-ML2055-ASM-625-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure AS Lever Design, M Rose Design
ACSI M1520M-1-ML2055-ASM-626-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure AS Lever Design, M Rose Design
ACSI M1520M-1-ML2055-ASM-630-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure AS Lever Design, M Rose Design
ACSI M1520M-1-ML2055-CSA-605-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure CS Lever Design, A Rose Design
ACSI M1520M-1-ML2055-CSA-612-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure CS Lever Design, A Rose Design
ACSI M1520M-1-ML2055-CSA-613-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure CS Lever Design, A Rose Design
ACSI M1520M-1-ML2055-CSA-625-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure CS Lever Design, A Rose Design
ACSI M1520M-1-ML2055-CSA-626-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure CS Lever Design, A Rose Design
ACSI M1520M-1-ML2055-CSA-630-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure CS Lever Design, A Rose Design
ACSI M1520M-1-ML2055-CSM-605-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure CS Lever Design, M Rose Design
ACSI M1520M-1-ML2055-CSM-612-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure CS Lever Design, M Rose Design
ACSI M1520M-1-ML2055-CSM-613-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure CS Lever Design, M Rose Design
ACSI M1520M-1-ML2055-CSM-625-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure CS Lever Design, M Rose Design
ACSI M1520M-1-ML2055-CSM-626-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure CS Lever Design, M Rose Design
ACSI M1520M-1-ML2055-CSM-630-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure CS Lever Design, M Rose Design

Product Specs

Series:
1500 Series
Collection:
1500 Series
Product Type:
Electronic Mortise Locks
Features:
Simple User Selectable Fail Safe/Fail Secure Operation in Motor Controlled Locks, Continuous Duty Rated, Low Power Consumption, Interface With Life Safety Systems
Warranty:
10 Year
Subcategory:
Electrified Mortise Locks
Commercial/Residential:
Commercial
Electronic:
Yes
Lock Type:
Mortise
Handle Type:
Lever
Fail-safe / Fail-secure:
Field Selectable
Product Group:
Mechanical Locks
Product Subgroup:
Mortise Locks and Trim
Product Voltage:
12VAC/DC/24VDC/24VAC
Door Hand Direction:
Field Reversible
Electrical Configuration:
Latchbolt Monitor
Product Category:
Mechanical Locks
Department:
Door Hardware

ACSI ACSI-M1520M-1-ML2055-ASA-605-LC – Frequently Asked Questions

1) Will the ACSI M1520M-1-ML2055 electrified mortise lock fit a 1-3/4 inch door with a 2-3/4 inch backset?
That is exactly what it's built for. The M1520M-1-ML2055 mortise lock is a 2-3/4 inch backset lock for 1-3/4 inch thick doors, the standard commercial thickness. The case measures 5-7/8 x 4 x 15/16 inches and the front is 8 x 1-1/4 x 3/32 inches, so the door pocket has to be prepped to a standard Corbin Russwin 2000 Series mortise cavity. Projection off the door face is 2-5/8 inches.
2) What happens to the ACSI 1520M mortise lock when the power goes out?
It locks. Fail secure means the outside trim is unlocked only while power is applied and locks the moment power is removed, so a power failure leaves the outside lever locked. The inside lever always retracts the latch for free egress. Because this is the motor-controlled version, fail safe and fail secure are user selectable in the field, so the same lock can be flipped to unlock on power loss if the opening calls for it.
3) What voltage and current does the ACSI 1500 Series motor-controlled mortise lock draw?
It runs on 12 to 24V, AC or DC, drawing 250mA inrush and only 10mA holding. That low holding current means several openings can share a modest power supply, and the lock is continuous duty rated so it can sit energized indefinitely. Size the supply for the inrush of every lock that could be switched at once.
4) Does the ACSI M1520M-1-ML2055 mortise lock come with a cylinder?
No. It ships less cylinder (LC), so you supply the mortise cylinder and keying separately and key it into whatever system the building already runs. Every configuration on the M1520M-1-ML2055 is less cylinder. Spacing from the lever to the cylinder is 3-5/8 inches, and lever to thumbturn is 2-7/16 inches.
5) Is this ACSI electrified mortise lock handed, or can I use one lock on any door?
Handing isn't a problem. The 1520M mortise lock is field reversible, so one part number covers left and right hand openings and you can stock a single lock for a building with doors swinging both ways.
6) Will the ACSI 1520M latch into my existing Corbin Russwin mortise strike?
Most likely yes if the frame is prepped for a standard Corbin Russwin 2000 Series mortise strike. The lock ships with a straight lip strike measuring 4-7/8 x 1-1/4 inches with a 1-1/8 inch lip. Latchbolt throw is 3/4 inch with a 5/8 x 1 inch two-piece mechanical latchbolt with anti-friction insert, and the auxiliary deadlatch throws 9/16 inch. Check your existing strike lip length against 1-1/8 inches, since a deeper frame reveal needs a longer lip.
7) Does this ACSI mortise lock meet Grade 1 and ADA requirements for a school or hospital corridor?
It does. The 1520M electrified mortise lock is UL Listed, California State Fire Marshal approved, and certified to ANSI/BHMA A156.13 Series 1000 at Operational and Security Grade 1. It is ADA compliant and meets the A117.1 accessibility code, with a 4-1/2 inch lever that operates without tight grasping or twisting. Typical applications are offices, schools, hospitals and hotels, plus stairtower doors where both locking and latching are required.
8) Can I monitor whether the door is latched with the ACSI 1520M mortise lock?
Yes, the lock is supplied with a latchbolt monitor. That switch reports latchbolt position back to the access control panel or life safety system, so you know the door actually latched rather than just closed. The 1500 Series is intended to interface with life safety systems, which is what lets a stairtower or controlled opening be released remotely while staying code compliant.
9) What lever, rose and finish combinations do I need to specify when ordering the ACSI M1520M-1-ML2055?
Three choices decide the part number. Lever design is AS or CS, rose design is A or M, and finish is 605 bright brass, 612 satin bronze, 613 oil rubbed bronze, 625 bright chrome, 626 satin chrome, or 630 satin stainless. That's 24 combinations, all less cylinder and all with the standard 1 locking option, which controls the outside (secure side) trim. Rose or escutcheon is 2-1/4 inches by 2-1/4 inches, so trim footprint is the same whichever design you pick.
10) What is the hub size and material on the ACSI 1520M mortise lock?
The hub is steel with a 5/16 inch spindle size, and the front is heavy gauge steel. That matters if you're reusing or sourcing trim: levers have to match a 5/16 inch hub, and Corbin Russwin 2000 Series trim with AS or CS lever designs is what this lock is built around.
How fast can I get the ACSI ACSI-M1520M-1-ML2055-ASA-605-LC delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the ACSI ACSI-M1520M-1-ML2055-ASA-605-LC come with a warranty?
Absolutely. The ACSI ACSI-M1520M-1-ML2055-ASA-605-LC is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the ACSI ACSI-M1520M-1-ML2055-ASA-605-LC?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the ACSI ACSI-M1520M-1-ML2055-ASA-605-LC from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
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