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 Grade 1 No Cylinder Mortise Electrified Lever Lockset, CS-Citation Lever

Corbin Russwin ML20907 Grade 1 No Cylinder Mortise Electrified Lever Lockset, CS-Citation Lever

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Model: ML20907-CSA-626-SAF
From the ML2000 Series Collection
$1,838.27
$1,077.40
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Selected Available Knob/Lever Style is
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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-CS ML2000 Series Mortise Electrified Lever Lockset with CS-Citation Lever, Fail Safe/Fail Secure, ANSI/BHMA Grade 1

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

The Corbin Russwin ML20907-CS is part of the ML2000 Series, an ANSI/BHMA A156.13 Series 1000 Operational and Security Grade 1 mortise electrified lever lockset featuring the CS-Citation lever design. Built from heavy-gauge steel and engineered for high-traffic, abusive environments, this lockset supports Fail Safe/Fail Secure operation and accommodates door thicknesses from 1-3/8" to 4" with a standard backset of 2-3/4". The unit is UL listed, UL10c compliant, UL-cUL listed for use on fire doors rated up to and including 3-hours, ADA compliant, and Florida Building Code Windstorm Certified, making it one of the most comprehensively certified mortise locksets available for 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 Behavioral Health 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 certified to ANSI/BHMA A156.13 Series 1000 Operational and Security Grade 1, with comprehensive listings including UL, UL10c, UL-cUL for 3-hour fire-rated doors, UL 294 for MELR, ADA compliance, ASTM E330 certification, and Florida Building Code Windstorm Certification. The ML20907-CS is backed by a ten-year mechanical warranty, five-year MELR warranty, and two-year electrical warranty, reflecting the brand's commitment to durability and long-term performance. Engineered with EcoFlex® technology for up to 89% energy savings and direct drive performance for consistent, reliable operation, this lockset is purpose-built for demanding commercial environments where security and dependability are non-negotiable.

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-CSA-626-SAF – Frequently Asked Questions

1) What is the difference between the Fail Safe and Fail Secure versions of the Corbin Russwin ML20907 mortise lockset?
Both are orderable on the ML20907. Fail safe unlocks the outside lever when power drops, which is what you want on a stair or egress path controlled by the fire alarm. Fail secure keeps the outside lever locked with no power, so a power loss does not leave the opening open; egress is still free from the inside lever. Pick the one your access control drawing and local AHJ call for, because the electrified function is built into the lock and is not changed in the field.
2) Will a Corbin Russwin ML20907 mortise lock fit a 1-3/4 inch door with a 2-3/4 inch backset prep?
Yes. The ML20907 uses a 2-3/4 inch backset and 1-3/4 inch is the standard door thickness, with optional thicknesses available. That is the normal commercial mortise prep, so it drops into an existing ANSI mortise pocket cut for a 2-3/4 backset.
3) Do I have to specify handing when ordering an ML20907 electrified mortise lockset?
The ML20907 is field reversible. The patented quick reversible latchbolt lets you re-hand it without opening the lock case, so a lock ordered for one hand can be turned around on site if the opening swings the other way.
4) Can this Corbin Russwin electrified mortise lock go on a 3-hour fire rated door?
Yes. The ML2000 Series mortise lock is UL/cUL listed and UL10C positive pressure compliant for fire doors rated up to and including 3 hours, covering single doors up to 4 ft x 10 ft and pairs up to 8 ft x 10 ft. It is also ADA compliant per A117.1 and Florida Building Code Windstorm certified.
5) Does the ML20907 come with a cylinder?
No. The ML20907 is the no-cylinder version, so you supply the mortise cylinder. It works with new or existing Corbin Russwin key systems and accepts most other manufacturers' cylinders, which matters if you are keying it into a building master system that is not Corbin Russwin.
6) What do I need to decide before ordering a Corbin Russwin ML20907-CS?
Four choices beyond the CS Citation cast lever: electrified function (fail safe or fail secure), whether you need request to exit monitoring, rose or escutcheon trim (A rose, B rose, M escutcheon or N escutcheon), and finish. Finishes are 605 bright brass, 613 satin bronze oil-rubbed, 625 bright chrome, 626 satin chrome and 630 satin stainless steel.
7) What should I use instead of the ML20907-CS if the door has no access control wiring?
Where there is no power to the frame, a standalone keypad mortise lock replaces the wiring run. The Alarm Lock DL3500CR is a Grade 1 electronic mortise lock with 300 user codes in classroom function for 1-5/8 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 a keypad reader, privacy function, for 1-3/4 inch doors. The ML20907-CS is a wired electrified lockset offered Fail Safe or Fail Secure, so it assumes an access control power supply at the opening.
8) What is the closest cross-brand equivalent to the Corbin Russwin ML20907-CS electrified mortise lockset?
The Schlage L9092EU with 03A lever trim is the nearest match: it is a heavy duty electrified mortise lock with an electrically controlled outside lever, keyed outside, request-to-exit monitoring, 12/24VDC operation, and a 1-3/4 inch door thickness. The ML20907-CS covers the same ground with Fail Safe and Fail Secure builds, a request-to-exit option, a 2-3/4 inch backset and the CS-Citation lever. The main difference to confirm is trim design and keying, since the Corbin Russwin uses ML2000 Series trim and accepts Corbin Russwin or most other manufacturers' cylinders while the Schlage is supplied with 03A trim.
9) Can I electrify an existing mortise opening without replacing the whole lockset instead of buying an ML20907-CS?
If the opening already has a mortise lock and trim you want to keep, the Command Access ML190 Series motorized mortise lock is the retrofit-oriented route: it is a heavy-duty storeroom-function motorized mortise lock with field selectable EL/EU operation on 24VDC, so one body covers electrically locked or electrically unlocked without ordering two part numbers. The ML20907-CS is ordered as Fail Safe or Fail Secure at the time of purchase and comes as a complete ML2000 Series lockset with CS-Citation lever trim, so it is the choice when you are replacing the lock, trim and all.
10) Will the ML20907 latch into my existing ANSI mortise strike?
It ships with an ANSI straight lip strike, 4-7/8 x 1-1/4 inches with 1-1/8 inch lip to center, and the latchbolt has a 3/4 inch throw with a 9/16 inch deadlocking auxiliary latch. If your frame is already prepped for a standard ANSI straight lip strike at 1-1/8 lip to center, the existing cutout works; if your current strike has a different lip to center, use the supplied strike and adjust the frame.
11) What does the request to exit option on an electrified mortise lock actually do for my access control system?
RX monitoring is an orderable option on the ML20907. It sends a signal to the access control panel whenever the inside lever is turned, so the system knows an authorized exit occurred and does not log it as a forced door. If your panel needs that input, specify the RX version at order time; it is not something you add to a non-RX lock later.
12) Is a mortise lock like the ML20907 stronger than a cylindrical lock for a high traffic entry?
For a heavy traffic commercial opening the mortise body is the heavier answer. The ML2000 lock case is heavy gauge steel at 5-7/8 x 4 x 15/16 inches with a 1 inch stainless deadbolt and thru-bolted trim, and it is tested to ANSI/BHMA A156.13 Series 1000 Operational and Security Grade 1 with a verified 14.5 million cycles. A cylindrical lock such as the Schlage PC10 is Grade 1 too but fits a bored door prep rather than a mortise pocket, so the deciding factor is usually which prep the door already has.
13) What else could I use instead of the Corbin Russwin ML20907 for a wired electrified mortise opening?
Two comparable wired mortise options: the BEST 45HW Series electromechanical mortise lock, which runs 12V or 24V, and the Schlage L9092EU electric lock/unlock outside lever mortise lock with RX, keyed outside, 12/24VDC, listed for 1-3/4 inch doors. The Command Access ML190 Series is the field-selectable route, with EL/EU operation selectable on site and 24VDC power in a storeroom function.
14) Can I standardize a behavioral health or healthcare facility on the ML2000 Series and still get the right trim?
Yes. The ML2000 Series carries a range of trim designs including Museo, Vineyard and Behavioral Health (BHSS/BLSS), plus status indicator options showing locked or unlocked on sectional and escutcheon trim. That lets you run one lock body platform across a building and vary trim by room type. For rooms that need a full anti-ligature set rather than a lever, the TownSteel MRX-L-01 Grade 1 anti-ligature lever mortise lockset and the Marks USA 5PDN ligature resistant hospital push/pull paddleset are the alternatives.
15) How far is the lever from the cylinder on a Corbin Russwin ML2000 mortise lock, for ordering escutcheon trim?
Center to center from knob or lever to cylinder is 3-5/8 inches (92mm), and lever to thumbturn is 2-7/16 inches (62mm). Those are the numbers that decide whether an escutcheon plate lines up with the holes already in your door, and the armored front is 8 x 1-1/4 inches.
16) Is the BEST 45HW a substitute for the Corbin Russwin ML20907-CS?
The BEST 45HW is the closest like-for-like in the BEST line: a heavy duty wired electromechanical mortise lock with 12V/24V operation, so it serves the same access-controlled openings. Confirm which voltage your power supply delivers and match the trim family, because the ML20907-CS is supplied with CS-Citation lever trim on A or B rose or M or N escutcheon and in 605, 613, 625, 626 or 630 finishes, which is a different trim catalog than BEST's.
17) If the opening does not need to be electrified, what mechanical mortise lock covers the same duty as the ML20907-CS?
For a purely mechanical Grade 1 mortise opening, look at the Accentra 8805FL storeroom lock from the 8800 Series, the Cal-Royal NM8080 Grade 1 storeroom mortise lockset with an interchangeable core option for 1-3/4 inch doors, or the Cal-Royal NM8070 Grade 1 classroom lockset. These give you the same heavy commercial mortise prep without the wiring, while the ML20907-CS is the choice when the door must be released or secured on a signal from an access control system.
18) Will a wireless mortise lock do the same job as the ML20907-CS on a credentialed door?
It depends on whether the door has to release on a signal from a panel. The Schlage LEMD-GRW is a Grade 1 ENGAGE Series wireless mortise lock with a 125kHz proximity reader and a 3-hour fire rating, and the TownSteel FME-2000 is a Grade 1 heavy duty classroom mortise lockset with RFID for 1-3/4 inch doors; both read a credential at the door itself. The ML20907-CS is a wired Fail Safe or Fail Secure lockset controlled by the access system, with request-to-exit monitoring available, so it is the one to use where the panel must hold the door unlocked or drop it on alarm.
19) Which mortise products look like alternatives to the ML20907-CS but will not work on an access-controlled lever opening?
Several mortise items in the same size range serve a different purpose. The Sargent 4874 is a double cylinder mortise deadbolt with a 2-3/4 inch backset and no lever function at all. The Sargent 130KB and 130W are mortise thumbturns, trim pieces rather than lock bodies. The Schlage PM010 and Falcon MA101 are non-keyed Grade 1 passage mortise locks with no locking function. The Schlage L0170 is half dummy trim. None of them can be signaled by an access control system the way the Fail Safe or Fail Secure ML20907-CS can.
20) For a behavioral health opening, is the ML20907-CS the right pick or should I look at anti-ligature trim?
For rooms requiring ligature-resistant trim, 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 arch trim passage version in satin stainless, and the Marks USA 5PDN is a Grade 1 hospital passage push/pull paddleset that is ligature resistant and ADA compliant. Those are passage-function products, so where the same corridor door also has to be locked and released electrically, the ML20907-CS is the lockset that does it, offered Fail Safe or Fail Secure with the CS-Citation lever.
21) I need a mortise lock for a 1-5/8 inch door - will the ML20907-CS fit, or is there a better option?
The ML20907-CS is specified at a 1-3/4 inch door thickness. For thinner doors in the 1-5/8 to 1-7/8 inch range, the Alarm Lock DL2700CR Grade 1 classroom electronic mortise lock and the DL3500CR Grade 1 classroom lock both list that range, and the DL2700CR adds a weatherproof design for exterior openings. Match the function you need at the opening before you order, since both of those are classroom function.
22) Is the ML20907 a good choice if I want to change lock functions later without buying new lock bodies?
It is. The ML2000 platform gives 12 functions configurable from a single ML2054 lockbody, so a facility can stock fewer spares and change a room from one function to another without swapping the whole lock case. Motorized Electric Latch Retraction (MELR) is also available on the ML20900 series if you need the latch pulled back electrically.
23) What is the difference between the ML20907-CS and the Dormakaba E-Plex E5086 for a controlled entry door?
The Dormakaba E-Plex E5086 is a Grade 1 back-to-back electronic pushbutton and card mortise lock in entry/egress configuration, meaning the credential is presented at the lock and the audit trail lives in the lock. The ML20907-CS is a Grade 1 mortise lockset electrified for Fail Safe or Fail Secure control from an access panel, with optional request-to-exit monitoring reporting back to that panel. Choose the E5086 for standalone control at the door and the ML20907-CS where the opening is tied into a central system.
How fast can I get the Corbin Russwin ML20907-CSA-626-SAF delivered?
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Can I return it if it doesn’t work for me?
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Does the Corbin Russwin ML20907-CSA-626-SAF come with a warranty?
Absolutely. The Corbin Russwin ML20907-CSA-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 ML20907-CSA-626-SAF?
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