ACSI M1520M-1-ML2055-LC Corbin...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,018.60
$1,015.92
ACSI M1520M-1-ML2055-LC Corbin Russwin 2000 Series Office, Entry Mortise Lever Lock Fail Secure Motor Controlled Less Cylinder

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

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Model: ACSI-M1520M-1-ML2055-LWN-606-LC
From the 1500 Series Collection
$1,018.60
$1,015.92
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ACSI M1520M-1-ML2055-LC CORBIN RUSSWIN 2000 SERIES OFFICE, ENTRY MORTISE LEVER LOCK FAIL SECURE OVERVIEW

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

ACSI M1520M-1-ML2055-LC 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; Request to Exit (Optional)
  • Strike Type; ANSI Straight Lip
  • ADA Compliant: YES
  • Strike Size: 4-7/8" x 1-1/4"
  • Hub Size: 5/16 Inch
  • Lever Size; 5-1/8 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 Locked When Power is Applied and Unlocked When Power is Removed (Storeroom Function When Energized); Lockset will Unlock in the Event of a Power Failure (Passage Function)
  • Front Size: 8" x 1-1/4" x 3/32"
  • Strike Lip: 1-1/8 Inch
  • Product Projection: 2-1/2 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
  • Color Code; 605/US3
  • Door Thickness: 1-3/4 inch
  • Latch Throw; 3/4 Inch
  • Manufacturer Parent; ACSI
  • Monitor Switch Rating: 2A at 30VDC; 3A at 125VAC
  • 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-LC ELECTRIFIED MORTISE LOCKS AVAILABLE CONFIGURATION

ACSI M1520M-1-ML2055-LC Corbin Russwin 2000 Series Office, Entry Mortise Lever Lock Fail Secure Motor Controlled Less Cylinder
ACSI M1520M-1-ML2055-LWA-605-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure LW Lever Design, A Rose Design
ACSI M1520M-1-ML2055-LWA-606-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure LW Lever Design, A Rose Design
ACSI M1520M-1-ML2055-LWA-612-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure LW Lever Design, A Rose Design
ACSI M1520M-1-ML2055-LWA-613-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure LW Lever Design, A Rose Design
ACSI M1520M-1-ML2055-LWA-625-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure LW Lever Design, A Rose Design
ACSI M1520M-1-ML2055-LWA-626-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure LW Lever Design, A Rose Design
ACSI M1520M-1-ML2055-LWA-630-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure LW Lever Design, A Rose Design
ACSI M1520M-1-ML2055-LWM-605-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure LW Lever Design, M Rose Design
ACSI M1520M-1-ML2055-LWM-606-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure LW Lever Design, M Rose Design
ACSI M1520M-1-ML2055-LWM-612-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure LW Lever Design, M Rose Design
ACSI M1520M-1-ML2055-LWM-613-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure LW Lever Design, M Rose Design
ACSI M1520M-1-ML2055-LWM-625-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure LW Lever Design, M Rose Design
ACSI M1520M-1-ML2055-LWM-626-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure LW Lever Design, M Rose Design
ACSI M1520M-1-ML2055-LWM-630-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure LW Lever Design, M Rose Design
ACSI M1520M-1-ML2055-LWN-605-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure LW Lever Design, N Rose Design
ACSI M1520M-1-ML2055-LWN-606-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure LW Lever Design, N Rose Design
ACSI M1520M-1-ML2055-LWN-612-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure LW Lever Design, N Rose Design
ACSI M1520M-1-ML2055-LWN-613-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure LW Lever Design, N Rose Design
ACSI M1520M-1-ML2055-LWN-625-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure LW Lever Design, N Rose Design
ACSI M1520M-1-ML2055-LWN-626-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure LW Lever Design, N Rose Design
ACSI M1520M-1-ML2055-LWN-630-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure LW Lever Design, N Rose Design
ACSI M1520M-1-ML2055-NSA-605-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure NS Lever Design, A Rose Design
ACSI M1520M-1-ML2055-NSA-606-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure NS Lever Design, A Rose Design
ACSI M1520M-1-ML2055-NSA-612-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure NS Lever Design, A Rose Design
ACSI M1520M-1-ML2055-NSA-613-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure NS Lever Design, A Rose Design
ACSI M1520M-1-ML2055-NSA-625-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure NS Lever Design, A Rose Design
ACSI M1520M-1-ML2055-NSA-626-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure NS Lever Design, A Rose Design
ACSI M1520M-1-ML2055-NSA-630-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure NS Lever Design, A Rose Design
ACSI M1520M-1-ML2055-NSM-605-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure NS Lever Design, M Rose Design
ACSI M1520M-1-ML2055-NSM-606-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure NS Lever Design, M Rose Design
ACSI M1520M-1-ML2055-NSM-612-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure NS Lever Design, M Rose Design
ACSI M1520M-1-ML2055-NSM-613-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure NS Lever Design, M Rose Design
ACSI M1520M-1-ML2055-NSM-625-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure NS Lever Design, M Rose Design
ACSI M1520M-1-ML2055-NSM-626-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure NS Lever Design, M Rose Design
ACSI M1520M-1-ML2055-NSM-630-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure NS Lever Design, M Rose Design
ACSI M1520M-1-ML2055-PSA-605-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure PS Lever Design, A Rose Design
ACSI M1520M-1-ML2055-PSA-606-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure PS Lever Design, A Rose Design
ACSI M1520M-1-ML2055-PSA-612-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure PS Lever Design, A Rose Design
ACSI M1520M-1-ML2055-PSA-613-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure PS Lever Design, A Rose Design
ACSI M1520M-1-ML2055-PSA-625-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure PS Lever Design, A Rose Design
ACSI M1520M-1-ML2055-PSA-626-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure PS Lever Design, A Rose Design
ACSI M1520M-1-ML2055-PSA-630-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure PS Lever Design, A Rose Design
ACSI M1520M-1-ML2055-PSM-605-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure PS Lever Design, M Rose Design
ACSI M1520M-1-ML2055-PSM-606-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure PS Lever Design, M Rose Design
ACSI M1520M-1-ML2055-PSM-612-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure PS Lever Design, M Rose Design
ACSI M1520M-1-ML2055-PSM-613-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure PS Lever Design, M Rose Design
ACSI M1520M-1-ML2055-PSM-625-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure PS Lever Design, M Rose Design
ACSI M1520M-1-ML2055-PSM-626-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure PS Lever Design, M Rose Design
ACSI M1520M-1-ML2055-PSM-630-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure PS Lever Design, M Rose Design
ACSI M1520M-1-ML2055-RWA-605-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure RW Lever Design, A Rose Design
ACSI M1520M-1-ML2055-RWA-606-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure RW Lever Design, A Rose Design
ACSI M1520M-1-ML2055-RWA-612-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure RW Lever Design, A Rose Design
ACSI M1520M-1-ML2055-RWA-613-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure RW Lever Design, A Rose Design
ACSI M1520M-1-ML2055-RWA-625-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure RW Lever Design, A Rose Design
ACSI M1520M-1-ML2055-RWA-626-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure RW Lever Design, A Rose Design
ACSI M1520M-1-ML2055-RWA-630-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure RW Lever Design, A Rose Design
ACSI M1520M-1-ML2055-RWM-605-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure RW Lever Design, M Rose Design
ACSI M1520M-1-ML2055-RWM-606-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure RW Lever Design, M Rose Design
ACSI M1520M-1-ML2055-RWM-612-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure RW Lever Design, M Rose Design
ACSI M1520M-1-ML2055-RWM-613-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure RW Lever Design, M Rose Design
ACSI M1520M-1-ML2055-RWM-625-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure RW Lever Design, M Rose Design
ACSI M1520M-1-ML2055-RWM-626-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure RW Lever Design, M Rose Design
ACSI M1520M-1-ML2055-RWM-630-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure RW 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-LWN-606-LC – Frequently Asked Questions

1) Does the ACSI M1520M-1-ML2055 mortise lock come with a cylinder?
No. The M1520M-1-ML2055-LC is supplied less cylinder, so you order the mortise cylinder separately and key it into your existing system. Plan on a mortise cylinder in your keyway with the cam the Corbin Russwin 2000 Series case takes. Cylinder spacing in the lock is 3-5/8 inches from lever to cylinder, and 2-7/16 inches lever to thumbturn.
2) What happens to this ACSI electric mortise lock if the power goes out?
It unlocks. The 1520M fail secure configuration locks the outside trim when power is applied (storeroom function energized) and releases to passage when power is removed, so a power failure leaves the door free-swinging from both sides. Worth knowing before you spec it on a stairwell or a room you need to stay secure during an outage. On the motor-controlled version the fail safe / fail secure mode is field selectable, so it can be switched in the field.
3) What door thickness and backset does the ACSI 1500 Series mortise lock need?
It is built for a 1-3/4 inch door with a 2-3/4 inch backset, the standard commercial mortise prep. 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 pocket has to be cut for a standard ANSI mortise case. Projection off the door face is 2-1/2 inches.
4) Will this ACSI mortise lock latch into my existing ANSI strike?
If your frame has the standard ANSI straight lip prep, yes. The lock ships with an ANSI straight lip strike measuring 4-7/8 x 1-1/4 inches with a 1-1/8 inch lip. The latchbolt is 5/8 x 1 inch with a 3/4 inch throw, and the auxiliary deadlatch throws 9/16 inch, so your strike needs the standard 1-inch latch cutout and an auxiliary ledge for the deadlatch to ride on.
5) What voltage and current does the ACSI 1500 Series electric mortise lock draw?
It runs on 12 to 24V, AC or DC, drawing 250mA inrush and 10mA holding. That holding draw is low enough to put several openings on one modest supply. It is continuous duty rated, so it can sit energized indefinitely without a duty cycle limit.
6) Is this ACSI electrified mortise lock approved for a Grade 1 commercial or institutional opening?
It is UL Listed, California State Fire Marshal approved, and meets ANSI/BHMA A156.13 Series 1000 at Operational and Security Grade 1. It also meets A117.1 accessibility code and is ADA compliant, which matters if you are standardizing across schools, hospitals, hotels, or offices.
7) Do I have to specify handing when ordering the ACSI M1520M mortise lever lock?
No handing to call out. The lock is field reversible, so one part number covers left and right hand openings and you set the hand during install. That also makes it easier to stock a single spare for a building with doors swinging both ways.
8) Can I monitor whether the door is latched with this ACSI mortise lock?
Yes, it carries a latchbolt monitor switch rated 2A at 30VDC and 3A at 125VAC, which you can run back to an access control panel or alarm to confirm the latch is seated. Request to exit is available as an option if you also need to signal egress and shunt an alarm.
9) What lever and rose options do I need to pick for the ACSI M1520M Corbin Russwin mortise lock?
Three decisions on the order form. Lever design is LW Lustra wrought, NS Newport, or PS Princeton. Trim is either the A rose at 2-1/4 inch diameter or the M escutcheon. Finish runs 605 bright brass, 606 satin brass, 612 satin bronze, 613 oil rubbed bronze, 625 bright polished chrome, 626 satin chrome, and 630 satin stainless. Lever length is 5-1/8 inches across the board, and the rose measures 2-1/4 by 2-1/4 inches.
10) Is this a Corbin Russwin lock or an ACSI lock?
Both, in effect. It starts as a Corbin Russwin 2000 Series ML2055 classroom mortise lever lock, and ACSI modifies it with motor-controlled fail secure electrification under their 1500 Series. So the case, trim, and prep are Corbin Russwin 2000 Series, which is useful if you are matching existing 2000 Series openings in the building, while the electrical behavior is ACSI.
11) What is the difference between the motor-controlled and solenoid-controlled ACSI 1500 Series mortise locks?
The M in M1520M means motor controlled. On the motor-controlled locks the fail safe / fail secure mode is user selectable in the field, so one lock covers either behavior, and power draw stays low at 10mA holding. The solenoid-controlled version of the 1500 Series is the alternative when you do not need that selectability. Both allow remote electric locking or unlocking while conforming to life-safety codes.
How fast can I get the ACSI ACSI-M1520M-1-ML2055-LWN-606-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-LWN-606-LC come with a warranty?
Absolutely. The ACSI ACSI-M1520M-1-ML2055-LWN-606-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-LWN-606-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-LWN-606-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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