ACSI M1520M-1-ML2055-R Corbin ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,206.70
$687.37

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

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Model: ACSI-M1520M-1-ML2055-ESA-626-LC
From the 1500 Series Collection
$1,206.70
$687.37
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$1,206.70
$687.37
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ACSI M1520M-1-ML2055-R CORBIN RUSSWIN 2000 SERIES OFFICE, ENTRY MORTISE LEVER LOCK FAIL SECURE OVERVIEW

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

ACSI M1520M-1-ML2055-R 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: 4-5/8 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 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"
  • Strike Lip: 1-1/8 Inch
  • Product Projection: 2-3/8 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
  • Hand; Field Reversible
  • 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-R ELECTRIFIED MORTISE LOCKS AVAILABLE CONFIGURATION

ACSI M1520M-1-ML2055-R Corbin Russwin 2000 Series Office, Entry Mortise Lever Lock Fail Secure Motor Controlled Reversible
ACSI M1520M-1-ML2055-ESA-626-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure ES Lever Design, A Rose Design
ACSI M1520M-1-ML2055-ESM-626-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure ES Lever Design, M Rose Design
ACSI M1520M-AE-1-ML2055-ESA-626-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure ES Lever Design, A Rose Design
ACSI M1520M-AE-1-ML2055-ESM-626-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure ES 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-ESA-626-LC – Frequently Asked Questions

1) What happens to the ACSI 1520M mortise lock when the power goes out?
It locks. The 1520M is set up fail secure, so the outside trim unlocks when power is applied and locks the moment power is removed, including a power failure. The inside lever always retracts the latch for egress. Because it is a motor-controlled lock, 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 that instead.
2) Does the ACSI M1520M electric mortise lock come with a cylinder?
No. It ships less cylinder on every configuration, so you supply a Corbin Russwin mortise cylinder in your building's keyway along with the correct cam. That is normally what a locksmith wants anyway, since it lets the lock go straight onto the existing master key system. Cylinder to lever spacing is 3-5/8 inches, and lever to thumbturn is 2-7/16 inches.
3) What voltage and current does the ACSI 1500 Series motor controlled mortise lock need?
It runs on 12 to 24V, AC or DC, drawing 250mA inrush and 10mA holding. The low holding current is what lets a motor-driven lock sit energized on a continuous duty basis without cooking a power supply, and it means you can put several openings on one modest supply. Size the supply for the inrush of every lock that could actuate at once.
4) Do I need to specify handing when ordering the ACSI M1520M-1-ML2055-R mortise lock?
No. The lock is field reversible, so one part number covers left and right hand openings and you set the hand at install. For a property manager stocking spares across a building, that means a single lock on the shelf covers any door in the fleet rather than one of each hand.
5) Is this ACSI electrified mortise lock Grade 1 and does it meet accessibility requirements?
ANSI/BHMA A156.13 Series 1000, Operational and Security Grade 1, and it is UL Listed and California State Fire Marshal approved. It also meets the A117.1 accessibility code and is listed ADA compliant, which the 4-5/8 inch lever handle supports since a lever needs no tight grasping or twisting. For an institutional spec sheet those are the four lines a facilities buyer is looking for.
6) Will the ACSI 1520M mortise lock latch into my existing Corbin Russwin strike?
It uses a 4-7/8 x 1-1/4 inch straight lip strike with a 1-1/8 inch lip, and the latchbolt is 5/8 x 1 inch with a 3/4 inch throw, plus a 9/16 inch auxiliary deadlatch. That is the standard ANSI mortise strike footprint, so if your frame is already prepped for a 4-7/8 inch ANSI strike it lines up. The latchbolt is a 2-piece mechanical type with an anti-friction insert, which is what keeps it latching on a door under stack pressure in a stairtower.
7) What is the difference between the AE and non-AE versions of the ACSI M1520M mortise lock?
AE is the Authorized Egress option. The base M1520M-1 gives standard control where the electric function locks the outside secure side trim; the M1520M-AE-1 adds authorized egress for openings where the inside side needs to be controlled or monitored as well. Both are offered with the ES lever in either the A rose or M rose design, in satin chrome, less cylinder.
8) Can I monitor whether the door is actually latched with the ACSI 1500 Series lock?
Yes, a latchbolt monitor is part of the electrical configuration, so the lock reports latchbolt status back to the access control or life safety head end. That is how you prove a stairtower or secure room door actually latched rather than just closed, and it is why this lock is specified where it has to interface with life safety systems.
9) How far does the ACSI mortise lever lock stick out from the door face?
Projection is 2-3/8 inches, with a 2-1/4 inch square rose. That matters on a door beside a wall return or in a tight corridor where a lever swing could foul something, and on paired doors with astragals. Hub is 5/16 inch steel, so it takes the standard heavy-duty spindle rather than a light residential one.
10) Is the ACSI M1520M lock suitable for high traffic doors in a hotel or hospital?
It is a commercial Grade 1 device rated for offices, schools, hospitals and hotels, with a heavy gauge steel front and steel hub, and it is continuous duty rated so it can stay energized around the clock. The anti-friction latchbolt insert cuts wear where the door is cycled constantly. For a property manager standardizing a building, the field reversible design means the same lock covers every hand of door on the floor.
How fast can I get the ACSI ACSI-M1520M-1-ML2055-ESA-626-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-ESA-626-LC come with a warranty?
Absolutely. The ACSI ACSI-M1520M-1-ML2055-ESA-626-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-ESA-626-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-ESA-626-LC from ZenSupply?
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