Corbin Russwin ML20915 Grade 1...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,539.04
$901.88
Corbin Russwin ML20915 No Cylinder Override, Both Grips Lock, Mortise Electrified Lever Lockset, RW-Regis (Wrought) Lever

Corbin Russwin ML20915 Grade 1 No Cylinder Override, Both Grips Lock, Mortise Electrified Lever Lockset, RW-Regis (Wrought) Lever

(No reviews yet) Write a Review

Model: ML20915-RWA-626-SAF
From the ML2000 Series Collection
$1,539.04
$901.88
Selected Available Knob/Lever Style is
Selected Rose/Escutcheon is
Selected Finish is

In Stock (leaves warehouse same day if ordered before 3pm ET)

$1,539.04
$901.88
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks
You may also like

Corbin Russwin ML20915-RW Mortise Electrified Lever Lockset, Both Grips Lock, No Cylinder Override, Regis Wrought Lever

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

The Corbin Russwin ML20915-RW is a heavy-duty mortise electrified lever lockset from the ML2000 Series, engineered to meet the rigors of high-traffic, abusive environments. Featuring the Regis (Wrought) lever design and a no-cylinder-override configuration, this lockset locks both grips simultaneously upon energization, delivering precise access control for demanding commercial openings. Built to ANSI/BHMA A156.13 Series 1000 Operational and Security Grade 1 standards, it accommodates door thicknesses from 1-3/8" to 4" with a standard backset of 2-3/4" and a 3/4" latchbolt throw. UL listed, UL10c compliant, and rated for fire doors up to and including 3-hour ratings, this lockset integrates seamlessly with access control platforms and Corbin Russwin key systems including the patented Access 3® and Pyramid systems.

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
  • Behavioral Health and Secure Care Facilities
  • Retail and Hospitality Establishments
  • Industrial and High-Security Facilities

Why Choose Corbin Russwin Quality?

Corbin Russwin ML2000 Series mortise locksets are constructed of heavy-gauge steel and engineered to exceed ANSI/BHMA A156.13 Series 1000 Operational and Security Grade 1 requirements, ensuring durability and longevity in the most demanding commercial environments. The ML20915-RW 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 delivers professional-grade performance where dependable access control 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 ML20915-RWA-626-SAF – Frequently Asked Questions

1) What is the difference between the fail safe and fail secure versions of the Corbin Russwin ML20915?
Both are ordered off the same ML20915 electrified mortise lockset, and the function you pick decides what happens when power drops. Fail safe unlocks on loss of power, which is what you want on a stair or egress-side opening where people have to get out and back in during an alarm. Fail secure stays locked on loss of power, which is the usual choice for a server room, supply room, or tenant suite door where security has to hold. Both functions are offered in 626 satin chrome and 630 satin stainless steel, with or without request-to-exit monitoring.
2) Will the ML20915 mortise lock fit a 1-3/4 inch door with a 2-3/4 inch backset?
That is exactly the standard prep for it. The ML20915 is built for 1-3/4 inch doors with a 2-3/4 inch backset, which is the normal commercial hollow metal or wood door prep, and the description notes thicknesses from 1-3/8 inch up to 4 inch are accommodated. The lock case itself is 5-7/8 x 4 x 15/16 inches, so a standard ANSI mortise pocket takes it.
3) Can I reuse my existing mortise strike, or do I need to replace the frame prep?
The ML20915 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 throws 3/4 inch. If your frame already has a standard ANSI mortise strike cutout at a 2-3/4 inch backset, the new strike drops into the same prep. Where a non-ANSI or a deeper-lip strike is in the frame today, check the lip-to-center against 1-1/8 inch before you pull the old one, because lip projection is what governs whether the latch catches cleanly.
4) What does "no cylinder override, both grips lock" actually mean for how this lock operates?
On the ML20915 there is no key cylinder to override the electronics. When the lock is energized, both the inside and outside grips lock at once, so the opening is controlled entirely by the access control system and not by a key. Plan on a credential reader or a release at the door, because there is no mechanical key path back in. If you need a key override on an electrified mortise, choose a different ML20900 function with a cylinder.
5) Is this mortise lockset approved for a 3-hour fire rated door?
Yes. The ML20915 is UL and cUL listed and meets UL10C positive pressure, rated for fire doors up to and including 3-hour, covering a single door up to 4 ft by 10 ft or a pair up to 8 ft by 10 ft. It also meets ANSI/BHMA A156.13 Series 1000 Operational and Security Grade 1 and ADA A117.1, plus California State Fire Marshal and windstorm/hurricane certification.
6) What are my alternatives if I need an electrified mortise lock but not the Corbin Russwin ML20900?
Two close options we carry. The Schlage L9092EU electric unlock mortise lock, keyed outside with request-to-exit, runs 12/24VDC on 1-3/4 inch doors in corridor function, so it gives you a key override that the ML20915 deliberately does not have. The Command Access ML190 Series motorized mortise lock is field selectable between fail safe (EL) and fail secure (EU) on 24VDC in storeroom function, which is handy when the spec is not settled yet. BEST also offers the 45HW wired electromechanical mortise lock in 12V/24V.
7) I need access control on this door but I do not have power run to it. What should I look at instead?
The ML20915 is a wired electrified lock, so it needs power and a panel connection at the opening. If pulling wire is off the table, a standalone or wireless mortise lock is the move: the Alarm Lock DL3500CR Trilogy keypad mortise lock is Grade 1 with 300 user codes in classroom function, the Dormakaba PowerPlex P2066 mortise lock needs no batteries or wiring for power, and the Schlage LEMD-GRW is a Grade 1 ENGAGE wireless mortise lock with a 125kHz prox reader.
8) What is the closest equivalent to the Corbin Russwin ML20915 electrified mortise lock from another manufacturer?
The Schlage L9092EU with 03A trim is the nearest match: it is a heavy duty electrically controlled mortise lock that locks and unlocks the outside lever, is keyed outside, includes request to exit (RX), runs on 12/24VDC, and fits 1-3/4 inch doors. The ML20915 is a Fail Safe/Fail Secure electrified mortise lockset with a 2-3/4 inch backset on 1-3/4 inch doors, with request-to-exit monitoring available as an ordering option. The principal difference is grip behavior: the ML20915 locks both grips on energization and has no cylinder override, where the Schlage controls the outside lever only and is keyed.
9) Is there an electrified mortise lock that can be set to fail safe or fail secure in the field instead of ordering the function?
Yes. The Command Access ML19092-M is a motorized mortise lock with field selectable EL/EU operation running on 24VDC, so one lock body covers both modes after it ships. The Corbin Russwin ML20915 is ordered as either Fail Safe or Fail Secure, and also offers a request-to-exit option and a choice of rose or escutcheon trim with the Regis wrought lever.
10) What should I use instead of the ML20915 if the opening needs a keyed cylinder override?
The ML20915 is configured with no cylinder override and locks both grips when energized. For an electrified mortise opening that keeps a key override, the Schlage L9092EU with 03A trim is keyed on the outside and controls the outside lever electrically on 12/24VDC, and the BEST 45HZ EZ Series electronic keypad mortise lock includes a key override function. Both are mortise-prepped like the ML20915.
11) Should I order request-to-exit monitoring on an electrified mortise lock?
Add RX when the access control panel or alarm needs to know someone left through the door from the secure side, which is common on monitored perimeter doors, stair doors, and anywhere a door forced or door held alarm has to be suppressed on legitimate egress. Both the fail safe and fail secure ML20915 are offered with RX or without it, in either finish, so it is a checkbox at order time rather than a different lock. Skip it if the panel only cares about the credential side.
12) What trim and finish options come with the RW Regis lever?
The Regis wrought lever is the standard grip here, and you pick the escutcheon arrangement plus finish. Trim options are A rose, M escutcheon, or N escutcheon, in 626 satin chrome or 630 satin stainless steel. Trim is thru-bolted for alignment and security. If the rest of a building runs 630 stainless on levers and push plates, order 630 and the openings match.
13) How durable is this lock for a high traffic door like a main corridor or a school entry?
Cycle testing on the ML2000 mortise platform is verified at 14.5 million cycles (Verification ID V875753), well past the ANSI/BHMA Grade 1 minimum, with a heavy-gauge steel lock case and a steel substrate throughout. The two-piece anti-friction latchbolt also lowers the closing force needed, which matters on a door with a closer that gets pulled hundreds of times a day.
14) Will this lock work with the key system already in my building?
The ML2000 mortise platform works with new or existing Corbin Russwin key systems, including the patented Access 3 and Pyramid systems, and the lock bodies accept most other manufacturers' cylinders. Note though that the ML20915 configuration is a no-cylinder-override lock, so keying applies to the series generally rather than to this function, which has no key access. For a keyed electrified opening in the same building, specify a cylinder-equipped ML20900 function and key it into the existing system.
15) Is the ML20915 a mortise lock or can I get the same function in a cylindrical lock?
This is a mortise lock, meaning a rectangular pocket has to be cut into the door edge for the 5-7/8 x 4 x 15/16 inch case. A mortise gives you a deeper case, the 1 inch stainless deadbolt, and the 9/16 inch deadlocking auxiliary latch, which is why it is specified on high abuse and high security openings. If the doors are only bored for a cylindrical lock and you do not want to re-prep, you need a cylindrical product instead, such as the Schlage PC Series, not this one.
16) What center-to-center spacing do I need for the trim and thumbturn prep on an ML2000 mortise door?
Spacing on the ML2000 mortise prep is 3-5/8 inches (92mm) center to center from the knob or lever to the cylinder, and 2-7/16 inches (62mm) from the knob or lever to the thumbturn. The armored front measures 8 x 1-1/4 inches. Those are the numbers to check against an existing door if you are dropping this into a prep that was cut for another brand's mortise lock.
17) I manage a campus with a mix of mechanical and electrified openings. Can I standardize on one lock body?
Largely yes on the mechanical side. The ML2000 platform is multi-function: 12 functions are configurable from a single ML2054 lock body, so storerooms, offices, and classrooms come off one part number with different trim and cylinder arrangements. The ML20915 is the electrified member of that family for access controlled doors, so the prep, backset of 2-3/4 inches, and Regis lever trim stay consistent across the building while only the access controlled openings carry the electrified lock.
18) What is a simpler alternative to the ML20915 if the door does not need access control wiring?
For a mechanical mortise opening, the Accentra 8805FL is a Grade 1 storeroom mortise lock in the 8800 Series, and the Cal-Royal NM8080 is a heavy duty Grade 1 storeroom mortise lockset with an interchangeable core option for 1-3/4 inch doors. Both are strictly mechanical, where the ML20915 is an electrified lockset that changes state with power applied and can be ordered with request-to-exit monitoring.
19) Can a standalone electronic mortise lock replace the ML20915 on an access-controlled door?
It changes the system, not just the lock. Standalone units such as the Alarm Lock DL3500CR Trilogy, a Grade 1 classroom-function electronic mortise lock with 300 user codes for 1-5/8 to 1-7/8 inch doors, or the Schlage CO-100-MS-40-KP, a Grade 1 heavy duty keypad mortise lock for 1-3/4 inch doors, carry their own credentials on the door. The Corbin Russwin ML20915 has no keypad or reader of its own; it is a Fail Safe/Fail Secure electrified lockset driven by a separate access control panel, so the credential decision stays in the head end.
20) Which wireless mortise locks compete with the ML20915 for a networked opening?
The Schlage Electronics LEMD-GRW is a Grade 1 ENGAGE Series wireless mortise lock with a 125kHz proximity reader and a 3 hour fire rating, and the Alarm Lock DL1300NW Trilogy Networx is a wireless electronic mortise lock with a keypad for Adams Rite deadlatches. Those carry the reader at the door over a wireless link. The Corbin Russwin ML20915 is a hardwired Fail Safe/Fail Secure electrified mortise lockset with optional request-to-exit monitoring, so it needs a door cord or transfer hinge and a panel output.
21) Is the BEST 45HW wired mortise lock a substitute for the ML20915?
It is the closest cross-brand electrified mortise body in the group aside from Schlage. The BEST 45HW is a heavy duty wired electromechanical mortise lock with 12V/24V operation. The Corbin Russwin ML20915 is a Grade 1 electrified mortise lockset with a 2-3/4 inch backset, 3/4 inch latchbolt, ANSI straight lip strike with 1-1/8 inch lip to center, and the Regis wrought lever on rose or escutcheon trim. Confirm the voltage your panel supplies and the trim family already on the adjacent doors before swapping brands.
22) What looks like a substitute for the ML20915 but will not work on an access-controlled door?
Non-keyed and dummy mortise trims share the mortise pocket but have no controlled locking at all. The Schlage L0170 is a Grade 1 half dummy mortise trim, the Schlage PM010 is a Grade 1 non-keyed passage latch mortise lock, and the Falcon MA101 is a Grade 1 heavy duty mortise passage lock. None of them lock. The Corbin Russwin ML20915 is a Fail Safe/Fail Secure electrified lockset that locks both grips on energization.
23) For a behavioral health opening, is the ML20915 the right choice or should I look at anti-ligature trim?
If the opening requires ligature-resistant trim, 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 arch trim, and the Marks USA 5PDN is a Grade 1 hospital passage push/pull paddleset that is ligature resistant and ADA compliant. Those are passage-only. The Corbin Russwin ML20915 is a Grade 1 electrified mortise lockset with the Regis wrought lever, and the ML2000 series is offered with Behavioral Health BHSS and BLSS trim designs.
24) For a classroom security opening, what is the alternative to the ML20915?
Classroom-specific options include the Cal-Royal NM8070, a heavy duty Grade 1 classroom mortise lockset with auxiliary deadlatch for 1-3/4 inch doors, the Marks USA LA318GJ classroom security indicator mortise lockset, Grade 1 on 1-3/4 inch doors with an ANSI strike and steel escutcheon, and the TownSteel FME-4000, a Grade 1 heavy duty electronic intruder classroom mortise lockset with RFID. The Corbin Russwin ML20915 is an electrified Fail Safe/Fail Secure lockset controlled from a panel rather than a dedicated classroom-security function, though the ML2000 series offers status indicator trim for locked and unlocked visibility.
25) Will a mortise lock rated for 1-5/8 to 1-7/8 inch doors cover the same openings as the ML20915?
Not across the full range. The Alarm Lock DL2700CR and DL3500CR Trilogy electronic mortise locks are listed for 1-5/8 to 1-7/8 inch doors. The Corbin Russwin ML20915 is built around 1-3/4 inch doors as standard and the ML2000 series accommodates thicknesses from 1-3/8 inch to 4 inch, so on thick or unusually thin leaves the Corbin Russwin covers openings those units do not.
26) Is a Grade 2 electronic mortise lock an acceptable stand-in for the ML20915?
Only if the spec allows Grade 2. The Schlage Electronics LEBMB-ADD mobile-enabled mortise lock is BHMA Grade 2 with a 3 hour fire rating for 1-3/4 inch doors, and the Dormakaba LX-I-M002 Saffire RFID mortise lockset is BHMA Grade 2. The Corbin Russwin ML20915 is built to ANSI/BHMA A156.13 Series 1000 Operational and Security Grade 1, so on a drawing that calls Grade 1 those two do not answer it.
27) Are the Baldwin 6301 and 6310 mortise locks interchangeable with the ML20915?
No. The Baldwin 6301 lever-by-lever entry/apartment and 6310 entry/storeroom mortise bodies use a 2-1/2 inch backset. The Corbin Russwin ML20915 uses a 2-3/4 inch backset, so the mortise pocket and lever-to-edge dimension do not line up without repreparing the door.
28) Do I have to order handed, or is there a field reversible option like the ML20915?
The Corbin Russwin ML20915 is field reversible, with a quick reversible latchbolt that re-hands without disassembling the lock case. Among peers, the BEST 45HCAC heavy duty public entrance mortise body and the Falcon MA101 Grade 1 heavy duty passage lock are also field reversible, while the Baldwin 6310190RRLS is supplied as a right hand reverse unit.
29) I need a mortise deadbolt only, not a lockset. Is the ML20915 the wrong part?
Yes, for deadbolt-only work look elsewhere. The Sargent 4874 is a double cylinder mortise deadbolt with a 2-3/4 inch backset, the Kaba Ilco 185 Series is a no-handing mortise deadbolt, and the Alarm Lock DL4500 is a Grade 1 electronic mortise deadbolt with 2,000 user codes and a privacy keypad for 1-5/8 to 1-7/8 inch doors. The Corbin Russwin ML20915 is a full electrified lever lockset with latch and lever trim, though its lock case does carry a 1 inch stainless steel deadbolt.
How fast can I get the Corbin Russwin ML20915-RWA-626-SAF delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Corbin Russwin ML20915-RWA-626-SAF come with a warranty?
Absolutely. The Corbin Russwin ML20915-RWA-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 ML20915-RWA-626-SAF?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Corbin Russwin ML20915-RWA-626-SAF from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.

Videos

!