Corbin Russwin ML20907 Grade 1...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,539.04
$901.88
Corbin Russwin ML20907 No Cylinder Mortise Electrified Lever Lockset, RW-Regis (Wrought) Lever

Corbin Russwin ML20907 Grade 1 No Cylinder Mortise Electrified Lever Lockset, RW-Regis (Wrought) Lever

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Model: ML20907-RWA-626-SAF
From the ML2000 Series Collection
$1,539.04
$901.88
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Corbin Russwin ML20907-RW ML2000 Series Mortise Electrified Lever Lockset with RW Regis Wrought Lever, Fail Safe/Fail Secure, ANSI/BHMA Grade 1

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

The Corbin Russwin ML20907-RW is a heavy-duty electrified mortise lever lockset from the ML2000 Series, engineered to meet the rigors of high-traffic and abusive commercial environments. Built on a heavy-gauge steel substrate and certified to ANSI/BHMA A156.13 Series 1000 Operational and Security Grade 1, this lockset features the RW Regis (Wrought) lever design and supports Fail Safe/Fail Secure operation for flexible access control integration. With a standard door thickness of 1-3/4" (accommodating doors from 1-3/8" to 4" thick), a standard backset of 2-3/4" (range: 2-3/8" to 2-3/4"), and a 3/4" latchbolt throw, this lockset is designed for wood, hollow metal, and bullet-resistant doors. EcoFlex® technology delivers up to 89% energy savings on all electromechanical functions, while Motorized Electric Latch Retraction (MELR) retracts the latchbolt in ½ second with applied power for swift access control.

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
  • Educational Facilities
  • Government and Municipal Buildings
  • Retail Establishments
  • Industrial and Warehouse Facilities
  • Multi-Tenant Residential 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, with UL listing, UL10C compliance, and fire door ratings up to 3-hours ensuring dependable performance in the most demanding commercial environments. The ML20907-RW is backed by a ten-year mechanical warranty, five-year MELR warranty, and two-year electrical warranty, reflecting Corbin Russwin's commitment to long-term reliability. With EcoFlex® technology delivering up to 89% energy savings and direct drive performance engineered to eliminate lever sag, this lockset is purpose-built for high-traffic applications where consistent, professional-grade security 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-RWA-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 ships with the ML20907 electrified mortise lockset, so you supply the cylinder. It can be keyed into a new or existing Corbin Russwin key system, and it accepts most other manufacturers' cylinders, so an existing masterkey system on the building can carry over. The standard ML2000 cylinder spec is brass, 6-pin L4 keyway, 0-bitted, if you want to match factory.
2) Should I order the ML20907 fail safe or fail secure?
Both are orderable on the ML20907. Fail safe unlocks the outside lever when power is lost, which is what you want on a stair or egress-related opening where people have to get back in during an alarm. Fail secure keeps the outside lever locked with no power, which is the usual choice for a secured perimeter or storeroom door where losing power should not leave the room open. Fire doors and local code drive this decision, so match it to the door schedule before you pick.
3) Will the ML20907 mortise lock fit a 1-3/4 inch door with a 2-3/4 inch backset?
Yes, that is the standard configuration: 1-3/4 inch door thickness and a 2-3/4 inch backset, which is the normal commercial prep. The lockcase is heavy-gauge steel at 5-7/8 x 4 x 15/16 inches, and doors from 1-3/8 up to 4 inches thick can be accommodated with optional thickness. It is built for wood, hollow metal, and bullet-resistant doors.
4) Do I have to specify handing on this Corbin Russwin electrified mortise lock?
The lock is handed as shipped, but the latchbolt is field reversible. Corbin Russwin's Quick Reversible latch lets you re-hand it without opening the lock case, so a lock that arrives the wrong hand can be corrected on the job instead of returned. Trim orientation still needs to suit the opening.
5) Will the ML20907 latch into the strike already in my frame?
The latchbolt is a two-piece anti-friction design with a 3/4 inch throw, and the supplied strike is an ANSI straight lip, 4-7/8 x 1-1/4 inches with 1-1/8 inch lip to center. If your frame already has a standard ANSI 4-7/8 inch mortise strike prep, it drops in; if the existing lip-to-center is different, use the strike that comes with the lock so the lip clears the stop. There is also a deadlocking auxiliary latch with 9/16 inch effective throw and a 1 inch stainless deadbolt.
6) Can this electrified mortise lockset go on a fire rated door?
Yes. The ML2000 mortise lock is UL/cUL listed and UL10C positive pressure rated, good for 3-hour fire doors up to 4 by 10 feet single or 8 by 10 feet pair. It also carries ANSI/BHMA A156.13 Series 1000 Operational and Security Grade 1, ADA A117.1, California State Fire Marshal, and windstorm/hurricane certification. Note that on a fire door the fail safe/fail secure choice is restricted by code, so confirm the authority having jurisdiction allows fail safe on that opening.
7) How is this different from an electronic keypad or card-reader mortise lock?
The ML20907 is a wired electrified lock: it has no reader, no keypad, and no onboard credential memory, so it needs a panel, a power supply, and an electric hinge or door loop to work. That is the right choice when the building already runs access control. If you want a standalone opening with credentials at the door instead, a battery or reader lock like the TownSteel FME-2000 Grade 1 classroom mortise lock with RFID, the Schlage CO-100 standalone electronic mortise lock, or the Alarm Lock DL3500CR Trilogy Grade 1 classroom keypad mortise lock does the job without a head-end system.
8) What is the closest wired electrified mortise lock to the Corbin Russwin ML20907 from another manufacturer?
The Schlage L9092EU with 03A trim is the nearest cross-brand equivalent: it is a heavy duty electric lock/unlock outside lever mortise lock, keyed outside, with request to exit monitoring and 12/24VDC operation for a 1-3/4 inch door. The ML20907 matches on the essentials - 1-3/4 inch door, 2-3/4 inch backset, fail safe or fail secure electrification, and request to exit monitoring as an option - and ships without a cylinder so you can fit your own Corbin Russwin or other manufacturer core. Another wired option is the BEST 45HW electromechanical mortise lock, also 12V/24V.
9) If the opening has no power and no access control, what mechanical mortise lock should I use instead of the ML20907?
Go to a keyed mechanical mortise lock in the function the opening needs. The Accentra 8805FL is a Grade 1 storeroom mortise lock in the 8800 Series, and Cal-Royal offers Grade 1 heavy duty mortise locksets for 1-3/4 inch doors in storeroom (NM8080), classroom (NM8070), office/entrance (NM8050), and privacy (NM8440). The ML20907 is an electrified lockset wired for fail safe or fail secure operation, so it only earns its cost where a card reader or access control system is controlling the door.
10) Can I use a standalone keypad or RFID mortise lock in place of the Corbin Russwin ML20907?
Only if the door does not need to be controlled from a central access system. Standalone options include the Alarm Lock DL3500CR Trilogy Grade 1 classroom mortise lock with 300 user codes, the BEST 45HZ EZ Series electronic keypad mortise lock with key override, the TownSteel FME-2000 Grade 1 RFID mortise lockset for 1-3/4 inch doors, and the Dormakaba E-Plex E5086 Grade 1 pushbutton/card mortise lock. Those carry their credentials at the door. The ML20907 has no reader of its own - it is a Grade 1 electrified lockset that takes fail safe or fail secure power from your access control system, with optional request to exit monitoring, and ships with no cylinder so you supply the core.
11) What does the Request to Exit option add, and do I need it?
Request to exit (RX) puts a switch in the lock that signals the access control panel whenever the inside lever is turned. You need it when the system has to know a legitimate egress happened, so a monitored door does not report a forced-open alarm every time someone walks out. The ML20907 is orderable with or without RX. If your panel only needs to lock and unlock and nothing monitors the door, skip it.
12) What finishes and trim can I get the ML20907 Regis lever in?
The Regis wrought (RW) lever comes in 626 satin chrome and 630 satin stainless steel, and you choose between A rose trim or M and N escutcheon trim. Escutcheon is the choice when you are covering an older or oversized prep or want the taller plate look on an institutional corridor; rose is the cleaner minimum-coverage option. Trim is thru-bolted on ML2000 designs for alignment and pull-off resistance.
13) Is this lock durable enough for a school or hospital corridor door?
Built for it. The ML2000 uses a heavy-gauge steel lockcase and is certified to ANSI/BHMA A156.13 Series 1000 Operational and Security Grade 1, with UL cycle testing verified at 14.5 million cycles. The direct drive design is engineered to prevent lever sag, which is the usual failure on high-traffic lever openings. Typical applications are offices, healthcare, education, government, retail, industrial, and multi-tenant residential.
14) Can I standardize a whole building on the ML2000 mortise lock even though the doors need different functions?
Yes, and that is a big part of why facilities spec the series. Twelve functions are configurable from a single ML2054 lockbody, so storeroom, office, classroom, and electrified openings share one body with different trim and cylinder arrangements. That cuts what you stock as spares and keeps the prep identical across the building. Status indicator trim for locked/unlocked visibility is available on both sectional and escutcheon trim if some openings need it.
15) What are the center-to-center dimensions for laying out the door prep on an ML2000 mortise lock?
Lever to cylinder is 3-5/8 inches center to center, and lever to thumbturn is 2-7/16 inches. The armored front is 8 by 1-1/4 inches in wrought brass, bronze, or stainless. Pair those with the 2-3/4 inch backset and the 5-7/8 x 4 x 15/16 inch case pocket when you cut a new door or verify an existing prep.
16) Is a wireless mortise lock like the Schlage ENGAGE LEMD an equivalent to the ML20907?
They solve the same access control problem by different means. The Schlage LEMD-GRW is a Grade 1 ENGAGE Series wireless mortise lock with a 125kHz proximity reader and mobile-enabled deadbolt with LED, 3 hour fire rating, Greenwich trim, right hand - it communicates wirelessly and carries its own reader. The ML20907 is a hard-wired electrified lockset: it needs power transfer to the door and a panel or reader on the system side, and it is field reversible with the quick reversible latchbolt so handing is set on site rather than ordered. Note the Schlage LE Series LEBMB mobile-enabled mortise lock is Grade 2, a step below the ML20907's Grade 1.
17) Which mortise products look like substitutes for the ML20907 but are not?
Several items in the mortise family will not do the job. Mortise thumbturns such as the Sargent 130KB and 130W are trim pieces only. Dummy sets like the Schlage L0170 half dummy trim and the Emtek 3102 Memphis mortise entrance dummy have no latch operation at all. Bare lockbodies such as the BEST 45HCA public entrance and intruder bodies come without trim. Mortise deadbolts - the Sargent 4874 double cylinder and the Kaba Ilco 185 Series - latch nothing. And passage functions like the Schlage PM010, Hager 3810S, and Falcon MA101 are non-keyed and never locked. The ML20907 is a complete electrified lever lockset with lever trim, a 3/4 inch latchbolt, and an ANSI straight lip strike.
18) My doors are 1-5/8 to 1-7/8 inch - does the Corbin Russwin ML20907 fit, or do I need a different lock?
The ML20907 is built for a 1-3/4 inch door as standard, with optional thicknesses covering 1-3/8 inch to 4 inch, so 1-5/8 to 1-7/8 inch falls inside that span. If you prefer a lock whose published range is exactly that, the Alarm Lock Trilogy mortise locks list 1-5/8 inch to 1-7/8 inch - the DL2700CR classroom weatherproof model, the DL3500CR Grade 1 classroom model, and the DL4500 Grade 1 electronic mortise deadbolt. Those are standalone keypad locks rather than system-wired electrified locksets.
19) For a behavioral health room, is the ML20907 the right choice or should I look at a ligature-resistant mortise lockset?
Both paths exist. The ML20907 offers Behavioral Health trim options (BHSS/BLSS) within its trim range, so a Grade 1 electrified mortise lock can be specified for those rooms. If the opening needs a purpose-built anti-ligature set instead, 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, the MRX-A-01 is the arch trim version, and the Marks USA 5PDN is a Grade 1 hospital passage mortise push/pull paddleset that is ligature resistant and ADA compliant in satin stainless steel. Those three are passage function and mechanical, not electrified.
20) I need a classroom security or intruder function instead of electrified access control - what replaces the ML20907?
For lockdown from inside the room, the Marks USA LA318GJ is a Grade 1 classroom security indicator mortise lockset for 1-3/4 inch doors with an ANSI strike and a steel escutcheon measuring 8-1/2 inch H x 2-3/4 inch W x 7/16 inch. The BEST 45HCA intruder lockbody offers an intruder function in a heavy duty body, and the TownSteel FME-4000 is a Grade 1 electronic intruder classroom mortise lockset with RFID for 1-3/4 inch doors. The ML20907 is configured as fail safe or fail secure for system-controlled locking, with status indicator options available on sectional and escutcheon trim if visible locked/unlocked feedback is what you are after.
21) Will a Grade 2 electronic mortise lock meet a spec calling for the Corbin Russwin ML20907?
Not if the spec is written to Grade 1. The ML20907 is certified to ANSI/BHMA A156.13 Series 1000 Operational and Security Grade 1. Among electronic mortise alternatives, the Dormakaba Saffire LX-I-M002 RFID lockset with BLE mobile access is BHMA Grade 2, and the Schlage LE Series LEBMB mobile-enabled mortise lock is Grade 2. Grade 1 electronic peers include the Dormakaba E-Plex E5086, the Schlage ENGAGE LEMD-GRW, and the TownSteel FME-2000.
22) Can I substitute a residential-style mortise lock body like the Baldwin 6301 or 6310 for the ML20907?
No - the backsets do not match. The Baldwin 6301 entry/apartment and 6310 entry/storeroom mortise lock bodies are 2-1/2 inch backset products, offered knob by knob or lever by lever, for doors 1-3/4 inch and over (6301) or 1-3/8 inch and over (6310). The ML20907 uses a 2-3/4 inch backset, so the door prep and the case pocket differ. It is also a commercial electrified lockset, where those Baldwin bodies are mechanical.
23) I have a narrow aluminum storefront door with an Adams Rite deadlatch - can I put the ML20907 on it?
No. The ML20907 is a heavy-gauge steel mortise lockset with a 5-7/8 inch x 4 inch x 15/16 inch case, intended for wood, hollow metal, and bullet-resistant doors. For an aluminum door already fitted with an Adams Rite deadlatch, the Alarm Lock DL1300NW Trilogy Networx wireless electronic mortise lock with keypad is built for Adams Rite deadlatches. Dormakaba's E-Plex 2066 is a wide stile electronic pushbutton keyless mortise lock, and the Kaba Ilco BR Series is a glass door bottom rail lock.
24) Is there a battery-powered alternative if I cannot run power to the door for the ML20907?
The Dormakaba PowerPlex P2066 Series mortise lock is the option to look at when pulling wire is not practical. The ML20907 requires power at the door as a wired electrified lockset, though its EcoFlex technology cuts consumption by up to 89 percent on all electromechanical functions, which eases the load on the power supply side. Other no-wire choices are standalone keypad locks such as the Alarm Lock DL2700CR Trilogy T2, a Grade 1 classroom mortise lock with weatherproof design.
25) Do I need Corbin Russwin cylinders if I standardize on the ML20907, or can I keep my existing keyway?
The ML20907 ships with no cylinder and accepts most other manufacturers' cylinders, so it can go onto a new or existing Corbin Russwin key system or keep whatever keyway your facility already runs. That is a different proposition from electronic locks that carry credentials at the door, such as the Accentra NTM623-NR nexTouch Generation 3 mortise lock with capacitive touchscreen keypad and cylinder override, or the BEST 45HZ EZ Series keypad mortise lock with key override, where the keypad is the primary credential.
26) How fast does the latch retract on the ML20900 series with MELR, and does it draw a lot of current?
With Motorized Electric Latch Retraction, the latchbolt pulls back in half a second once power is applied, which is quick enough for a card read at a busy lobby door. EcoFlex technology cuts consumption on the electromechanical functions by up to 89 percent, which matters when you are sizing a power supply across a run of doors rather than a single opening.
27) For a dormitory or corridor opening, how does the ML20907 compare with the Sargent 7925?
The Sargent 7925 is a Grade 1 heavy duty 7900 Series dormitory exit function mortise lock with rose trim and a single cylinder deadbolt - a mechanical corridor/dormitory function operated by key and thumbturn. The ML20907 covers the same opening electrically: fail safe or fail secure, request to exit monitoring optional, and available with rose (A) or escutcheon (M and N) trim in satin chrome 626 or satin stainless steel 630. It carries a one inch stainless steel deadbolt with a one inch throw in the case.
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Does the Corbin Russwin ML20907-RWA-626-SAF come with a warranty?
Absolutely. The Corbin Russwin ML20907-RWA-626-SAF is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
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