Corbin Russwin ML20907 Grade 1...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,838.27
$1,077.40
Corbin Russwin ML20907 No Cylinder Mortise Electrified Lever Lockset, AS-Armstrong Lever

Corbin Russwin ML20907 Grade 1 No Cylinder Mortise Electrified Lever Lockset, AS-Armstrong Lever

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Model: ML20907-ASA-626-SAF
From the ML2000 Series Collection
$1,838.27
$1,077.40
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$1,838.27
$1,077.40
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Corbin Russwin ML20907-AS No Cylinder Mortise Electrified Lever Lockset with Armstrong Lever, Fail Safe/Fail Secure, ANSI/BHMA Grade 1

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

The Corbin Russwin ML20907-AS No Cylinder Mortise Electrified Lever Lockset with Armstrong Lever is part of the ML2000 Series, engineered to meet the rigors of high-traffic, abusive environments. Certified to ANSI/BHMA A156.13 Series 1000 Operational and Security Grade 1, this electrified mortise lockset supports both Fail Safe (SAF) and Fail Secure (SEC) configurations, making it adaptable to a wide range of access control applications. 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" (with a minimum of 2-3/8"), it features a 3/4" latchbolt throw and is compatible with wood, hollow metal, and bullet-resistant doors. UL listed, UL10c compliant, and ULC listed, this lockset also carries ADA compliance and a 3-hour fire door rating, delivering comprehensive certification coverage for commercial installations.

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
  • 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 constructed of heavy-gauge steel and certified to ANSI/BHMA A156.13 Series 1000 Operational and Security Grade 1, far exceeding standard durability requirements for high-traffic commercial environments. The ML20907-AS is backed by a ten-year mechanical warranty, a five-year MELR warranty, and a two-year electrical warranty, along with UL listing, UL10c compliance, ADA compliance, and a 3-hour fire door rating. With EcoFlex® technology delivering up to 89% energy savings and Motorized Electric Latch Retraction retracting the latchbolt in ½ second, this lockset is engineered for demanding commercial applications where dependable, energy-efficient performance is 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:
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 ML20907-ASA-626-SAF – Frequently Asked Questions

1) Does the Corbin Russwin ML20907 come with a cylinder, or do I have to order one separately?
No cylinder is supplied with the ML20907 mortise electrified lockset, so you need to add one. The ML2000 Series lock will work with new or existing Corbin Russwin key systems and accepts most other manufacturers' cylinders, so if the building is already keyed you can carry the existing keyway across instead of introducing a second system. The Corbin Russwin standard cylinder reference is a brass 6-pin L4 keyway, 0-bitted.
2) Should I order the ML20907 as fail safe or fail secure?
Both are orderable, and the choice is about what the door has to do when power drops. Fail safe (SAF) unlocks on power loss, which is what you want on an egress or stair door that must release when the access control system or building power goes down. Fail secure (SEC) stays locked on power loss, the usual pick for a storeroom, IT room, or perimeter opening where security has to hold through an outage. The same ML20907 lock body covers both, so it's a selection you make at order time, not a different lock.
3) Will the ML20907 mortise lock fit my 1-3/4 inch metal door with a 2-3/4 inch backset?
That is exactly the standard prep for it. The ML20907 is built for 1-3/4 inch doors on a 2-3/4 inch backset, with a minimum backset of 2-3/8 inches and optional door thicknesses from 1-3/8 inches up to 4 inches. It works in wood, hollow metal, and bullet-resistant doors. The heavy-gauge steel lockcase measures 5-7/8 x 4 x 15/16 inches and the armored front is 8 x 1-1/4 inches, so it drops into a standard ANSI mortise pocket.
4) Do I need to know the door hand before ordering this Corbin Russwin electrified mortise lock?
The lock ships handed, but you can change it in the field. The ML2000 latchbolt is a patented quick reversible design, so handing is reversed without opening up the lock case. For a property manager stocking spares across a building, that means one lock covers left and right hand openings.
5) Can I reuse the existing strike, or will the ML20907 need a new one?
The lock is supplied to an 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 deadlocking auxiliary latch. If your frame already has a standard ANSI 4-7/8 inch strike prep at the same lip-to-center dimension, the latch will engage it. If the existing strike is a non-ANSI or shallow-lip type, plan on using the supplied ANSI strike and adjusting the frame prep.
6) Can the ML20907 electrified mortise lock go on a 3-hour fire rated door?
Yes. The ML2000 mortise lock is UL/cUL listed and UL10C positive pressure compliant, rated for 3-hour fire doors up to 4 ft x 10 ft single or 8 ft x 10 ft pair. It's also certified to ANSI/BHMA A156.13 Series 1000 Operational and Security Grade 1, ADA A117.1 compliant, California State Fire Marshal accepted, and windstorm/hurricane certified.
7) What is request to exit (RX) monitoring on this lock and do I need it?
Request to exit is an internal switch that signals the access control panel when someone turns the inside lever to leave, so the panel can shunt the door alarm instead of reporting a forced opening. The ML20907 is orderable with or without RX. Take the RX version on any monitored or alarmed opening, or where the egress event needs to be logged; skip it on a simple electrified opening with no monitoring. It has to be specified at order time.
8) What is the closest cross-brand equivalent to the Corbin Russwin ML20907 electrified mortise lockset for an access control opening?
The Schlage L9092EU with 03A trim is the nearest match: it is a heavy duty mortise lock with an electrically controlled outside lever, keyed outside, request to exit switching, and 12/24VDC operation on a 1-3/4 inch door. The ML20907 is an ANSI/BHMA Grade 1 ML2000 mortise electrified lever lockset supplied with no cylinder, ordered Fail Safe or Fail Secure with or without request to exit monitoring, 2-3/4 inch backset, 3/4 inch latchbolt, on a 1-3/4 inch door. The Schlage arrives keyed, while the ML20907 lets you fit your own cylinder.
9) We want keypad access at the door instead of running wire. What standalone mortise lock replaces an electrified ML20907?
Standalone options avoid the wiring run entirely. The Alarm Lock DL3500CR Trilogy is a Grade 1 electronic mortise lock with 300 user codes and classroom function for 1-5/8 to 1-7/8 inch doors, and the BEST 45HZ EZ Series is an electronic keypad mortise lock with key override. The Corbin Russwin ML20907 instead takes its command from an access control system as a Fail Safe or Fail Secure electrified lockset and mounts on a 1-3/4 inch door.
10) The opening does not need to be electrified. What mechanical mortise lock covers the same door?
If no access control is involved, mechanical Grade 1 mortise locksets on 1-3/4 inch doors include the Cal-Royal NM8080 storeroom with interchangeable core option, the Cal-Royal NM8050 office/entrance with auxiliary deadlatch, and the Accentra 8805FL Grade 1 storeroom in the 8800 Series. The Corbin Russwin ML20907 is the electrified version of the mortise format, ordered Fail Safe or Fail Secure, and requires power at the door.
11) What trim and finish choices do I have to pick when ordering the ML20907-AS?
Four things get specified: lever style, trim type, finish, and function. The AS version uses the cast Armstrong lever. Trim comes as A rose, B rose, M escutcheon, or N escutcheon. Finish is 625 bright chrome or 626 satin chrome. Function is fail safe or fail secure, each available with or without RX monitoring. Trims are thru-bolted for alignment and security, and status indicator options for locked/unlocked visibility are offered on sectional and escutcheon trim.
12) How durable is this mortise lock for a high traffic entrance?
Cycle testing puts it well past the A156.13 minimum: 14.5 million cycles verified under UL (Verification ID V875753), with a heavy-gauge steel lockcase and a one-piece stainless steel deadbolt with a 1 inch throw. The two-piece anti-friction latchbolt also needs less force to close, which matters on a door with a closer that has drifted out of adjustment. That combination is why it gets specified on school corridors, healthcare, and high-volume office entrances.
13) What is the difference between this electrified Corbin Russwin mortise lock and an electronic keypad or card reader mortise lock?
The ML20907 has no reader or credential of its own. It is a wired electrified lock body that a separate access control system energizes, which is what you want when card readers, panels, and monitoring are already being installed. If you need the credential in the lock itself, that is a different product class: the Dormakaba E-Plex E5086 is a pushbutton and card lock, the TownSteel FME-2000 Series is a Grade 1 RFID classroom mortise lockset, and the Schlage LEMD-GRW is a Grade 1 wireless mortise lock with a 125kHz proximity reader. Standalone keypad options include the Alarm Lock DL3500CR.
14) What is the closest electrified mortise lock alternative if I can't use the Corbin Russwin?
Two comparable wired electrified mortise locks: the Schlage L9092EU with 03A trim is a heavy duty corridor-function electric lock, keyed outside, with request to exit and 12/24VDC operation for 1-3/4 inch doors, and the BEST 45HW Series is a heavy duty wired electromechanical mortise lock running 12V or 24V. The Command Access ML190 Series is a motorized mortise lock with field selectable EL/EU operation on 24VDC, which lets you decide fail safe versus fail secure in the field rather than at order.
15) Can I standardize a whole building on the ML2000 lock body and change functions later?
That is the point of the series. Twelve functions are configurable from one ML2054 lockbody, so an MRO or facilities stock room can hold a common body and set the opening's function at install rather than carrying a dozen part numbers. Trim runs from standard Armstrong through Museo, Vineyard, and Behavioral Health (BHSS/BLSS) designs, so the aesthetic can vary by wing while the lock body stays the same.
16) Where does the cylinder and thumbturn sit relative to the lever on the ML2000 mortise lock?
Center to center from the knob or lever to the cylinder is 3-5/8 inches (92mm), and lever to thumbturn is 2-7/16 inches (62mm). Those are the numbers to check against an existing escutcheon or door face prep if you are swapping into a door that was previously prepped for another brand's mortise lock, since a mismatch there means a new door face cut even though the mortise pocket itself may be fine.
17) Is the BEST 45HW a substitute for the Corbin Russwin ML20907?
The BEST 45HW is a wired electromechanical mortise lock in heavy duty construction with 12V/24V operation, so it covers the same wired access control role. The ML20907 differs in that it is supplied with no cylinder, comes with the cast Armstrong lever in 625 bright chrome or 626 satin chrome, and is offered with A or B rose or M or N escutcheon trim. Trim style, keyway plans and wiring gauge should be matched before treating the two as interchangeable.
18) What credential-reading mortise lock should I look at instead of a wired electrified lockset?
For card or mobile credentials at the door, the Schlage LEMD-GRW is a Grade 1 ENGAGE wireless mortise lock with a 125kHz proximity reader and mobile enabled deadbolt with LED, 3 hour fire rating, and the TownSteel FME-2000 is a Grade 1 heavy duty classroom mortise lockset with RFID on a 1-3/4 inch door. The Corbin Russwin ML20907 carries no reader of its own; it is an electrified Grade 1 mortise lockset controlled by a separate access system.
19) Which mortise products look like alternatives to the ML20907 but will not control an access opening?
Several mortise items are not locking alternatives. The Schlage L0170 is half dummy trim, a Grade 1 non-keyed mortise dummy lever with no latch action, and the Emtek 3102 Memphis and 3104 Hamilton are dummy function mortise entrance locksets. The Sargent 130KB and 130W are mortise thumbturns only. The Corbin Russwin ML20907 is a full Grade 1 electrified mortise lockset with a 3/4 inch latchbolt and ANSI straight lip strike.
20) Does the Dormakaba E-Plex E5086 do the same job as a Corbin Russwin ML20907?
The Dormakaba E-Plex E5086 is a Grade 1 entry/egress electronic pushbutton and card mortise lock in a back to back configuration, so credentials are presented at the lock itself. The Corbin Russwin ML20907 is a Grade 1 electrified mortise lockset with no onboard reader, ordered Fail Safe or Fail Secure and optionally with request to exit monitoring, so it relies on a head-end access control system and power at the frame.
21) I only need a mechanical mortise lock, not an electrified one. What should I look at instead?
If there's no access control at the opening, an electrified body just adds wiring you don't need. Mechanical Grade 1 mortise options include the Cal-Royal NM8080 storeroom and NM8070 classroom locksets for 1-3/4 inch doors, the Accentra 8805FL Grade 1 storeroom lock with Arcadia lever, and the Sargent 7925 Grade 1 dormitory exit function lock with rose trim and a single cylinder deadbolt. For a non-keyed opening, the Falcon MA101 is a Grade 1 heavy duty mortise passage lock with field reversible operation.
22) Will this Corbin Russwin mortise lock work on a behavioral health or patient room door?
The ML2000 platform is used in healthcare and behavioral health facilities, and Corbin Russwin offers Behavioral Health trim (BHSS/BLSS) within the series trim range, so the lock body can be paired with ligature-resistant style trim rather than the standard Armstrong lever. If the specification calls for a push/pull or anti-ligature mechanical set instead, the Marks USA 5PDN is a Grade 1 hospital passage push/pull paddleset in satin stainless, and the TownSteel MRX-L-01 is a Grade 1 anti-ligature lever mortise passage lockset for 1-3/4 inch doors.
How fast can I get the Corbin Russwin ML20907-ASA-626-SAF delivered?
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Does the Corbin Russwin ML20907-ASA-626-SAF come with a warranty?
Absolutely. The Corbin Russwin ML20907-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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