Corbin Russwin ML20914 Grade 1...
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$1,977.69
$1,157.99
Corbin Russwin ML20914 Single Cylinder, Both Grips Lock, Mortise Electrified Lever Lockset, LS-Lustra Lever

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

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Model: ML20914-LSA-626-SAF
From the ML2000 Series Collection
$1,977.69
$1,157.99
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Corbin Russwin ML20914 -LS Mortise Electrified Lever Lockset with Lustra Lever, Single Cylinder Both Grips Lock, ANSI/BHMA Grade 1

Commercial-Grade Mortise Electrified Lockset with Motorized Electric Latch Retraction

The Corbin Russwin ML20914 -LS is a heavy-duty mortise electrified lever lockset from the ML2000 Series, engineered to meet the rigors of high-traffic, abusive commercial environments. Certified to ANSI/BHMA A156.13, Series 1000, Operational and Security Grade 1, this lockset features the Lustra (LS) lever design and a single cylinder, both grips lock function with Fail Safe/Fail Secure operation. Constructed of heavy-gauge steel, it accommodates a standard door thickness of 1-3/4" (with a range from 1-3/8" minimum to 4" maximum) and a standard backset of 2-3/4" (ranging from 2-3/8" minimum to 2-3/4" maximum). The latchbolt retracts in ½ second with applied power via Motorized Electric Latch Retraction (MELR), and EcoFlex® technology delivers up to 89% energy savings on all electromechanical functions.

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 Behavioral Health Facilities
  • Educational Facilities and Campuses
  • Government and Municipal Buildings
  • Retail Establishments
  • Industrial and Warehouse Facilities
  • Multi-Tenant Residential and Mixed-Use Properties

Why Choose Corbin Russwin Quality?

Corbin Russwin ML2000 Series mortise locksets are built from heavy-gauge steel and certified to ANSI/BHMA A156.13, Series 1000, Operational and Security Grade 1, ensuring they far exceed minimum requirements for durability and longevity in high-traffic, abusive environments. The ML20914 -LS 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, 3-hour fire door rating, ADA compliance, and EcoFlex® technology delivering up to 89% energy savings, this lockset is engineered for demanding commercial applications where dependable performance and code compliance are essential.

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:
ML20914
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-LSA-626-SAF – Frequently Asked Questions

1) What is the difference between the fail safe and fail secure versions of the Corbin Russwin ML20914?
Both are orderable on the ML20914. Fail safe unlocks the lever when power is removed, so the opening is free on a power loss, which is what egress and stair doors usually call for. Fail secure keeps the opening locked when power drops, with the key still working the cylinder. The function is selected at order time, not in the field, so pick the one your access control drawing and local code call for on that door.
2) Will the Corbin Russwin ML20914 fit a 1-3/4 inch door with a 2-3/4 inch backset?
That is exactly the standard prep for it. The ML20914 mortise electrified lockset is built for 1-3/4 inch door thickness with a 2-3/4 inch backset, the normal commercial hollow metal or wood door prep. The lock case itself measures 5-7/8 x 4 x 15/16 inches and the armored front is 8 x 1-1/4 inches, so the mortise pocket has to accept that body.
3) Do I have to order the ML20914 handed, or can it be reversed on site?
Handing is set in the field. The latchbolt is a patented Quick Reversible design, so the hand is changed without opening the lock case, and the catalog data lists the lock as field reversible. That is useful for an MRO stockroom keeping one lock on the shelf for both left and right openings.
4) Will the ML20914 latch into an existing ANSI strike, or do I need a new one?
The supplied strike is a wrought brass, bronze, or stainless ANSI straight lip, 4-7/8 x 1-1/4 inches with 1-1/8 inch lip to center. The latchbolt is a two-piece anti-friction unit with a 3/4 inch throw, plus a 9/16 inch deadlocking auxiliary latch, and the deadbolt throws 1 inch. If your frame already carries a standard ANSI 4-7/8 inch strike prep with 1-1/8 inch lip to center, the existing cutout works.
5) Can I use the ML20914 on a rated fire door?
Yes. The ML2000 Series lock is UL/cUL listed and UL10C positive pressure rated, good for a 3-hour fire door up to 4 by 10 feet single or 8 by 10 feet pair. It is certified to ANSI/BHMA A156.13 Series 1000, Operational and Security Grade 1, and meets ADA A117.1, with California State Fire Marshal and windstorm/hurricane certification also listed. Note that on a fail safe opening your AHJ may restrict unlocking a fire door on power loss, so confirm the function choice against the door's listing.
6) Does the ML20914 come with a cylinder, and will my existing Corbin Russwin keys work?
Both ways are orderable. You can take it less cylinder to reuse or supply your own, or take it with the 6-pin L4 keyway cylinder, which ships 0-bitted so a locksmith can key it into your system. The lock works with new or existing Corbin Russwin key systems and accepts most other manufacturers' cylinders, which is what lets a building already on another keyway keep one key.
7) What do I need to decide before ordering a Corbin Russwin ML20914 electrified mortise lock?
Five things. Function, fail safe or fail secure. Trim style, A rose or M or N escutcheon. Whether you want request to exit monitoring, which is a yes or no option and is how the access control panel sees the inside lever being used. Keying, less cylinder or L4 keyway. And the lever, which here is the LS Lustra cast lever in 626 satin chrome.
8) If I want credentials at the door rather than a wired electrified lock like the ML20914, what are the options?
Standalone and networked electronic mortise locks read the credential at the lock instead of relying on an access control panel. The BEST 45HZ EZ Series is an electronic keypad mortise lock with key override, the TownSteel FME-2000 is a Grade 1 classroom mortise lockset with RFID for a 1-3/4 inch door, and the Schlage LEMD-GRW is a Grade 1 ENGAGE wireless mortise lock with a 125kHz proximity reader. The Corbin Russwin ML20914 has no reader of its own; it is switched by the access control system through its Fail Safe or Fail Secure motorized latch retraction.
9) What should I use instead of the ML20914 if the opening does not have power run to the door?
A mechanical Grade 1 mortise lock covers that opening. The Accentra 8805FL is a Grade 1 storeroom mortise lock from the 8800 Series, and the Cal-Royal NM8080 is a Grade 1 storeroom mortise lockset for a 1-3/4 inch door with an interchangeable core option. The Corbin Russwin ML20914 is an electrified lock whose latchbolt retracts on applied power, so it needs a power supply and wire transfer at the door.
10) For a classroom or lockdown opening, is the ML20914 the right lock or should I look at something else?
For lockdown handled at the door without power, look at the Cal-Royal NM8070 Grade 1 classroom mortise lockset for a 1-3/4 inch door, the Marks USA LA318GJ classroom security indicator mortise lockset for a 1-3/4 inch door, the BEST 45HCA heavy-duty mortise lockbody with intruder function, or the TownSteel FME-4000 electronic intruder classroom mortise lockset with RFID. The Corbin Russwin ML20914 is a Fail Safe/Fail Secure electrified lock controlled from the access control system rather than from an inside keyed or thumbturn lockdown.
11) Should I order request to exit monitoring on an electrified mortise lock?
Order RX when the access control system needs to know someone left from the inside, to shunt a door alarm, log egress, or drop a mag lock relay. Skip it when the lock is only being released from the outside by reader or remote button. On the ML20914 it is a build option, not a field add, so it has to be specified with the order.
12) What is the difference between the rose and escutcheon trim on the ML20914?
The A rose is a compact round trim around the lever. The M and N escutcheons are full plates, and escutcheon trim is what carries the status indicator option showing locked or unlocked at a glance, along with sectional trim. All trim designs are thru-bolted for alignment and added pull-off resistance. Pick escutcheon if you want the indicator or you are covering old trim marks on a retrofit.
13) How does the Corbin Russwin ML20914 compare to a Schlage L9092EU electrified mortise lock?
They fill the same slot. The Schlage 03A electric lock/unlock outside lever mortise lock is a heavy duty corridor function unit, keyed outside, with request to exit and 12/24VDC operation, on a 1-3/4 inch door. The ML20914 differs in how it releases: motorized electric latch retraction pulls the latch itself back, rather than only controlling the outside lever, and it is offered either fail safe or fail secure. Both are 1-3/4 inch door products, so the deciding factor is usually which keyway and which access control platform the building already runs.
14) Is there a motorized electrified mortise lock I can use to retrofit an existing mortise prep from another brand?
Command Access ML190 Series is the option built around that job: a heavy-duty motorized mortise lock, storeroom function, with field selectable EL or EU operation on 24VDC, so one body covers fail safe or fail secure after it is installed. The Corbin Russwin ML20914 requires you to pick fail safe or fail secure at order time, but it brings a Grade 1 A156.13 certification and works with existing Corbin Russwin key systems.
15) How does the BEST 45HW compare to the Corbin Russwin ML20914 for an access-controlled opening?
Both are wired electromechanical mortise locks intended to be driven by an access control system. The BEST 45HW is a heavy-duty wired electromechanical mortise lock with 12V/24V operation. The Corbin Russwin ML20914 is Grade 1 with Motorized Electric Latch Retraction, a 2-3/4 inch backset, a 3/4 inch latchbolt, and an ANSI straight lip strike, and it is field reversible.
16) Will a Baldwin 6310 or 6301 mortise lock body drop into the same prep as the Corbin Russwin ML20914?
No. The Baldwin 6310 entry/storeroom and 6301 entry/apartment mortise lock bodies use a 2-1/2 inch backset, while the Corbin Russwin ML20914 is built to a 2-3/4 inch backset with an ANSI straight lip strike. The Baldwin bodies are also mechanical, with no electrified latch retraction.
17) Which mortise locks look like substitutes for the ML20914 but will not secure the opening?
Trim-only and non-latching items are not substitutes. The Schlage L0170 is a half dummy trim, the Emtek 3102 Memphis and 3104 Hamilton are dummy mortise entrance locksets, the Falcon MESC600DT is a dummy escutcheon lever trim for M9900 exit devices, and the Sargent 130KB and 130W are mortise thumbturns. The Corbin Russwin ML20914 is a keyed, latching Grade 1 electrified mortise lockset with a 3/4 inch latchbolt.
18) For a behavioral health room, is the ML20914 suitable or is there a ligature-resistant mortise alternative?
Ligature-resistant trim is a separate product family. The TownSteel MRX-L-01 is a Grade 1 heavy-duty anti-ligature lever mortise lockset in stainless steel with passage function for a 1-3/4 inch door, the MRX-A-01 is the arch trim passage version, and the Marks USA 5PDN is a Grade 1 ligature-resistant hospital passage push/pull paddleset. The Corbin Russwin ML20914 is a Grade 1 electrified lockset with the Lustra lever, and Behavioral Health BHSS/BLSS trim designs exist within the ML2000 Series trim range.
19) Can I use a battery or keypad mortise lock like the Alarm Lock DL3500CR in place of the ML20914 on a 1-3/4 inch door?
Check the door first. The Alarm Lock DL3500CR and DL2700CR Trilogy electronic mortise locks are Grade 1 classroom-function locks rated for doors 1-5/8 inch to 1-7/8 inch, so a 1-3/4 inch door falls in range, and the DL3500CR carries 300 user codes. The Corbin Russwin ML20914 is standard for a 1-3/4 inch door and is a wired Fail Safe/Fail Secure lock, so choosing the Trilogy changes the opening from panel-controlled access to codes managed at the lock.
20) What is the difference between the Corbin Russwin ML20914 and the Dormakaba E-Plex E5086?
The Dormakaba E-Plex E5086 is a Grade 1 entry/egress electronic pushbutton and card mortise lock in a back-to-back configuration from the E-Plex 5X86 Series, with credentials presented at the lock. The Corbin Russwin ML20914 is a Grade 1 ML2000 Series electrified mortise lockset with Motorized Electric Latch Retraction, a 2-3/4 inch backset, and a 6-pin L4 keyway cylinder, switched from an external access control system.
21) Do I need a full electrified lockset like the ML20914 for a door that only needs a latch, no locking?
No. A passage mortise lock is the simpler answer. The Schlage PM010 is a Grade 1 non-keyed passage latch mortise lock for a 1-3/4 inch door, the Falcon MA101 is a Grade 1 heavy-duty field-reversible mortise passage lock with a fire rating, and the Hager 3810S and 3810E are Grade 1 passage mortise locks with a 2-3/4 inch backset in rose and escutcheon trim. The Corbin Russwin ML20914 is a keyed electrified lock intended for access-controlled openings.
22) For a dormitory or corridor opening, what mechanical mortise lock compares to the ML20914?
The Sargent 7925 is a Grade 1 heavy-duty corridor/dormitory exit function mortise lock from the 7900 Series with rose trim and a single cylinder deadbolt. The Corbin Russwin ML20914 is a Grade 1 single cylinder, both grips lock function that is electrified, ordered Fail Safe or Fail Secure, and available in rose or escutcheon trim.
23) How durable is the ML20914 for a high traffic entrance?
The lock case is heavy-gauge steel and the lock is certified to ANSI/BHMA A156.13 Series 1000, Operational and Security Grade 1, the top commercial tier. Corbin Russwin publishes a UL cycle result of 14.5 million cycles, verification ID V875753. The two-piece latchbolt has an anti-friction insert so the door needs less force to close, which is what keeps a busy door latching properly over time.
24) If I only need a mechanical mortise lock on the door, not an electrified one, what are my options?
Plenty, and you save the power supply and wiring. Cal-Royal NM8050 office/entrance, NM8070 classroom, NM8080 storeroom and NM8440 privacy are all Grade 1 heavy duty mortise locksets for 1-3/4 inch doors. Accentra 8805FL is a Grade 1 storeroom mortise lock in the 8800 Series. Hager 3800 Series covers passage, privacy and office functions on a 2-3/4 inch backset. Go electrified with the ML20914 only where the door has to be released remotely.
25) Can one ML2000 lockbody cover several different functions across my building?
Yes, and that is the standardization argument for the series. Twelve functions are configurable from a single ML2054 lockbody, which cuts down how many distinct lock bodies a facility has to stock. Trim choices run wide too, including Museo, Vineyard, and the behavioral health BHSS and BLSS designs for psychiatric and patient areas.
26) Is the Sargent 4874 or Kaba Ilco 185 a substitute for the ML20914?
No. The Sargent 4874 is a double cylinder mortise deadbolt with a 2-3/4 inch backset and the Kaba Ilco 185 Series is a no-handing mortise deadbolt, so neither carries a lever or a latchbolt. The Corbin Russwin ML20914 is a lever lockset with a 3/4 inch latchbolt and electrified latch retraction, and its ML2054-based lockbody includes a 1 inch throw stainless steel deadbolt.
27) Are the Marks USA 21AC and 22AC mortise locks an option in place of the ML20914?
They serve a different door. The Marks USA 21AC and 22AC are entrance double cylinder ornamental iron mortise locks with a round knob, built for a 1 inch door. The Corbin Russwin ML20914 is standard for a 1-3/4 inch door with a 2-3/4 inch backset and is a lever trim electrified lockset.
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Does the Corbin Russwin ML20914-LSA-626-SAF come with a warranty?
Absolutely. The Corbin Russwin ML20914-LSA-626-SAF is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
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