ACSI Corbin Russwin 2000 Serie...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$682.00
$394.30
ACSI ACSI Corbin Russwin 2000 Series Classroom Mortise Lever Lock Body Modified with Fail Secure Operation M1520M-1-ML2055-LL

ACSI Corbin Russwin 2000 Series Classroom Mortise Lever Lock Body Modified with Fail Secure Operation

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Model: M1520M-1-ML2055-LL
From the 1500 Series Collection

In Stock (leaves warehouse same day if ordered before 3pm ET)

$682.00
$394.30
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ACSI M1520M-1-ML2055-LL CORBIN RUSSWIN 2000 SERIES OFFICE, ENTRY MORTISE LEVER LOCK FAIL SECURE OVERVIEW

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

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-LL Corbin Russwin 2000 Series Office, Entry Mortise Lever Lock Fail Secure Motor Controlled L Rose L Lever Design for easy installation and dependable door hardware solution.

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

  • Function: 1520M-Fail Secure Control
  • Product Type: Lock Part/Accessory
  • For Use With: Corbin Russwin 2000 Series Mortise Locks
  • Handle Type: Lever
  • ADA Compliant: No
  • Standards: UL Listed; California State Fire Marshall Approved; Continuous Duty Rated
  • Function Family: Part/Component
  • Features: Motor Controlled; 12/24 V Operation; Low Power Consumption; Lockset will Lock in the Event of a Power Failure
  • Manufacturer Parent: ACSI

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

ACSI M1520M-1-ML2055-LL Corbin Russwin 2000 Series Office, Entry Mortise Lever Lock Fail Secure Motor Controlled L Rose L Lever Design
ACSI M1520M-1-ML2055-LL-605 Corbin Russwin 2000 Series Mortise Lock Fail Secure 605 - Bright Brass
ACSI M1520M-1-ML2055-LL-605-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure 605 - Bright Brass
ACSI M1520M-1-ML2055-LL-606 Corbin Russwin 2000 Series Mortise Lock Fail Secure 606 - Satin Brass
ACSI M1520M-1-ML2055-LL-606-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure 606 - Satin Brass
ACSI M1520M-1-ML2055-LL-612 Corbin Russwin 2000 Series Mortise Lock Fail Secure 612 - Satin Bronze
ACSI M1520M-1-ML2055-LL-612-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure 612 - Satin Bronze
ACSI M1520M-1-ML2055-LL-613 Corbin Russwin 2000 Series Mortise Lock Fail Secure 613 - Satin Bronze Oil-Rubbed
ACSI M1520M-1-ML2055-LL-613-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure 613 - Satin Bronze Oil-Rubbed
ACSI M1520M-1-ML2055-LL-625 Corbin Russwin 2000 Series Mortise Lock Fail Secure 613E - Dark Oxidized Satin Bronze
ACSI M1520M-1-ML2055-LL-625-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure 613E - Dark Oxidized Satin Bronze
ACSI M1520M-1-ML2055-LL-626 Corbin Russwin 2000 Series Mortise Lock Fail Secure 629 - Bright Stainless Steel
ACSI M1520M-1-ML2055-LL-626-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure 629 - Bright Stainless Steel
ACSI M1520M-1-ML2055-LL-630 Corbin Russwin 2000 Series Mortise Lock Fail Secure 630 - Satin Stainless
ACSI M1520M-1-ML2055-LL-630-LC Corbin Russwin 2000 Series Mortise Lock Fail Secure 630 - Satin Stainless

Product Specs

Series:
1500 Series
Collection:
1500 Series
Product Type:
Electronic Mortise Locks
ADA Compliant:
No
Features:
Motor Controlled, 12/24 V Operation, Low Power Consumption, Unlocks Outside Lockset in the Event of a Power Failure
Subcategory:
Electrified Mortise Locks
Commercial/Residential:
Commercial
UL Listing Type:
UL Listed, California State Fire Marshall Approved, Continuous Duty Rated
Lock Type:
Mortise
Electronic:
Yes
Compatibility:
Corbin Russwin 2000 Series Mortise Locks
Handle Type:
Lever
Lock Function:
Part/Component
Product Group:
Mechanical Locks
Product Subgroup:
Mortise Locks and Trim
Product Function:
Part/Component
Product Category:
Mechanical Locks
Department:
Door Hardware

ACSI M1520M-1-ML2055-LL – Frequently Asked Questions

1) What happens to the ACSI 1500 Series fail secure mortise lock when the power drops?
It locks. Fail secure means power is what unlocks the outside lever, so on a power failure the outside (secure side) trim stays locked and no one gets in without a key. The inside lever always retracts the latch for free egress, which is why these are used on stairtower and controlled-access doors. If you need the door to release and allow entry when power is lost, you need a fail safe (power to lock) unit instead, not this one.
2) Is the ACSI electrified Corbin Russwin mortise lock UL Listed and accepted in California?
UL Listed and California State Fire Marshal approved, plus continuous duty rated. That combination is what gets it past an AHJ on a stairwell or a controlled egress opening in California. The 1500 Series is built to conform to life-safety codes while still allowing remote electric locking and unlocking.
3) Should I choose the motor controlled or the solenoid controlled ACSI 1500 Series electric mortise lock?
The M1520M-1-ML2055-LL is the motor controlled version. ACSI builds the 1500 Series in both motor and solenoid control. Motor control draws current only while the motor repositions, so it's the choice when you're running many doors off one supply or you care about heat and standby load. Solenoid control holds a coil energized in one state, which is simpler to wire but a steadier draw. Both give you remote electric locking or unlocking on the same 2000 Series body.
4) Do I get the lever trim and rose with the ACSI M1520M-1-ML2055-LL, or just the lock body?
The LL suffix on M1520M-1-ML2055-LL is the Corbin Russwin trim designation: L lever design on an L rose. The ML2055 is the classroom function 2000 Series body ACSI modified for fail secure motor control. If you order an LC version you are getting it less cylinder, so you supply a mortise cylinder in your own keyway to match the rest of the building.
5) Can I use the ACSI 1500 Series electric mortise lock on a stairwell door that has to relock on a fire alarm?
That is exactly the application ACSI builds the 1500 Series for. These electric mortise locks are made for stairtower doors and controlled areas where the opening has to both lock and latch, and they let you unlock or relock remotely while still meeting life-safety code. Because this one is fail secure, it returns to locked on loss of power, which is the behavior most stairwell reentry schemes want on an alarm drop. It's a commercial-duty assembly, not a residential lock.
6) Is a mortise electric lock like the ACSI M1520M better than an electric strike for my access controlled door?
Different work, different result. The M1520M-1-ML2055-LL electrifies the lock itself, so the latch and the deadlocking stay in the door and the frame keeps a standard strike, and the door still latches every time regardless of power. An electric strike moves the control into the frame instead, which is easier to retrofit but requires cutting the frame and leaves the existing lock unchanged. If the door already carries Corbin Russwin 2000 Series mortise locks and you want to add remote control without frame work, the electrified body is the swap that keeps the prep you have.
7) What finishes does the ACSI M1520M-1-ML2055-LL Corbin Russwin mortise lock come in?
Seven: 605 bright brass, 606 satin brass, 612 satin bronze, 613 oil-rubbed satin bronze, 625 dark oxidized satin bronze, 626 bright stainless steel, and 630 satin stainless. Each finish is also offered in an LC (less cylinder) version if you're supplying your own cylinder to match an existing keying system. For an institutional retrofit, 630 satin stainless is the one that matches most existing commercial openings.
How fast can I get the ACSI M1520M-1-ML2055-LL 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 M1520M-1-ML2055-LL come with a warranty?
Absolutely. The ACSI M1520M-1-ML2055-LL 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 M1520M-1-ML2055-LL?
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 M1520M-1-ML2055-LL 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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