Corbin Russwin ML20914 Grade 1...
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$1,977.69
$1,135.00
Corbin Russwin ML20914 Single Cylinder, Both Grips Lock, Mortise Electrified Lever Lockset, NS-Newport (Cast) Lever

Corbin Russwin ML20914 Grade 1 Single Cylinder, Both Grips Lock, Mortise Electrified Lever Lockset, NS-Newport (Cast) Lever

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Model: ML20914-NSA-626-SAF
From the ML2000 Series Collection
$1,977.69
$1,135.00
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Corbin Russwin ML20914 -NS Mortise Electrified Lever Lockset, Single Cylinder Both Grips Lock with Newport Cast Lever, Fail Safe/Fail Secure

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

The Corbin Russwin ML20914 -NS Mortise Electrified Lever Lockset is a heavy-gauge steel, ANSI/BHMA A156.13 Series 1000 Grade 1 mortise lock engineered for high-traffic and abusive commercial environments. Featuring the Newport (Cast) lever design, this single-cylinder lockset supports both Fail Safe (SAF) and Fail Secure (SEC) operational modes, making it fully compatible with access control platforms. Designed for doors with a standard thickness of 1-3/4" (accommodating 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), this lockset delivers consistent, reliable performance. UL listed, UL10c compliant, and ULC listed, it is rated for use on fire doors up to and including a 3-hour fire rating, and is ADA compliant.

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 constructed of heavy-gauge steel and engineered to far exceed ANSI/BHMA A156.13 Series 1000 Operational and Security Grade 1 requirements, ensuring durability and longevity in the most demanding commercial environments. The ML20914 -NS 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 professional-grade performance and code compliance that commercial security applications demand.

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-NSA-626-SAF – Frequently Asked Questions

1) What is the difference between the Fail Safe and Fail Secure versions of the Corbin Russwin ML20914 mortise lock?
Both are orderable on the ML20914. Fail Safe (SAF) unlocks the outside lever when power is removed, so the opening is free on a power loss, which is what egress paths and stair doors usually want. Fail Secure (SEC) keeps the lever locked when power drops, so a secured room stays secured. Pick per opening and per your fire and life safety plan, because it is a factory-set electrical configuration, not a field switch.
2) Will the Corbin Russwin ML20914 fit a 1-3/4 inch door with a 2-3/4 inch backset prep?
Yes. The ML20914 is built for a 1-3/4 inch (44mm) door as standard with a 2-3/4 inch (70mm) backset, which is the normal commercial mortise prep. Optional thicknesses are available from 1-3/8 inch up to 4 inch, and the backset range runs 2-3/8 inch to 2-3/4 inch, so odd doors can be handled, but the stock configuration is the 1-3/4 inch / 2-3/4 inch combination.
3) Do I have to order the ML20914 handed, or can I re-hand it on the job?
Order it and re-hand it on site if needed. The ML2000 lockbody uses a patented quick reversible latchbolt, so the hand is changed without opening the lock case. That matters when a door swing on the drawing does not match what is actually hung.
4) Can this Corbin Russwin electrified mortise lock go on a 3-hour fire door?
Yes. The ML20914 is UL and cUL listed to UL10C positive pressure and rated for fire doors up to and including 3 hours, to 4 ft x 10 ft single or 8 ft x 10 ft pair. It is also ANSI/BHMA A156.13 Series 1000 Operational and Security Grade 1 and meets ADA A117.1, plus California State Fire Marshal and windstorm/hurricane certification.
5) Will the ML20914 latch into the ANSI strike already cut into my frame?
It 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. The latchbolt is a two-piece anti-friction unit with a 3/4 inch (19mm) throw, the auxiliary deadlatch has a 9/16 inch effective throw, and the deadbolt throws 1 inch. If your frame already has a standard 4-7/8 inch ANSI mortise strike prep with that lip-to-center, it drops in; a 1 inch lip-to-center or a T-strike frame needs the strike swapped.
6) Can I use my building's existing Corbin Russwin keys with this lockset, or do I need a separate cylinder brand?
It works on new or existing Corbin Russwin key systems and will also accept most other manufacturers' cylinders. Standard cylinder is brass, 6-pin L4 keyway, 0-bitted. When ordering you choose IC 6-pin cylinder with L4 keyway, IC 6-pin less core (for keying your own cores), conventional L4 keyway, or less cylinder if you are supplying the cylinder yourself.
7) Does the ML20914 offer request-to-exit monitoring for an access control system?
Yes, request-to-exit monitoring is an option you select when ordering, with or without. Specify RX if your access control panel needs to see a legitimate inside egress so it does not report a forced door. The lock itself is a single-cylinder both-grips-lock function and supports Fail Safe or Fail Secure operation for access control integration.
8) What is the closest cross-brand equivalent to the Corbin Russwin ML20914 electrified mortise lockset for an access-control opening?
The closest match from another manufacturer is the Schlage L9092EU electric lock/unlock outside lever mortise lock, keyed outside with request-to-exit and 12/24VDC operation, built for 1-3/4 inch doors in a heavy duty corridor function. Like the ML20914, it is an electrified mortise lock body with RX monitoring, and the ML20914 is likewise built for a 1-3/4 inch door with request-to-exit monitoring offered as an ordering option. The Corbin Russwin is configured Fail Safe or Fail Secure at the point of order; the Schlage is an electrically unlocked outside lever model.
9) If the opening does not need electrification, what mortise lock can be used instead of the ML20914?
For a purely mechanical opening, the Accentra 8805FL is a Grade 1 storeroom mortise lock in the 8800 Series with an Arcadia lever, and the Cal-Royal NM8080 is a Grade 1 storeroom mortise lockset for 1-3/4 inch doors with an interchangeable core option. Both cover keyed entry without any wiring, where the Corbin Russwin ML20914 is ordered as a Fail Safe or Fail Secure electrified lockset for connection to an access control system.
10) What should I use instead of the ML20914 if I want credentials at the door rather than a wired access control panel?
Standalone and wireless mortise locks handle the credential at the door. The BEST 45HZ EZ Series is an electronic keypad mortise lock with key override, the Alarm Lock DL3500CR is a Grade 1 electronic mortise lock with 300 user codes in classroom function, and 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 Corbin Russwin ML20914 carries no reader of its own; it is a Fail Safe or Fail Secure electrified lock body driven by the access control system.
11) What trim and finishes do I need to specify to match the other doors in my building?
The lever is the NS Newport cast design. Rose and escutcheon options are A rose, B rose, or M, N and R escutcheons, and all trim is thru-bolted for alignment and added security. Finishes are 612 satin bronze, 613 satin bronze oil-rubbed, 626 satin chrome, and 630 satin stainless steel. 626 and 630 are the usual commercial matches for existing corridor hardware.
12) Is an electrified mortise lock like the ML20914 the right choice, or should I use a standalone keypad or credential lock?
Go electrified mortise like the ML20914 when the opening is wired back to an access control panel and you want the lever controlled by the system, with optional RX monitoring. If there is no wiring to the door and no head-end, a standalone battery lock is the simpler install: ZenSupply carries the Schlage CO-100 standalone electronic mortise lock and the TownSteel FME-2000 Grade 1 mortise lockset with RFID. If you want networked control without pulling wire, the Alarm Lock DL1300NW Trilogy Networx wireless mortise lock is the wireless route.
13) How durable is the ML20914 for a high-traffic entrance, and what is the lock body made of?
The lockcase is heavy-gauge steel measuring 5-7/8 x 4 x 15/16 inches with a wrought brass, bronze or stainless armored front at 8 x 1-1/4 inches. Cycle testing is verified at 14.5 million cycles, well past the ANSI/BHMA Grade 1 requirement, and the deadbolt is one-piece stainless with a 1 inch throw. That is the spec set for abusive commercial traffic such as school corridors, hospitals and government entries.
14) If I do not need an electrified lock on this opening, what mechanical Grade 1 mortise lock should I use instead?
Drop to a mechanical lockbody and save the wiring. For a keyed store room, the Accentra 8805FL Grade 1 storeroom mortise with Arcadia lever or the Cal-Royal NM8080 Grade 1 storeroom mortise are direct options. For a classroom, the Cal-Royal NM8070 Grade 1 classroom mortise. For office or entrance duty, the Cal-Royal NM8050 Grade 1 office/entrance mortise with auxiliary deadlatch. All three Cal-Royal models are listed for 1-3/4 inch doors, the same thickness the ML20914 is built around.
15) Does the ML20914 support electric latch retraction for a card reader entry that needs the latch pulled back?
Motorized Electric Latch Retraction (MELR) is available on the ML20900 series, which is the electrified family the ML20914 belongs to. MELR retracts the latch itself rather than just releasing the lever, which is what you want when the door is also on an automatic operator or held in a push-pull condition. Specify MELR at order time; it is not a field add-on.
16) Is the BEST 45HW a direct substitute for the Corbin Russwin ML20914?
The BEST 45HW is a wired electromechanical mortise lock rated heavy duty with 12V/24V operation, so it fills the same electrified role, but it is a different lock body with its own trim and keying program. The Corbin Russwin ML20914 is an ML2000 Series mortise lockset with a 2-3/4 inch backset, a 3/4 inch latchbolt, and an ANSI straight lip strike with 1-1/8 inch lip to center, and it accepts Corbin Russwin L4 keyway or interchangeable 6-pin core cylinders. Confirm strike prep and keyway before treating the two as interchangeable.
17) What is the difference between the Corbin Russwin ML20914 and the Command Access ML190 motorized mortise lock?
The Command Access ML190 Series is a heavy-duty motorized mortise lock in storeroom function with field selectable EL/EU operation on 24VDC, so the fail safe or fail secure behavior is set at the door. On the Corbin Russwin ML20914 the Fail Safe or Fail Secure configuration is chosen when the lockset is ordered, and it is offered with or without request-to-exit monitoring.
18) Which mortise locks look like alternatives to the ML20914 but will not work on an access-controlled opening?
Several mortise products in the same size family are not electrified at all. The Falcon MA101 is a Grade 1 heavy duty mortise passage lock, the Schlage PM010 is a Grade 1 passage latch mortise lock for 1-3/4 inch doors, the Hager 3840S is a Grade 1 privacy mortise lock with a 2-3/4 inch backset, and the Schlage L0170 is a Grade 1 half dummy trim. None of them take a control signal, while the Corbin Russwin ML20914 is a Fail Safe or Fail Secure electrified lockset intended for access control.
19) For a behavioral health or ligature-resistant opening, is the ML20914 the right mortise lock?
For ligature-resistant openings the TownSteel MRX-L-01 is a Grade 1 heavy duty anti-ligature lever mortise lockset in passage function for 1-3/4 inch doors, the MRX-A-01 is the same duty level with arch trim, and the Marks USA 5PDN is a Grade 1 hospital passage push/pull paddleset. The Corbin Russwin ML20914 is supplied with the Newport cast lever and is an electrified keyed lockset, so it suits controlled entries rather than patient-side doors needing ligature-resistant trim.
20) We need classroom-security lockdown rather than remote release. What replaces the ML20914?
For lockdown-focused classroom doors, the Cal-Royal NM8070 is a Grade 1 classroom mortise lockset for 1-3/4 inch doors with an auxiliary deadlatch, the Marks USA LA318GJ is a Grade 1 classroom security indicator mortise lockset with an ANSI strike for 1-3/4 inch doors, and the TownSteel FME-4000 is a Grade 1 heavy duty electronic intruder classroom mortise lockset with RFID. The Corbin Russwin ML20914 is a Fail Safe or Fail Secure electrified lockset released by the access control system instead.
21) Will a Baldwin 6310 mortise lock body drop into the same prep as the Corbin Russwin ML20914?
No. The Baldwin 6310 entrance/storeroom mortise lock body uses a 2-1/2 inch backset, and the Corbin Russwin ML20914 uses a 2-3/4 inch backset with an ANSI straight lip strike at 1-1/8 inch lip to center. The backset difference alone means different door prep, so the two are not interchangeable in an existing mortise pocket.
22) Is the Dormakaba E-Plex E5086 an alternative to the ML20914 for a back-to-back controlled entry?
The Dormakaba E-Plex E5086 is a Grade 1 entry/egress electronic pushbutton and card mortise lock with back-to-back credential readers, so both sides are managed at the door itself. The Corbin Russwin ML20914 is a single-cylinder lockset with both grips locked, ordered Fail Safe or Fail Secure and optionally with request-to-exit monitoring, and relies on a separate access control system for credentials.
23) Is the Schlage LE Series mobile-enabled mortise lock the same grade as the Corbin Russwin ML20914?
No. The Schlage LEBMB-ADD mobile-enabled mortise lock is BHMA Grade 2 with a 3 hour fire rating and privacy, office and apartment functions, while the Schlage LEMD-GRW ENGAGE wireless mortise lock is Grade 1 with a 3 hour fire rating. The Corbin Russwin ML20914 is an ANSI/BHMA A156.13 Series 1000 Grade 1 mortise lock rated for fire doors up to 3 hours.
24) For a hotel or dormitory guest door, should I specify the ML20914 or something else?
Guest-room openings often go to a standalone RFID lock such as the Dormakaba Saffire LX-I-M002, an electronic RFID mortise lockset with BLE mobile access at BHMA Grade 2, or the TownSteel FME-2000, a Grade 1 heavy duty RFID mortise lockset for 1-3/4 inch doors. The Corbin Russwin ML20914 is a Grade 1 electrified mortise lockset for wired access control, ordered Fail Safe or Fail Secure, which suits perimeter and controlled corridor doors.
25) Can I standardize one Corbin Russwin mortise lockbody across a facility and change functions later?
Yes. The ML2000 platform gives 12 functions configurable from a single ML2054 lockbody, so a facility can stock one body and set the function it needs per door. Trim also spans a wide range including Museo, Vineyard and Behavioral Health (BHSS/BLSS) designs, and status indicator options are available on sectional and escutcheon trim for locked/unlocked visibility.
26) Can I use a Sargent 4874 deadbolt or an Ilco 185 mortise deadbolt in place of the ML20914?
Only if the opening needs a deadbolt alone. 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; neither carries a latch or lever trim. The Corbin Russwin ML20914 is a full lever lockset with a 3/4 inch latchbolt and Newport cast lever trim, electrified for Fail Safe or Fail Secure operation.
27) Which mortise alternatives are limited to thinner doors than the ML20914?
The Alarm Lock Trilogy electronic mortise locks list a 1-5/8 inch to 1-7/8 inch door thickness range, covering the DL2700CR and DL3500CR classroom models and the DL4500 electronic mortise deadbolt. The Corbin Russwin ML20914 is built for a 1-3/4 inch door, which falls inside that band, so door thickness is not usually the deciding factor between them; function and credential handling are.
28) We stock BEST 45H lock bodies. How does the ML20914 differ from those?
The BEST 45H Series is a heavy duty mortise lock body in public entrance function with field reversible operation, and the 45HCA intruder-function body is also heavy duty. Those are mechanical bodies. The Corbin Russwin ML20914 is field reversible as well, but it is an electrified ML2000 Series lockset ordered Fail Safe or Fail Secure with optional request-to-exit monitoring, supplied with the Newport cast lever.
How fast can I get the Corbin Russwin ML20914-NSA-626-SAF 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 Corbin Russwin ML20914-NSA-626-SAF come with a warranty?
Absolutely. The Corbin Russwin ML20914-NSA-626-SAF 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 Corbin Russwin ML20914-NSA-626-SAF?
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 Corbin Russwin ML20914-NSA-626-SAF from ZenSupply?
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