Corbin Russwin ML20932 Grade 1...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$2,117.12
$1,238.57
Corbin Russwin ML20932 Double Cylinder, Both Grips Lock, Mortise Electrified Lever Lockset, CS-Citation Lever

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

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Model: ML20932-CSA-626-SAF
From the ML2000 Series Collection
$2,117.12
$1,238.57
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In Stock (leaves warehouse same day if ordered before 3pm ET)

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Corbin Russwin ML20932 -CS Mortise Electrified Lever Lockset, Double Cylinder Both Grips Lock with CS-Citation Lever, Fail Safe/Fail Secure

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

The Corbin Russwin ML20932 -CS is a commercial-grade mortise electrified lever lockset from the ML2000 Series, featuring the CS-Citation lever design and a double cylinder, both-grips-lock function with field-selectable Fail Safe (SAF) and Fail Secure (SEC) operation. Designed for doors with a standard thickness of 1-3/4" (accommodating a range from 1-3/8" to 4") and a standard backset of 2-3/4" (ranging from 2-3/8" to 2-3/4"), this lockset meets ANSI/BHMA A156.13 Series 1000 Operational and Security Grade 1 requirements. It is UL listed, UL10c compliant, and rated for use on fire doors up to and including 3-hour fire ratings, making it an authoritative solution for demanding access control environments.

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 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 engineered to exceed ANSI/BHMA A156.13 Series 1000 Operational and Security Grade 1 requirements, constructed of heavy-gauge steel with patented features including EcoFlex® technology for up to 89% energy savings and Motorized Electric Latch Retraction that retracts the latchbolt in ½ second. The ML20932 -CS is backed by a ten-year mechanical warranty, five-year MELR warranty, and two-year electrical warranty, and carries UL, UL10c, UL 294, ADA, ASTM E330, and Florida Building Code Windstorm certifications. Engineered for demanding commercial applications where dependable, code-compliant 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-CSA-626-SAF – Frequently Asked Questions

1) Will the Corbin Russwin ML20932 mortise lockset fit a standard 1-3/4 inch commercial door?
Yes. The ML20932 is built for 1-3/4 inch door thickness as standard, with optional thicknesses available for doors from 1-3/8 inch up to 4 inches. It uses a 2-3/4 inch backset, which is the standard mortise backset on commercial openings, and the lock case measures 5-7/8 x 4 x 15/16 inches with an 8 x 1-1/4 inch armored front.
2) What is the difference between the Fail Safe and Fail Secure versions of the ML20932?
You pick one at order time. Fail Safe unlocks the controlled grip when power is removed, which is what you use on a stair or egress path where people have to get out during a power loss. Fail Secure keeps it locked when power drops, which is the right choice for a stock room, IT closet, or anywhere loss of power should not open the door. Both are offered on the ML20932, so match the choice to the life-safety and access control plan for that opening.
3) Can the ML20932 go on a fire rated door?
Yes. The ML2000 Series mortise lock is UL and cUL listed and UL10C positive pressure compliant, rated for fire doors up to and including 3-hour ratings, on singles up to 4 ft x 10 ft and pairs up to 8 ft x 10 ft. It also carries ANSI/BHMA A156.13 Series 1000 Operational and Security Grade 1, ADA A117.1, and California State Fire Marshal listing, which is usually the full package an institutional spec calls for.
4) Do I have to specify handing when ordering this Corbin Russwin mortise lock?
The lock is handed but field reversible. The patented Quick Reversible latchbolt lets you change hand without taking the lock case apart, so a locksmith can correct a hand at the door instead of sending the lock back. Useful if you are stocking spares for a building with mixed left and right hand openings.
5) Will the ML20932 latch into the strike already in my frame?
It 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 has a 3/4 inch throw and the auxiliary deadlatch has a 9/16 inch effective throw, with a 1 inch stainless deadbolt at 1 inch throw. If your frame already has a standard ANSI 4-7/8 inch strike prep, the lock drops into it; if the existing strike is a T-strike or a non-ANSI prep, plan on changing the strike or the frame prep.
6) What does the double cylinder both grips lock function on the ML20932 actually do?
Both the inside and outside levers are keyed and both lock. Key either side to lock or release the grips, and the electrified side is controlled by your access control system in Fail Safe or Fail Secure mode. It is the function you use where you need key control from both faces of the door rather than a free-egress inside lever, so check your local egress requirements for the opening before you commit to it.
7) Do I need to order a cylinder with this lock, or can I use my building's existing key system?
Both routes are open. Order it with the L4 keyway cylinder (brass, 6-pin, 0-bitted as standard so your locksmith bits it to your system) or order it less cylinder and install what you already use. The ML2000 works with new or existing Corbin Russwin key systems and accepts most other manufacturers' cylinders, so a building standardized on another brand's keyway can usually keep its keys.
8) My opening is a Baldwin or Marks ornamental mortise lock. Can I drop the ML20932 into that door?
Probably not without rework. The ML20932 is cut for a 2-3/4 inch backset, while Baldwin's 6301 and 6310 mortise bodies run a 2-1/2 inch backset, and the Marks 21AC and 22AC ornamental iron mortise locks are built for 1 inch thick doors. Different backset means a different case pocket and different face bore locations. If you are replacing a Baldwin, stay with a 2-1/2 inch backset body; if you are on a 1 inch ornamental iron door, the ML20932 will not fit at all.
9) What is the closest cross-brand equivalent to a Corbin Russwin ML20932 electrified mortise lockset with request-to-exit?
The nearest peer is the Schlage L9092EU electric lock/unlock outside lever mortise lock, offered keyed outside with request-to-exit monitoring and 12/24VDC operation for a 1-3/4 inch door in heavy duty construction. The ML20932 is a Grade 1 ML2000 Series mortise electrified lever lockset with a 2-3/4 inch backset on a 1-3/4 inch door, and it is ordered with or without request-to-exit monitoring and in Fail Safe or Fail Secure. The Schlage part is an electrically unlocked (EU) outside lever arrangement, while the ML20932 is a double cylinder, both-grips-lock function, so confirm which side you need controlled before you swap.
10) Is there an electrified mortise lock that can be field-selected between fail safe and fail secure besides the Corbin Russwin ML20932?
Yes. The Command Access ML190 Series motorized mortise lock is a heavy-duty storeroom-function lock with field selectable EL/EU operation on 24VDC. The ML20932 is also supplied Fail Safe or Fail Secure and is field reversible for handing. The difference is function: the Command Access unit is a storeroom lock, while the ML20932 is a double cylinder both-grips-lock arrangement, so key control on both sides of the opening determines which one fits the door.
11) What should I use instead of the ML20932 if the opening needs credential reading at the door rather than wired access control?
For a standalone credential at the door, look at the TownSteel FME-2000 Series Grade 1 classroom mortise lockset with RFID for a 1-3/4 inch door, or the Schlage LEMD-GRW Grade 1 ENGAGE wireless mortise lock with a 125kHz proximity reader and a 3-hour fire rating. The Corbin Russwin ML20932 has no onboard reader; it is a wired electrified lockset ordered Fail Safe or Fail Secure and keyed to an L4 keyway or supplied less cylinder, so it relies on an upstream access control panel and power supply.
12) What is request to exit monitoring and should I order the ML20932 with it?
RX is a switch in the lock that signals your access control panel when the inside lever is turned, so the system knows the exit was legitimate and does not throw a forced-door alarm. Order the RX option if the opening is monitored or alarmed. If the door is only electrically controlled with no monitoring at the panel, the non-RX version is the one to take. RX is offered as a yes/no choice on the ML20932.
13) What trim and finish choices do I have on the ML20932, and will it match the rest of my doors?
Lever style is the CS Citation cast lever. Trim mounts as an A rose, a B rose, or an N escutcheon, and finishes are 605 bright brass, 626 satin chrome, and 630 satin stainless steel. 626 and 630 are the two that normally match existing commercial hardware in an office or institutional building; 605 is the polished brass option. Trim is thru-bolted for alignment and security.
14) How far apart are the cylinder and lever on this mortise lock for door prep?
Center to center from the knob/lever to the cylinder is 3-5/8 inches (92mm), and lever to thumbturn is 2-7/16 inches (62mm). Those are the figures to check against an existing door prep if you are swapping into a door already cut for a mortise lock. The case pocket needs to take a 5-7/8 x 4 x 15/16 inch steel case with an 8 x 1-1/4 inch armored front.
15) I need an electrified mortise lock but not a double cylinder function. What else is there?
Two straightforward alternatives we carry: the Schlage L9092EU with 03A trim is an electric lock/unlock outside lever mortise lock, keyed outside only, with request to exit and 12/24VDC operation for 1-3/4 inch doors, a corridor function rather than both grips locking. The Command Access ML190 Series is a motorized storeroom-function mortise lock with field selectable EL/EU operation on 24VDC, so you choose fail safe or fail secure in the field like the ML20932 does. Pick by function first: double cylinder both grips lock is unusual, and most openings are served by a corridor or storeroom function.
16) Is a wired electrified mortise lock like this the right call, or should I be looking at a standalone electronic lock?
The ML20932 is a wired, access-control-driven lock: it needs power run to the door through a hinge or door loop, and it is controlled by a panel or card reader. That is the right approach when you want central control, audit at the panel, and RX monitoring. If you cannot get power to the door, a standalone lock is easier to install. We carry the BEST 45HZ EZ keypad mortise lock with key override, the Alarm Lock DL3500CR Trilogy Grade 1 classroom mortise with 300 user codes, and the TownSteel FME-2000 Grade 1 RFID mortise lock for 1-3/4 inch doors. Standalone means no wiring, but no live lock/unlock from a panel.
17) Is this lock heavy duty enough for a high traffic entrance or a school corridor?
The ML2000 is a heavy-gauge steel Grade 1 mortise lock per ANSI/BHMA A156.13 Series 1000, Operational and Security Grade 1, and it has been cycle tested to 14.5 million cycles. Grade 1 is the top commercial grade and the level normally specified for schools, hospitals, and public entrances. The two-piece latchbolt has an anti-friction insert, which cuts the force needed to close the door on an opening that gets slammed all day.
18) Does the ML20932 need a separate deadbolt, or is one built in?
A deadbolt is in the lock case: one-piece stainless steel, 19/32 x 1-1/4 inches with a 1 inch throw, alongside the 3/4 inch latchbolt and the 9/16 inch deadlatch. No separate auxiliary deadbolt is needed. If you only want a deadbolt on an opening and no latching lock, that is a different part, such as the Sargent 4874 double cylinder mortise deadbolt on a 2-3/4 inch backset.
19) If the opening does not need electrification, what mechanical mortise lock covers the same Grade 1 duty as the ML20932?
For a purely mechanical Grade 1 mortise on a 1-3/4 inch door, the Cal-Royal NM8080 storeroom lockset with interchangeable core option or the NM8050 office/entrance lockset with auxiliary deadlatch both apply, and the Accentra 8805FL 8800 Series storeroom lock is a Grade 1 mortise with an Arcadia lever. The Corbin Russwin ML20932 shares the Grade 1 level and the 1-3/4 inch door thickness but adds Fail Safe or Fail Secure electrified operation and optional request-to-exit monitoring, which those mechanical locks do not carry.
20) For a behavioral health or anti-ligature opening, is the ML20932 the right mortise lock?
For anti-ligature trim, the TownSteel MRX-L-01 and MRX-A-01 are Grade 1 heavy duty ligature resistant passage mortise locksets for 1-3/4 inch doors, 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. The Corbin Russwin ML20932 is a Grade 1 electrified lever lockset supplied with the CS-Citation lever, so it is the choice when the opening needs Fail Safe or Fail Secure access control rather than passage-only ligature resistant trim.
21) What is the difference between the ML20932 and a standalone keypad mortise lock like the BEST 45HZ or Schlage CO-100?
The BEST 45HZ EZ Series is an electronic keypad mortise lock with key override, and the Schlage CO-100 is a standalone electronic mortise lock with a keypad reader in privacy function, Grade 1 heavy duty for a 1-3/4 inch door. Both manage credentials at the door itself. The Corbin Russwin ML20932 is a wired Grade 1 electrified mortise lockset that is switched Fail Safe or Fail Secure from an external system, uses an L4 keyway cylinder or ships less cylinder, and can report door status through optional request-to-exit monitoring.
22) Is a Hager 3800 Series or Schlage PM010 mortise lock an acceptable substitute for the ML20932 on an access controlled door?
No. The Hager 3810S and 3810E are Grade 1 passage mortise locks with a 2-3/4 inch backset, the 3850E is an office function non-keyed lock, and the Schlage PM010 is a Grade 1 non-keyed passage latch mortise lock for a 1-3/4 inch door. None of those secure the opening electrically. The Corbin Russwin ML20932 is an electrified lever lockset ordered Fail Safe or Fail Secure with optional request-to-exit monitoring, which is what an access controlled opening requires.
23) Can I standardize a whole building on the ML2000 Series if different doors need different functions?
Largely, yes. The ML2000 multi-function lockbody covers 12 functions from a single ML2054 body, so a facility can stock fewer lock bodies and configure what each opening needs. Trim also runs across the series, including Museo, Vineyard, and Behavioral Health BHSS/BLSS designs, plus status indicator options on sectional and escutcheon trim for locked/unlocked visibility. Keying can stay on one Corbin Russwin system across the openings.
24) For a dormitory or corridor opening, how does the Sargent 7925 compare to the Corbin Russwin ML20932?
The Sargent 7925 is a Grade 1 heavy duty corridor/dormitory function mortise lock from the 7900 Series with rose trim and a single cylinder deadbolt. The Corbin Russwin ML20932 is a Grade 1 mortise electrified lever lockset with a double cylinder, both-grips-lock function, available with A rose, B rose or N escutcheon trim and Fail Safe or Fail Secure operation. The Sargent unit is mechanical with a thumbturn-side deadbolt; the ML20932 requires key control from both sides and power to the door.
25) Which mortise lock should I order if I need a lock body only rather than a complete electrified lockset?
For a lock body alone, the BEST 45H Series heavy duty mortise lock body in public entrance function is field reversible, and the 45HCA series is offered in intruder function; the Baldwin 6301 and 6310 mortise lock bodies use a 2-1/2 inch backset for entry/apartment and entry/storeroom. The Corbin Russwin ML20932 ships as a complete Grade 1 electrified lever lockset with CS-Citation lever, chosen rose or escutcheon trim, and a 2-3/4 inch backset, so it is not the part to order when only the case is being replaced.
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Does the Corbin Russwin ML20932-CSA-626-SAF come with a warranty?
Absolutely. The Corbin Russwin ML20932-CSA-626-SAF is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
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