Corbin Russwin ML20932 Grade 1...
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$2,117.12
$1,238.57
Corbin Russwin ML20932 Double Cylinder, Both Grips Lock, Mortise Electrified Lever Lockset, AS-Armstrong Lever

Corbin Russwin ML20932 Grade 1 Double Cylinder, Both Grips Lock, Mortise Electrified Lever Lockset, AS-Armstrong Lever

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Model: ML20932-ASA-626-SAF
From the ML2000 Series Collection
$2,117.12
$1,238.57
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Corbin Russwin ML20932-AS Mortise Electrified Lever Lockset, Double Cylinder Both Grips Lock with Armstrong Lever, Fail Safe/Fail Secure

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

The Corbin Russwin ML20932-AS Mortise Electrified Lever Lockset is a heavy-duty, ANSI/BHMA A156.13 Series 1000 Grade 1 electrified mortise lock engineered for high-traffic and abusive commercial environments. Featuring the Armstrong lever design with double cylinder, both-grips-lock functionality, this lockset supports both Fail Safe (SAF) and Fail Secure (SEC) operating modes, making it ideal for access-controlled openings requiring flexible security configurations. Constructed of heavy-gauge steel, the ML20932-AS accommodates standard door thicknesses of 1-3/4" (with a range of 1-3/8" to 4") and a standard backset of 2-3/4" (range: 2-3/8" to 2-3/4"), with a 3/4" latchbolt throw. UL listed, UL10c compliant, and rated for fire doors up to and including 3-hour fire ratings, this lockset delivers certified performance across a broad range of 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 and Corporate Campuses
  • Healthcare Institutions and Medical Facilities
  • Educational Facilities and University 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 built to ANSI/BHMA A156.13 Series 1000 Grade 1 standards using heavy-gauge steel construction, far exceeding Grade 1 requirements for durability and longevity in the most demanding commercial environments. The ML20932-AS 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 fire door compliance up to 3-hour ratings, ADA compliance, and EcoFlex® technology delivering up to 89% energy savings, this lockset is engineered for professionals who require certified, sustainable, and dependable access control performance.

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 ML20932-ASA-626-SAF – Frequently Asked Questions

1) What is the difference between the Fail Safe and Fail Secure versions of the Corbin Russwin ML20932 electrified mortise lock?
Both are orderable on the ML20932. Fail Safe means the outside lever unlocks when power is removed, which is what you want on a stair or egress-critical opening where people must get back in during an alarm or outage. Fail Secure keeps the lever locked when power drops, so the door stays secure through a power loss and entry is by key or credential. The mechanical latch retracts by the inside lever either way, so egress is unaffected. Pick the mode at order time; it is a separate option on the lock.
2) Will the Corbin Russwin ML20932 fit a 1-3/4 inch door with a 2-3/4 inch backset?
That is exactly its standard prep. The ML20932 is built for 1-3/4 inch doors with a 2-3/4 inch backset, and the lockcase measures 5-7/8 x 4 x 15/16 inches, so the pocket in the door has to accept that case. Center to center from lever to cylinder is 3-5/8 inches, and lever to thumbturn is 2-7/16 inches, which are the holes you need to verify against an existing prep.
3) Will the ML20932 latch into an existing ANSI mortise strike?
It should. The lock ships with a 3/4 inch throw two-piece anti-friction latchbolt and an ANSI straight lip strike with 1-1/8 inch lip to center, plus a 9/16 inch effective throw deadlocking auxiliary latch. If the frame already carries a standard ANSI strike cutout with the same lip-to-center dimension, the new latch drops into it. The 1 inch stainless deadbolt also needs strike depth for its full 1 inch throw.
4) Do I have to order the ML20932 handed, or can I re-hand it on the job?
Order it and re-hand it in the field if needed. The latchbolt is a patented quick reversible design, so handing is changed without opening the lock case. That matters when you are standardizing a building and do not want to stock left and right versions of the same electrified lock.
5) Can the ML20932 go on a fire-rated door?
Yes. It is UL and cUL listed, UL10C positive pressure, and good for fire doors up to and including a 3-hour rating, covering single doors to 4 by 10 feet and pairs to 8 by 10 feet. It is also ADA A117.1 compliant, California State Fire Marshal accepted, and windstorm/hurricane certified, which is what an institutional spec usually asks for beyond the grade.
6) Can I order the ML20932 without a cylinder so I can use my building's existing keyway?
Yes. Keying is an order option: take it with the standard 6-pin L4 keyway brass cylinder, 0-bitted, or order it less cylinder and fit your own. The lock works with new or existing Corbin Russwin key systems and accepts most other manufacturers' cylinders, so an existing masterkey system usually carries over.
7) My doors are 1-5/8 to 1-7/8 inches thick. Is the ML20932 still the right lock?
Not off the standard build. The ML20932 is specified for 1-3/4 inch doors, with optional thicknesses available on request from the series. If your leaves fall in a 1-5/8 to 1-7/8 inch range, the Alarm Lock DL2700CR and DL3500CR electronic mortise locks are listed for that thickness range, and the Hager 3800 Series mortise locks cover 1-3/4 to 2-1/2 inches. Measure the leaf before you commit.
8) What is the closest cross-brand equivalent to the Corbin Russwin ML20932-AS electrified mortise lockset for an access-controlled opening with request-to-exit?
The Schlage L9092EU with 03A trim is the nearest peer: it is a heavy duty electric lock/unlock outside lever mortise lock, keyed outside, with request to exit (RX) monitoring and 12/24VDC operation, for a 1-3/4 inch door. The ML20932-AS is likewise a mortise electrified lever lockset for a 1-3/4 inch door with a 2-3/4 inch backset, offered in Fail Safe and Fail Secure configurations and with or without request to exit monitoring. The difference is trim and function: the Corbin Russwin is a double cylinder, both-grips-lock design with an Armstrong lever, while the Schlage is a corridor-function lock with keyed outside lever only.
9) Is there an electrified mortise lock that lets the installer choose fail safe or fail secure in the field instead of ordering it one way?
The Command Access ML190 Series motorized mortise lock (ML19092) is field selectable between EL and EU operation and runs on 24VDC, in a heavy-duty storeroom function. The Corbin Russwin ML20932-AS is ordered as either a Fail Safe or a Fail Secure unit rather than switched on site, so the ML190 is the choice when the electrical mode has not been settled before the hardware ships.
10) What should I use instead of the ML20932-AS if the opening has no wiring and no access control panel?
Go to a standalone electronic mortise lock. The Alarm Lock DL3500CR Trilogy 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 in privacy function for 1-3/4 inch doors. The Corbin Russwin ML20932-AS is a wired electrified lockset intended to be driven by an access control system, with Fail Safe and Fail Secure modes.
11) We need credentialed access on the door rather than keys - what mortise locks read a card or mobile credential instead of the ML20932-AS?
The Schlage LEMD-GRW is a Grade 1 ENGAGE Series wireless mortise lock with a 125kHz proximity reader and mobile-enabled deadbolt, 3-hour fire rated, with Greenwich trim, right hand. The TownSteel FME-2000 is a Grade 1 heavy duty classroom mortise lockset with RFID technology for 1-3/4 inch doors, and the Dormakaba Saffire LX-I-M002 is an electronic RFID mortise lockset with BLE mobile access at BHMA Grade 2. The Corbin Russwin ML20932-AS carries no reader of its own - it is a double cylinder electrified lockset keyed to an L4 keyway or supplied less cylinder, with the credential handled by a separate reader on the access control system.
12) Our doors are 1-5/8 inch thick - the ML20932-AS is not right, what electronic mortise lock fits?
The Corbin Russwin ML20932-AS is specified for a 1-3/4 inch door. For thinner leaves, the Alarm Lock Trilogy line covers 1-5/8 inch to 1-7/8 inch: the DL2700CR is a Grade 1 classroom electronic mortise lock with weatherproof design, and the DL3500CR is a Grade 1 classroom electronic mortise lock with 300 user codes. The DL4500 in the same thickness range is an electronic mortise deadbolt with 2,000 user codes and privacy keypad rather than a latching lockset.
13) What does double cylinder, both grips lock mean on the ML20932?
Both levers can be locked, and there is a cylinder on each side of the door, so the opening is keyed from inside and outside. It suits an opening you need to control in both directions, such as a secure corridor or an interior perimeter between two controlled zones. If you only need to key one side, a single-cylinder function from the same ML2000 lockbody family is the right call instead.
14) Does the ML20932 offer a request-to-exit signal for my access control panel?
Request to exit monitoring is an option on the ML20932, ordered either with or without. Specify it with RX if the panel needs to see the inside lever being used, so a valid egress does not read as a forced door. If you are comparing, the Schlage L9092EU with 03A trim is another electrified mortise lock with request to exit, keyed outside, on a 1-3/4 inch door.
15) What lever, trim and finish choices come on the ML20932-AS?
The AS version uses the cast Armstrong lever. Trim is either rose (A or B) or escutcheon (M or N), and finishes are 625 bright chrome or 626 satin chrome. Trim is thru-bolted for alignment and added security, and status indicators for locked/unlocked visibility are available on sectional and escutcheon trim if staff need to read door state at a glance.
16) Is the ML20932 heavy duty enough for a high traffic entrance in a school or hospital?
It is built for that. ANSI/BHMA A156.13 Series 1000, Grade 1 for both operation and security, heavy-gauge steel lockcase, and UL cycle tested to 14.5 million cycles (verification ID V875753). An armored front in wrought brass, bronze or stainless steel protects the latch area on abused openings.
17) I need an electrified mortise lock but don't want to run wire and a panel. What else could I use?
The ML20932 is a wired electrified lock, so it needs power and normally an access control head end. If that infrastructure is not there, a standalone credential lock is the simpler route: the Alarm Lock DL3500CR is a Grade 1 classroom-function electronic mortise lock with 300 user codes, the Schlage CO-100 is a Grade 1 standalone keypad mortise lock, and the TownSteel FME-2000 is a Grade 1 classroom mortise lockset with RFID. All three are battery-powered decisions rather than wiring decisions.
18) Is there an electrified mortise option with electric latch retraction instead of just electric lever control?
Yes. Motorized Electric Latch Retraction (MELR) is offered on the ML20900 series, which is what you want when the latch itself must pull back for hands-free or momentary free access rather than simply unlocking the outside lever. A comparable from another brand is the Command Access ML190 Series motorized mortise lock with field selectable EL/EU operation on 24VDC.
19) What is the straight non-electrified alternative if the opening doesn't need access control?
A mechanical Grade 1 mortise lock does the job for less complexity. The Cal-Royal NM8080 is a Grade 1 storeroom mortise lockset for 1-3/4 inch doors with an interchangeable core option, the NM8050 is the office/entrance version, and the Accentra 8805FL is a Grade 1 storeroom mortise lock in the 8800 Series. None of those give you remote lock/unlock, which is the only reason to take the electrified ML20932.
20) If the opening does not need to be electrified, what mechanical Grade 1 mortise lockset covers the same door?
For a keyed mechanical opening, the Accentra 8805FL is a Grade 1 storeroom mortise lock with Arcadia lever from the 8800 Series, and the Cal-Royal NM8080 is a Grade 1 storeroom mortise lockset with an interchangeable core option for 1-3/4 inch doors. Both cover the same 1-3/4 inch door thickness the Corbin Russwin ML20932-AS is built for, without the wiring, request-to-exit option, or Fail Safe/Fail Secure behavior of the electrified unit.
21) Is the BEST 45HW wired mortise lock an alternative to the Corbin Russwin ML20932-AS?
Yes, for a wired access-controlled opening. The BEST 45HW Series is a heavy duty wired electromechanical mortise lock with 12V/24V operation. The Corbin Russwin ML20932-AS is also a wired electrified mortise lockset, supplied in Fail Safe or Fail Secure form with optional request to exit monitoring, in Bright Chrome 625 or Satin Chrome 626 with the Armstrong cast lever and a choice of rose or escutcheon trim. Confirm the voltage your panel supplies before choosing between them.
22) What mortise products look like a substitute for the ML20932-AS but will not work on an electrified opening?
Several mortise items in the same family are not functional replacements. The Sargent 130KB and 130W are mortise thumbturns, trim pieces only. The Schlage L0170 is a half dummy trim, non-keyed, and the Emtek 3102 Memphis and 3104 Hamilton mortise entrance locksets are dummy function - no latch operation at all. The Schlage PM010 and Falcon MA101 are Grade 1 passage mortise locks with no keyed or electrified control. The Corbin Russwin ML20932-AS is a keyed, electrified double cylinder both-grips-lock lockset operating in Fail Safe or Fail Secure mode, so none of those will hold or release the door under access control.
23) For a behavioral health or anti-ligature opening, what mortise lockset should I look at instead of the ML20932-AS Armstrong lever?
The Armstrong cast lever on the ML20932-AS is a conventional lever profile. For ligature-resistant openings, 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 same passage function with satin stainless ligature resistant arch trim, 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.
24) Is the Sargent 4874 double cylinder mortise deadbolt a substitute for the ML20932-AS double cylinder lockset?
No. The Sargent 4874 is a double cylinder mortise deadbolt on a 2-3/4 inch backset - deadbolt only, with no lever and no latchbolt. The Corbin Russwin ML20932-AS is a complete electrified lever lockset on the same 2-3/4 inch backset with a 3/4 inch latchbolt and an ANSI straight lip strike, keyed both sides with both grips locking. The 4874 would be an addition to an opening, not a replacement for the lockset.
25) Can I use a Baldwin 6301 or 6310 mortise lock body in place of the Corbin Russwin ML20932-AS?
Not in the same prep. The Baldwin 6301 entry/apartment and 6310 entry/storeroom mortise lock bodies use a 2-1/2 inch backset, while the Corbin Russwin ML20932-AS is a 2-3/4 inch backset lock. The Baldwin bodies are also mechanical entrance-type locks with no electrified operation, where the ML20932-AS is field reversible and supplied in Fail Safe or Fail Secure electrified form.
26) If I'm standardizing a building on ML2000, can I use one lockbody for different functions?
Largely, yes. Twelve functions are configurable from a single ML2054 lockbody, so a maintenance shop can stock one case and set it for the opening rather than carrying a dozen part numbers. Trim ranges across the series as well, including Museo, Vineyard and Behavioral Health (BHSS/BLSS) designs, so appearance stays consistent while function varies door to door.
How fast can I get the Corbin Russwin ML20932-ASA-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 ML20932-ASA-626-SAF come with a warranty?
Absolutely. The Corbin Russwin ML20932-ASA-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 ML20932-ASA-626-SAF?
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