Corbin Russwin ML20914 Grade 1...
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$1,157.99
Corbin Russwin ML20914 Single Cylinder Mortise Electrified Lever Lockset, AS-Armstrong Lever

Corbin Russwin ML20914 Grade 1 Single Cylinder, Both Grips Lock, Mortise Electrified Lever Lockset, AS-Armstrong Lever

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Model: ML20914-ASA-626-SAF
From the ML2000 Series Collection
$1,977.69
$1,157.99
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Corbin Russwin ML20914-AS Mortise Electrified Lever Lockset, Single Cylinder Both Grips Lock with Armstrong Lever, Fail Safe/Fail Secure, ANSI/BHMA Grade 1

Commercial-Grade Electrified Mortise Security for High-Traffic, Demanding Environments

The Corbin Russwin ML20914-AS Mortise Electrified Lever Lockset is a heavy-duty, ANSI/BHMA A156.13 Series 1000 Grade 1 electrified mortise lockset engineered for high-traffic, abusive commercial environments. Featuring the Armstrong (AS) lever design, this single-cylinder, both-grips-lock unit supports both Fail Safe (SAF) and Fail Secure (SEC) operating modes, making it fully adaptable to a wide range of access control requirements. Constructed of heavy-gauge steel, it accommodates door thicknesses from 1-3/8" to 4" with a standard backset of 2-3/4" and a 3/4" latchbolt throw, and is compatible with wood, hollow metal, and bullet-resistant doors. UL listed, UL10c compliant, and rated for use on fire doors up to and including 3-hour fire ratings, this lockset delivers uncompromising security and code compliance for the most demanding commercial applications.

Professional Features & Benefits

  • ANSI/BHMA Grade 1 mortise lock per A156.13 Series 1000, Operational and Security Grade 1
  • UL Cycle above and beyond: 14.5 Million Cycles (Verification ID: V875753)
  • Patented Quick Reversible latchbolt — reverse handing without disassembling the lock case
  • Multi-function capability: 12 functions configurable from one ML2054 lockbody
  • Heavy-gauge steel lockcase 5-7/8" x 4" x 15/16"; 1" stainless steel deadbolt, 1" throw
  • 3/4" (19mm) throw anti-friction two-piece latchbolt requires less force to close
  • Wide variety of trim designs including Muséo®, Vineyard™, Behavioral Health (BHSS/BLSS)
  • Status indicator options for locked/unlocked visibility (sectional and escutcheon trim)
  • Motorized Electric Latch Retraction (MELR) available for ML20900 series
  • Thru-bolted trim designs for proper alignment and increased security
  • Can be used with new or existing Corbin Russwin key systems; accepts most other manufacturers' cylinders
  • UL/cUL listed, UL10C positive pressure; 3-hour fire door up to 4' x 10' single or 8' x 10' pair
  • Ten-year mechanical warranty; five-year MELR; two-year electrical

Technical Specifications

  • Grade: ANSI/BHMA A156.13 Series 1000, Operational and Security Grade 1
  • Handing: Handed; quick reversible — re-handed without disassembling the lock case
  • Door Thickness: 1-3/4" (44mm) standard; optional thicknesses available
  • Backset: 2-3/4" (70mm)
  • Lockcase: Heavy-gauge steel, 5-7/8" (149mm) x 4" (102mm) x 15/16" (24mm)
  • Armored Front: Wrought brass, bronze, or stainless steel, 8" x 1-1/4"
  • Latchbolt: 2-piece mechanical with anti-friction insert, 5/8" x 1" x 3/4" (19mm) throw
  • Auxiliary Latchbolt: 9/16" (14mm) effective throw; deadlocking
  • Deadbolt: One-piece stainless steel, 19/32" x 1-1/4" x 1" (25mm) throw
  • Strike: Wrought brass, bronze, or stainless steel, ANSI straight lip, 4-7/8" x 1-1/4" x 1-1/8" lip to center
  • Cylinder: Brass, 6-pin L4 keyway, 0-bitted standard
  • Spacing: C. to c. knob/lever to cylinder: 3-5/8" (92mm); knob/lever to thumbturn: 2-7/16" (62mm)
  • Certifications: ANSI/BHMA A156.13 Grade 1; UL/cUL UL10C 3-hour positive pressure; ADA A117.1; California State Fire Marshal; Windstorm/Hurricane certified
  • Warranty: Ten-year mechanical; five-year MELR; two-year electrical

Professional Applications

  • Commercial Office Buildings
  • Healthcare Institutions and Medical Facilities
  • Educational Facilities and Campus Buildings
  • Government and Municipal Buildings
  • Retail Establishments and Mixed-Use Properties
  • Industrial and Warehouse Facilities
  • Multi-Tenant Residential and Hospitality Properties

Why Choose Corbin Russwin Quality?

Corbin Russwin ML2000 Series mortise locksets are built to exceed ANSI/BHMA A156.13 Series 1000 Grade 1 requirements, constructed of heavy-gauge steel and engineered to withstand the rigors of high-traffic, abusive environments. The ML20914-AS is backed by a ten-year mechanical warranty, a five-year MELR warranty, and a two-year electrical warranty, reflecting Corbin Russwin's commitment to long-term reliability. With UL listing, UL10c compliance, ADA compliance, and a 3-hour fire door rating, this electrified mortise lockset delivers the certifications and performance that demanding commercial applications require.

Product Specs

Subcategory:
Mortise Locks
Product Group:
Mechanical Locks
Series:
ML2000 Series
Standard Latch:
3/4" Latchbolt
Standard Strike:
ANSI-Straight Lip,1-1/8" (29mm) Lip to Center
Product Subgroup:
Mortise Lockset
Product Type:
Mortise Locks
Commercial/Residential:
Commercial
Lock Type:
Mortise
Lock Function:
Fail Safe/Fail Secure
Product Model:
ML20906
Collection:
ML2000 Series
Product Function:
Fail Safe/Fail Secure
Door Hand Direction:
Field Reversible
Door Thickness Range:
1-3/4"
Product Substrate:
Steel
Product Category:
Mechanical Locks
Backset (Distance):
2-3/4"
Department:
Door Hardware

Corbin Russwin ML20914-ASA-626-SAF – Frequently Asked Questions

1) What is the difference between the Fail Safe and Fail Secure versions of the Corbin Russwin ML20914?
Both operating modes are orderable on the ML20914 electrified mortise lockset. Fail Safe unlocks the outside lever when power drops, which is what you want on an egress path or stair door that has to release in a power failure or fire alarm. Fail Secure keeps the outside lever locked when power is lost, so the opening stays secure and entry still depends on the key or credential. Pick the mode against your local code and the access control sequence before you order, because it is a build option on the lock, not a field switch.
2) Will the Corbin Russwin ML20914 mortise lock fit a 1-3/4 inch door with a 2-3/4 inch backset?
That is exactly the standard prep for it. The ML20914 is built for a 2-3/4 inch backset and 1-3/4 inch door thickness as standard, with optional thicknesses available from 1-3/8 inch up to 4 inch doors. It goes into wood, hollow metal, and bullet-resistant doors. Lock case is heavy-gauge steel at 5-7/8 x 4 x 15/16 inches, and the armored front measures 8 x 1-1/4 inches, so an existing ANSI mortise pocket of that size takes it directly.
3) Do I need to order the Corbin Russwin ML20914 handed, or can it be reversed in the field?
Handing is field reversible. The ML20914 uses Corbin Russwin's quick reversible latchbolt, so the hand can be changed without taking the lock case apart. That matters if you are stocking spares across a building instead of buying a specific hand for every opening.
4) Can I use the ML20914 on a 3-hour fire rated door?
Yes. The ML20914 is UL and cUL listed, UL10C positive pressure, and rated for fire doors up to and including 3-hour ratings, to 4 ft x 10 ft single or 8 ft x 10 ft pair. It also meets ADA A117.1, carries California State Fire Marshal listing, and is windstorm/hurricane certified. For an institutional spec it is ANSI/BHMA A156.13 Series 1000, Operational and Security Grade 1.
5) Will the ML20914 latch into my existing ANSI mortise strike?
It should. The lock ships with a wrought brass, bronze, or stainless ANSI straight lip strike, 4-7/8 x 1-1/4 inches with 1-1/8 inch lip to center, and throws a 3/4 inch two-piece anti-friction latchbolt plus a 9/16 inch effective-throw deadlocking auxiliary latch. If the frame already has a standard 4-7/8 inch ANSI strike prep with the same lip-to-center, the new lock lines up. The deadbolt is one-piece stainless with a full 1 inch throw.
6) What do I have to specify when ordering the Corbin Russwin ML20914 electrified mortise lockset?
Six things. Function, Fail Safe or Fail Secure. Finish, 625 bright chrome or 626 satin chrome. Keying, either an L4 keyway cylinder or less cylinder if you are supplying your own. Request to exit monitoring, yes or no. Trim style, A or B rose or M, N, or R escutcheon. The lever is Armstrong (AS) cast on this configuration.
7) Do I have to use a Corbin Russwin cylinder in this mortise lock, or will my existing keyway work?
The ML20914 can be used with new or existing Corbin Russwin key systems and accepts most other manufacturers' cylinders. Standard supply is a brass 6-pin L4 keyway cylinder, 0-bitted. If your building is keyed to another system, order the lock less cylinder and fit your own mortise cylinder. Center to center is 3-5/8 inches lever to cylinder, and 2-7/16 inches lever to thumbturn.
8) I need an electrified mortise lock but my access control panel is not installed yet - what mechanical alternative uses the same prep?
If the opening is going in without power, a mechanical Grade 1 mortise lock fills the same mortise pocket. The Accentra 8805FL is a Grade 1 storeroom mortise lock with Arcadia lever, and the Cal-Royal NM8080 is a Grade 1 storeroom mortise lockset with an interchangeable core option for 1-3/4 inch doors. For classroom function, the Cal-Royal NM8070 is Grade 1 at the same 1-3/4 inch thickness. The ML20914 differs in that it is electrified and configurable as Fail Safe or Fail Secure.
9) What is the closest cross-brand equivalent to the Corbin Russwin ML20914 electrified mortise lockset?
The Schlage L9092EU with 03A lever trim is the nearest peer: a heavy duty electrified mortise lock with keyed outside lever, request-to-exit monitoring, and 12/24VDC operation for 1-3/4 inch doors. The ML20914 covers the same ground with Fail Safe and Fail Secure configurations, request-to-exit monitoring available, and a 2-3/4 inch backset. Another wired option is the BEST 45HW electromechanical mortise lock, also 12V/24V and heavy duty.
10) What should I use instead of the ML20914 if there is no access control system to wire into?
A standalone electronic mortise lock runs on its own credentials with no panel or wiring home run. The Alarm Lock DL3500CR is a Grade 1 electronic mortise lock with 300 user codes and classroom function for 1-5/8 inch to 1-7/8 inch doors, and the Schlage CO-100-MS-40-KP is a Grade 1 heavy duty standalone electronic mortise lock with keypad reader in privacy function for 1-3/4 inch doors. The ML20914 is the choice when the opening is being tied back to a panel, since it is a wired Fail Safe/Fail Secure lockset.
11) Which mortise products look like substitutes for the ML20914 but will not secure the opening?
Several mortise-family items in the same size range do not latch or lock at all. The Schlage L0170 is a Grade 1 half dummy trim, and the Emtek 3102 Memphis and 3106 Manhattan mortise entrance locksets are dummy function. The Schlage PM010 is a Grade 1 non-keyed passage latch mortise lock, and the Hager 3810S is a passage mortise lock with rose. The Sargent 130KB and 130W are mortise thumbturns only. The ML20914 is a keyed, electrified lockset with a Fail Safe/Fail Secure function and a 3/4 inch latchbolt.
12) What does Request to Exit monitoring add on this lockset, and do I need it?
RX gives the access control panel a signal the moment the inside lever is turned, so the system knows an authorized egress happened rather than logging a forced door. Specify it if the opening is tied to a door position switch and alarm shunt, or if you need audit records of exits. On a simple electrically controlled entry with no monitoring back to the panel, you can leave it off. It is ordered as a yes or no option on the ML20914.
13) What is the difference between the rose and escutcheon trim options on the ML20914?
Rose trim (A or B) is a compact round or shaped plate around the lever only, and is what most office and corridor openings get. Escutcheon trim (M, N, or R) is a full plate covering lever and cylinder together, which hides the mortise prep and is the usual choice where you want a heavier look or a status indicator. Status indicator options for locked/unlocked visibility are available on sectional and escutcheon trim. All trim is thru-bolted for alignment and added security.
14) Is the ML20914 durable enough for a high-traffic entrance in an apartment building or school?
It is built for that. Heavy-gauge steel lock case, ANSI/BHMA A156.13 Series 1000 Operational and Security Grade 1, and UL cycle tested to 14.5 million cycles (verification ID V875753). The 3/4 inch anti-friction two-piece latchbolt also takes less force to close, which helps on doors with closers that get slammed all day.
15) I need an electrified mortise lock but not on Corbin Russwin hardware. What else is comparable?
A few directions depending on what drives the choice. For a wired electrified mortise lock body, the BEST 45HW series runs 12V/24V operation, and the Schlage L9092EU with 03A trim is a 12/24VDC electric-unlock corridor mortise lock with Request to Exit, rated for 1-3/4 inch doors. If you want field-selectable fail safe / fail secure in one lock, the Command Access ML190 series is a motorized 24VDC mortise lock with EL/EU selectable operation in storeroom function. Those are electrified like the ML20914; the keypad and RFID mortise locks are a different animal, see the standalone question.
16) Should I use a wired electrified mortise lock like this or a standalone electronic mortise lock with a keypad?
The ML20914 has to be wired to a power supply and an access control panel, which is what you want when the opening belongs to a card system with central control, scheduling, and alarm monitoring. If there is no wire to the door and no panel, a standalone lock makes more sense: the Alarm Lock DL3500CR Trilogy is a Grade 1 classroom-function keypad mortise lock for 1-5/8 to 1-7/8 inch doors, and the TownSteel FME-2000 is a Grade 1 heavy duty RFID classroom mortise lockset for 1-3/4 inch doors. Standalone means no conduit, but you manage codes or credentials at the door rather than from software.
17) Is there a credential-reading mortise lock I can use instead of running wire to each door?
Wireless and RFID mortise locks avoid a wired run. The Schlage LEMD-GRW is a Grade 1 ENGAGE Series wireless mortise lock with a 125kHz proximity reader and a 3-hour fire rating; the TownSteel FME-2000 is a Grade 1 heavy duty classroom mortise lockset with RFID for 1-3/4 inch doors; the Alarm Lock DL1300NW is a Trilogy Networx wireless electronic mortise lock with keypad for Adams Rite deadlatches. The ML20914 is the hardwired path, configurable Fail Safe or Fail Secure with optional request-to-exit monitoring.
18) My drawing calls for electric latch retraction rather than a locked lever - what mortise lock does that?
The Command Access ML190 Series ML19092-M is a motorized mortise lock with field selectable EL/EU operation on 24VDC, heavy-duty, storeroom function - that covers motorized latch retraction with either electrically locked or unlocked behavior selected in the field. The Corbin Russwin ML20914 handles the lever-control side as a Fail Safe/Fail Secure electrified lockset on a 2-3/4 inch backset with a 3/4 inch latchbolt.
19) Will a mortise lock body alone work in place of the ML20914?
A lock body is sold without the lever trim and without electrification. The BEST 45HCAC is a heavy duty mortise lock body in public entrance function with field reversible operation, and the Baldwin 6301LS is an entry/apartment lever-by-lever mortise lock body with a 2-1/2 inch backset for doors 1-3/4 inch and over. Note the backset difference: the ML20914 is a 2-3/4 inch backset, and it ships as a complete electrified lockset with an Armstrong lever and a choice of rose or escutcheon trim.
20) For a behavioral health or anti-ligature opening, what mortise lockset should I look at instead of the ML20914?
For ligature-resistant trim, the TownSteel MRX-L-01 is a Grade 1 heavy duty stainless steel anti-ligature lever mortise lockset in passage function for 1-3/4 inch doors, and the MRX-A-01 is the same passage function with satin stainless ligature resistant arch trim. The Marks USA 5PDN is a Grade 1 hospital passage mortise push/pull paddleset, ligature resistant and ADA compliant. All three are passage function; the ML20914 is a keyed electrified lockset with Fail Safe/Fail Secure operation.
21) Does a mortise deadbolt substitute for the ML20914 on an entry door?
No - a deadbolt gives no latching or lever operation. The Sargent 4874 is a double cylinder mortise deadbolt on a 2-3/4 inch backset, the Kaba Ilco 185 Series is a no-handing mortise deadbolt, and the Alarm Lock DL4500 is a Grade 1 electronic mortise deadbolt with 2,000 user codes and privacy keypad for 1-5/8 inch to 1-7/8 inch doors. The ML20914 is a latching electrified lockset with a 3/4 inch latchbolt and both-grips lever control.
22) My door is thinner than 1-3/4 inches - what mortise locks cover that range?
The Corbin Russwin ML20914 is specified at 1-3/4 inch door thickness. For thinner leaves, the Baldwin 6310 entry/storeroom mortise lock body covers 1-3/8 inch and over on a 2-1/2 inch backset, and the Marks USA 21AC and 22AC ornamental iron mortise locks are listed at 1 inch door thickness for narrow iron stiles. Confirm backset before ordering, since the Baldwin bodies use 2-1/2 inches against the 2-3/4 inch backset on the ML20914.
23) Can I standardize on one ML2000 lock body across different functions in my building?
Largely, yes. The ML2000 platform is multi-function: 12 functions are configurable from a single ML2054 lock body, so a maintenance shop can carry fewer lock cases and change function rather than restock. Combine that with field reversible handing and you can cover a lot of openings from a small spare inventory. Trim is where you keep the building consistent, and finishes here are 625 bright chrome and 626 satin chrome.
24) Does the ML20914 support electric latch retraction for a card reader entry with no lever operation?
Motorized Electric Latch Retraction (MELR) is offered on the ML20900 series, which is the electrified family the ML20914 belongs to. MELR pulls the latch back on signal so the door can be pushed or pulled open without turning the lever, which is how you handle an automatic operator or a hands-free entry. It is a separate build option from the standard Fail Safe / Fail Secure lever control, so specify it at order time.
25) Is there a Grade 2 electronic mortise option, and how does it differ from the ML20914?
The Schlage LEBMB-ADD is a Grade 2 mobile-enabled mortise lock with push button and LED, covering privacy, office and apartment functions on 1-3/4 inch doors with a 3-hour fire rating. The Dormakaba Saffire LX-I-M002 is a BHMA Grade 2 electronic RFID mortise lockset with BLE mobile access. The Corbin Russwin ML20914 is built to ANSI/BHMA A156.13 Series 1000 Grade 1, operational and security, for high-traffic commercial openings.
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Does the Corbin Russwin ML20914-ASA-626-SAF come with a warranty?
Absolutely. The Corbin Russwin ML20914-ASA-626-SAF is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
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