Corbin Russwin ML20932 Grade 1...
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$1,153.56
Copy of Corbin Russwin ML20906 Single Cylinder Mortise Electrified Lever Lockset, NS-Newport (Cast) Lever

Corbin Russwin ML20932 Grade 1 Double Cylinder, Both Grips Lock, Mortise Electrified Lever Lockset, NS-Newport (Cast) Lever

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Model: ML20932-NSA-626-SAF
From the ML2000 Series Collection
$2,117.12
$1,153.56
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Corbin Russwin ML20932-NS Mortise Electrified Lever Lockset, Double Cylinder Both Grips Lock with Newport Cast Lever

ANSI/BHMA Grade 1 Electrified Mortise Lock for High-Traffic Commercial Applications

The Corbin Russwin ML20932-NS is a Double Cylinder, Both Grips Lock Mortise Electrified Lever Lockset from the ML2000 Series, featuring the Newport (Cast) lever design. Built to ANSI/BHMA A156.13 Series 1000 Operational and Security Grade 1 standards, this heavy-gauge steel mortise lock is engineered for high-traffic, abusive environments. It accommodates door thicknesses from 1-3/8" to 4" with a standard backset of 2-3/4" (minimum 2-3/8"), and delivers Fail Safe (SAF) and Fail Secure (SEC) operation with auxiliary latch deadlocking. UL listed, UL10c compliant, and ADA compliant, this lockset integrates with access control platforms and Corbin Russwin key systems including patented Access 3® and Pyramid.

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 Shopping Centers
  • Industrial and Warehouse Facilities
  • Multi-Tenant Residential and Mixed-Use Properties

Why Choose Corbin Russwin Quality?

Corbin Russwin ML2000 Series mortise locksets deliver professional-grade reliability through heavy-gauge steel construction that far exceeds ANSI/BHMA A156.13 Series 1000 Operational and Security Grade 1 requirements. The ML20932-NS is backed by a ten-year mechanical warranty, five-year MELR warranty, and two-year electrical warranty, and carries UL, UL10c, UL-cUL (3-hour fire door), ADA, ASTM E330, and Florida Building Code Windstorm certifications. With EcoFlex® technology delivering up to 89% energy savings and direct drive performance ensuring consistent torque and crisp lever return, this lockset is engineered for demanding commercial applications where dependable, long-term 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:
ML20932
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-NSA-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?
The ML20932 is ordered as either Fail Safe (SAF) or Fail Secure (SEC). Fail Safe unlocks the controlled lever when power drops, which is what you want on an egress or stair door that must release in an outage. Fail Secure stays locked without power, so a perimeter or storeroom opening keeps its security when the building loses power. Both are the same lockbody and trim, so the choice is made on the order and tied to how your access control system and fire alarm interface are set up.
2) Will the ML20932 mortise lock fit a 1-3/4 inch door, and what about thicker doors?
1-3/4 inches is the standard door thickness for the ML20932, and that covers most commercial hollow metal and solid core openings. The ML2000 Series accommodates door thicknesses from 1-3/8 inches up to 4 inches, with optional thicknesses ordered for anything off standard. Backset is 2-3/4 inches standard, with a 2-3/8 inch minimum, so it drops into a conventional commercial mortise pocket.
3) Does the ML20932 mean both levers are keyed? What does double cylinder both grips lock actually do on the door?
The 932 function is a double cylinder, both grips lock. There is a cylinder on each side and both levers can be locked, so the opening can be secured from either face and keyed access is required from either face when locked. Electrification on top of that lets your access control release the controlled lever. If you only need one keyed side with the inside lever always free for egress, the 932 is more lock than the opening requires.
4) Will this Corbin Russwin mortise lock latch into the ANSI strike already in my frame?
The ML20932 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 throw and a 9/16 inch deadlocking auxiliary latch, and the deadbolt throws 1 inch. If your frame already has a standard 4-7/8 inch ANSI strike prep with matching lip-to-center, the lock latches into it without new frame work.
5) Is the ML20932 approved for a 3-hour fire rated door?
Yes. The lock is UL and cUL listed and UL10C positive pressure compliant, good for a 3-hour fire door 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 listing, and windstorm/hurricane certification to ASTM E330 and the Florida Building Code.
6) What cylinder and keyway does this come with, and can I key it into my existing Corbin Russwin system?
Standard is a brass 6-pin L4 keyway cylinder, 0-bitted. Keying choices are a full IC 6-pin cylinder in L4, IC 6-pin less core (for your own cores), conventional L4 keyway, or less cylinder entirely. It works with new or existing Corbin Russwin key systems including the patented Access 3 and Pyramid systems, and the lock accepts most other manufacturers' cylinders if you are standardizing on a different keyway.
7) Is an electrified mortise lock the right choice, or should I use a standalone electronic lock instead?
An electrified mortise lock like the ML20932 is wired back to a central access control panel, so credentials, audit and door status live in your head-end system and the lock needs power run to the opening (through a transfer hinge or electric power transfer). If you cannot run wire, a standalone battery lock is the alternative: the Schlage CO-100 mortise, the TownSteel FME-2000 RFID mortise, or the Dormakaba E-Plex 2066 pushbutton mortise all mount in a comparable mortise pocket without wiring. For a networked door on a Grade 1 commercial opening, the wired ML20932 is the one that integrates with the panel.
8) What is the closest cross-brand equivalent to the Corbin Russwin ML20932 electrified mortise lock?
For a wired electrified Grade 1 mortise on the same kind of opening, the Schlage L9092EU with 03A lever is the direct counterpart: electric lock/unlock outside lever, keyed outside, request to exit, 12/24VDC, 1-3/4 inch door. The BEST 45HW wired electromechanical mortise lock is another, running 12V or 24V. The Command Access ML190 Series motorized mortise is field selectable between EL and EU (fail safe / fail secure) at 24VDC, which is useful when you do not want to commit to one function at order time. The ML20932 differs from all three in being a double cylinder both grips lock rather than a single-side electrified function.
9) If the opening does not need electrified control, what mechanical mortise lock can be used instead of the ML20932?
The ML20932 is an electrified mortise lockset with Fail Safe and Fail Secure operation, so on an opening with no power or access control tie-in a purely mechanical body is the simpler route. Options include the Accentra 8805FL Grade 1 storeroom mortise lock from the 8800 Series, the Cal-Royal NM8080 Grade 1 storeroom mortise lockset for 1-3/4 inch doors with an interchangeable core option, and the Cal-Royal NM8050 Grade 1 office/entrance mortise lockset with auxiliary deadlatch. These keep the mortise prep and Grade 1 rating without wiring.
10) What should I use instead of the ML20932 if the door has no power run to it but still needs credential control?
The ML20932 is a wired electrified mortise lock and needs power at the door. Where pulling wire is not practical, standalone or wireless mortise locks cover the same opening: the Alarm Lock DL3500CR Trilogy Grade 1 electronic mortise lock with 300 user codes and classroom function for 1-5/8 to 1-7/8 inch doors, the Schlage CO-100-MS Grade 1 standalone electronic mortise lock with keypad reader in privacy function for 1-3/4 inch doors, the Alarm Lock DL1300NW Trilogy Networx wireless keypad mortise lock for Adams Rite deadlatches, or the TownSteel FME-2000 Grade 1 classroom mortise lockset with RFID. These use onboard credentials rather than an access control panel output.
11) Which mortise products look like substitutes for the ML20932 but will not work in its place?
Several mortise-family items share the word mortise without being a working electrified lockset. The Sargent 130KB and 130W are mortise thumbturns only. The Sargent 4874 is a double cylinder mortise deadbolt with a 2-3/4 inch backset and no latch or lever. The Schlage L0170 is a Grade 1 half dummy trim with no latching function, and the Emtek 3102 Memphis and 3104 Hamilton are dummy mortise entrance locksets. The Kaba Ilco 185 Series is a deadbolt-function mortise lock. None of these provide the latchbolt plus fail safe or fail secure electrified control the ML20932 delivers.
12) Do I have to order the ML20932 handed, or can it be reversed in the field?
It is a handed lock but field reversible. The ML2000 latchbolt is a patented quick reversible design, so handing is changed without opening the lock case. That matters for a property manager stocking spares, since one lock covers left and right hand openings.
13) Do I need request-to-exit monitoring on an electrified mortise lock, and is it an option here?
Request to exit is an order option on the ML20932, yes or no. Specify RX when your access control system needs to know the inside lever has been turned, typically to shunt a door alarm or release a mag-held door so someone leaving does not trip a forced-entry event. On a simple card-in door with no alarm shunt, you can skip it.
14) What trim and finish choices do I have to specify on the ML20932-NS?
Lever style is NS Newport cast. You choose rose or escutcheon trim (A rose, B rose, M escutcheon, N escutcheon) and one of four finishes: 612 satin bronze, 613 satin bronze oil-rubbed, 626 satin chrome, or 630 satin stainless steel. Trim is thru-bolted for alignment and added security. If you are matching existing openings in a building, 626 and 630 are the usual commercial standards.
15) How big is the lock case and armored front? I need to check my existing mortise pocket.
The heavy-gauge steel case measures 5-7/8 x 4 x 15/16 inches (149 x 102 x 24 mm) and the armored front is 8 x 1-1/4 inches in wrought brass, bronze or stainless. Center to center from lever to cylinder is 3-5/8 inches, and lever to thumbturn is 2-7/16 inches, so a door already prepped for a standard ANSI mortise lock will take it without re-machining the face.
16) Is this lock heavy duty enough for a high-traffic school or hospital corridor?
It is built for exactly that. The steel case carries ANSI/BHMA A156.13 Series 1000 Operational and Security Grade 1, and UL cycle testing verified 14.5 million cycles (Verification ID V875753). The anti-friction two-piece latchbolt takes less force to close, which helps on doors with closers and stack pressure. Typical applications are commercial offices, healthcare, education, government, retail, industrial and multi-tenant residential.
17) Can I get electric latch retraction with the ML20900 series, and do I need it on this lock?
Motorized Electric Latch Retraction (MELR) is available on the ML20900 series. MELR pulls the latchbolt back so the door can be pushed or pulled freely, which is what you use for a door held on free access during business hours or paired with an automatic operator. If you only need the lever electrically controlled, the standard fail safe or fail secure electrification is enough and MELR is unnecessary.
18) Is the Command Access ML190 a workable alternative to the Corbin Russwin ML20932 for a motorized retraction opening?
Yes, for motorized electrified mortise applications the Command Access ML190 Series is the peer to look at: it is a heavy-duty motorized mortise lock in storeroom function with field selectable EL/EU operation and 24VDC power. The ML20932 is ordered as a Fail Safe or Fail Secure variant rather than field selectable between the two, so if you want one part number that can be set either way at install the ML190 is the one that does it.
19) What is a good alternative to the ML20932 for a behavioral health or anti-ligature opening?
The ML20932 is offered with rose and escutcheon trim in a cast Newport lever, which is a conventional lever profile. For openings 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 same passage-function Grade 1 heavy duty lockset 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. Note that all three are passage function rather than keyed or electrified.
20) How does the ML20932 compare with card-reader mortise locks like the Dormakaba Saffire or Schlage LE series?
The ML20932 is a wired Grade 1 electrified mortise lockset controlled by an external access control system, with Fail Safe and Fail Secure variants and optional request-to-exit monitoring. The credential-onboard alternatives differ in grade and reader type: the Dormakaba LX-I-M002 Saffire is an electronic RFID mortise lockset with BLE mobile access at BHMA Grade 2, the Schlage LEBMB-ADD is a Grade 2 mobile-enabled mortise lock with push button and LED covering privacy, office and apartment functions with a 3 hour fire rating, and the Schlage LEMD-GRW is a Grade 1 ENGAGE wireless mortise lock with a 125kHz proximity reader and 3 hour fire rating. Choose by whether the credential decision is made at the door or at a panel.
21) Are the Baldwin 6301 and 6310 mortise lock bodies interchangeable with the Corbin Russwin ML20932?
No. The ML20932 uses a 2-3/4 inch backset, while the Baldwin 6301 entry/apartment and 6310 entrance/storeroom mortise lock bodies are 2-1/2 inch backset units, so the cylinder and lever spacing relative to the door edge differs and the mortise pocket prep will not line up. The Baldwin bodies are also mechanical, with no electrified fail safe or fail secure operation. The 6301 is listed for 1-3/4 inch and over doors and the 6310 for 1-3/8 inch and over.
22) If I need a classroom or intruder function instead of the ML20932's electrified control, what should I order?
The ML20932 is a double cylinder both-grips electrified lock, not a lockdown function. For classroom and intruder openings the peers are the Cal-Royal NM8070 Grade 1 classroom mortise lockset with auxiliary deadlatch for 1-3/4 inch doors, the Marks USA LA318GJ Grade 1 classroom security indicator mortise lockset with ANSI strike and steel escutcheon for 1-3/4 inch doors, the BEST 45HCA heavy duty mortise lockbody with intruder function, and the TownSteel FME-4000 Grade 1 heavy duty electronic intruder classroom mortise lockset with RFID.
23) The ML20932 is field reversible for handing - which comparable mortise locks also handle reversing without a handed order?
The ML20932 is field reversible, so handing is set at install. Among the peers, the BEST 45H heavy duty mortise lock body in public entrance function is field reversible, the Falcon MA101 Grade 1 heavy-duty mortise passage lock is field reversible and fire rated, and the Kaba Ilco 185 Series mortise locks are supplied with no handing. By contrast the Schlage LEMD-GRW and the Baldwin 6310190RRLS are ordered handed, right hand and right hand reverse respectively.
24) Will a Dormakaba E-Plex or PowerPlex mortise lock cover the same opening as the Corbin Russwin ML20932?
They cover the same door prep family but work differently. The ML20932 is a wired electrified mortise lockset in Fail Safe or Fail Secure with optional request-to-exit monitoring. The Dormakaba E-Plex E5086 is a Grade 1 entry/egress electronic pushbutton and card mortise lock in a back-to-back configuration, the E-Plex 2066 is an electronic pushbutton keyless mortise lock for wide stile applications, and the PowerPlex P2066 is a mortise lock from the PowerPlex 2000 Series. Those are credential-at-the-door locks rather than panel-controlled electrified bodies, so they do not take a fail safe or fail secure output from an access control system.
25) For a non-keyed opening on the same mortise prep as the ML20932, what are the options?
The ML20932 is keyed, offered with an L4 keyway cylinder, IC 6-pin cylinder, IC less core or less cylinder. Where no key is wanted at all, non-keyed mortise peers include the Schlage PM010 Grade 1 passage latch mortise lock for 1-3/4 inch doors, the Hager 3810S Grade 1 passage mortise lock with rose and 2-3/4 inch backset for 1-3/4 to 2-1/2 inch doors, the Hager 3810E with escutcheon in the same backset, and the Hager 3850E Grade 1 office mortise lock with lever and escutcheon, non-keyed. The Hager 3840S is the Grade 1 privacy option for 1-3/4 to 2 inch doors.
26) Can I use a cylindrical lock in place of the ML20932 mortise lockset?
Not without changing the door prep. The ML20932 is a mortise lock, which requires a rectangular pocket in the door edge, while the Schlage PC10 Grade 1 passage cylindrical lock with rose for 1-3/4 inch doors uses bored cross-bore prep. The Codelocks CL2255 is another case to watch: it is an electronic tubular mortise latch in a medium duty rating, a different body and duty class than a Grade 1 mortise lockset. Match the existing prep before substituting.
27) What mortise lock should I look at instead of the ML20932 for a dormitory or corridor opening with a deadbolt?
The ML20932 is a double cylinder both-grips electrified lock. For a dorm corridor opening with a deadbolt and no electrification, the Sargent 7925 is a Grade 1 heavy duty dormitory exit function mortise lock with rose trim and a single cylinder deadbolt. If only a deadbolt is needed, the Sargent 4874 is a double cylinder mortise deadbolt with a 2-3/4 inch backset, matching the ML20932 backset but with no latch or lever.
28) For a narrow or glass storefront door, is the ML20932 the right mortise lock?
The ML20932 is a heavy-gauge steel commercial mortise lockset built around a 2-3/4 inch backset and a 5-7/8 inch by 4 inch by 15/16 inch lockcase, which suits standard commercial wood and hollow metal doors rather than narrow aluminum stiles. For storefront and glass door openings, look at the Kaba Ilco BR Series glass door bottom rail lock, or the Alarm Lock DL1300NW Trilogy Networx wireless keypad mortise lock designed for Adams Rite deadlatches. The Dormakaba E-Plex 2066 is specified for wide stile doors.
29) Is there a keypad mortise lock with key override that could replace the ML20932?
Yes. The ML20932 offers key access through its L4 keyway or IC 6-pin cylinder while the electrified function is driven by an access control system. If you want the credential logic in the lock itself but still need a mechanical key path, the BEST 45HZ EZ Series is an electronic keypad mortise lock with key override function, and the Accentra NTM623-NR nexTouch Generation 3 is a Grade 1 mortise lock with a capacitive touchscreen keypad, no deadbolt, and cylinder override.
30) If I need one lockbody that can cover several functions across a building, does the ML2000 do that?
Yes, the ML2054 lockbody in the ML2000 Series is multi-function: 12 functions are configurable from that single body. For an MRO or facilities buyer standardizing a campus, that cuts the number of lockbodies you stock while keeping ANSI/BHMA Grade 1 across the openings. Trim, status indicator options for locked/unlocked visibility, and designs including Museo, Vineyard and Behavioral Health (BHSS/BLSS) are selected separately from the body.
31) Do the Marks USA 21AC and 22AC ornamental iron mortise locks substitute for the ML20932?
No. The Marks USA 21AC and 22AC are entrance double cylinder ornamental iron mortise locks with a round knob, listed for 1 inch door thickness, which is an ornamental gate and iron door application. The ML20932 is specified for 1-3/4 inch doors and is an electrified lever lockset, so neither the door thickness nor the electrified function carries across.
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Absolutely. The Corbin Russwin ML20932-NSA-626-SAF is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
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