Corbin Russwin CL33903 Grade 1...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,455.03
$734.18
Corbin Russwin Corbin Russwin CL33903 Grade 1 Fail Safe Lever, Electrified Cylindrical Lever Lock, 12VAC/DC COR-CL33903-KEYED-12AD

Corbin Russwin CL33903 Grade 1 Fail Safe Lever, Electrified Cylindrical Lever Lock, 12VAC/DC

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Model: CL33903 NZD 626 12AD
$1,455.03
$734.18
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  • Corbin Russwin ADDER-CORBIN RUSSWIN-[KEYING]=KD - Keyed Different ADDER-CORBIN RUSSWIN-[KEYING]=KD - Keyed Different
  • Corbin Russwin ADDER-CORBIN RUSSWIN-[KEYING]=KA - Keyed Alike ADDER-CORBIN RUSSWIN-[KEYING]=KA - Keyed Alike

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

$1,455.03
$734.18
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Corbin Russwin CL33903-KEYED-12AD Grade 1 Fail Safe Electrified Cylindrical Lever Lock with Mechanical Cylinder Override, 12VAC/DC

Remote Locking and Unlocking with Life Safety Code Compliance for High-Security Commercial Applications

The Corbin Russwin CL33903-KEYED-12AD is a Grade 1 Fail Safe Electrified Cylindrical Lever Lock engineered for demanding commercial environments where remote access control and life safety compliance are essential. Designed for doors 1-3/4" to 2" thick with a 2-3/4" backset, this lock features a self-contained integral solenoid operating on 12VAC/DC (250mA hard-wired) and utilizes the proven CL3300 Series Cylindrical Lockset platform with Lever Release™ Mechanism. In Fail Safe mode, power-on locks the outside lever while power-off unlocks it, ensuring compliant egress at all times. A conventional 6-pin cylinder with mechanical override and two included nickel silver keys provide reliable backup access.

Professional Features & Benefits

  • Grade 1 cylindrical lockset per ANSI/BHMA A156.2 Series 4000, Grade 1
  • Lever Release™ design for vandal resistance — outside lever rotates freely when locked
  • EZ-Install components significantly reduce installation time
  • Independent return springs prevent lever sag
  • 4 solid cast lever options (Armstrong, Newport, Princeton, Frascati)
  • Anti-rotational through-bolts at 6 and 12 o'clock positions
  • Accommodates 6 or 7-pin conventional cylinders and all keying levels
  • CL3352 Classroom Intruder function: double-cylinder lockset, always-free egress
  • Available with MicroShield® antimicrobial coating (suffix option code "C")
  • CL33900 electrified option: fail safe and fail secure, 12 or 24VAC/VDC
  • ElectroLynx® 8-pin connector on all electrified products
  • Seven-year limited warranty (two-year for electrified)

Technical Specifications

  • Grade: ANSI/BHMA A156.2 Series 4000, Grade 1
  • Handing: Non-handed (except FZD trim)
  • Door Thickness: 1-3/4" (44mm) 2" (51mm) standard; optional over 2" 2-1/4" (57mm)
  • Backset: 2-3/4" (70mm) standard; optional 3-3/4" (95mm) and 5" (127mm)
  • Latchbolt: Stainless steel, 1/2" (13mm) throw; optional 3/4" (19mm) fire latch
  • Auxiliary Latchbolt: Deadlocking — prevents manipulation when door is closed
  • Lock Chassis: Steel, zinc dichromated for corrosion resistance
  • Front: Wrought brass, bronze, or stainless steel, 2-1/4" x 1-1/8"
  • Strike: Wrought brass or stainless steel ANSI curved lip, 4-7/8" x 1-1/4" x 1-1/4" lip to center
  • Cylinder: Brass, 6-pin L4 keyway, 0-bitted standard
  • Electrified Voltage: 12VAC/DC or 24VAC/DC (CL33900 Series)
  • Electrified Current: 250mA @ 12VAC/VDC; 150mA @ 24VAC/VDC, continuous duty solenoid
  • Certifications: ANSI/BHMA A156.2 Grade 1; UL-cUL listed; ANSI A117.1 Accessibility; California State Fire Marshal
  • Warranty: Seven-year limited (two-year for CL33900 electrified)

Professional Applications

  • Stairwell Towers and Controlled Egress Points
  • Tenant Spaces Requiring Remote Access Control
  • Pharmacies and Controlled Substance Storage Areas
  • Computer Rooms and High-Security Areas
  • Healthcare Facility Access Control
  • Educational Institution Security Systems
  • Government and Municipal Buildings

Why Choose Corbin Russwin Quality?

Corbin Russwin electrified cylindrical lock products deliver professional-grade reliability built on the proven CL3300 Series platform with Lever Release™ Mechanism, rated Grade 1 for the most demanding commercial applications. The CL33903-KEYED-12AD features a self-contained integral solenoid, mechanical cylinder override, and ElectroLynx® quick-connect compatibility, ensuring both installation efficiency and long-term operational dependability. Engineered for commercial environments where increased security and life safety code compliance are non-negotiable requirements.

Manufacturer Resources

Corbin Russwin Condensed Catalog

Product Specs

Subcategory:
Cylindrical Locks
Product Group:
Mechanical Locks
Series:
CL33900 Series
Grade:
Grade 1
Keyed Function:
Single Cylinder
Standard Cylinder:
Conventional Cylinder
Standard Latch:
686F17: Deadlatch - Square corner front, 2-1/4" x 1-1/8", 2-3/4" backset
Standard Strike:
217L13: ANSI Curved Lip 1-1/4" Lip Length
Power:
Hard Wired (250mA)
Product Subgroup:
Bored Locksets
Product Type:
Leversets
Keyed:
Yes
Commercial/Residential:
Commercial
Electronic:
Yes
Lock Type:
Cylindrical
Battery Operated:
No
Handle Type:
Lever
Product Attribute:
Cylindrical Locks
Product Model:
CL33903
Product Voltage:
12VAC/DC
Door Hand Direction:
Non-Handed
Door Thickness Range:
1-3/4" to 2"
Product Category:
Mechanical Locks
Backset (Distance):
2-3/4"
Department:
Door Hardware

Corbin Russwin CL33903 NZD 626 12AD – Frequently Asked Questions

1) What happens to the Corbin Russwin CL33903 lever lock when the power goes out?
Power off unlocks the outside lever. The CL33903 is the fail safe version: energize it and the outside lever locks, drop power and the lever is free, so people can always get out and back through the opening. That is what you want on a stairwell re-entry door or a controlled egress point tied to a fire alarm. If you need the opposite behavior (locked when power drops, so the room stays secured through an outage), you want the fail secure version of the CL33900 Series instead, not this one.
2) What voltage and current does the Corbin Russwin CL33903 draw, and can I run it off a battery?
12VAC or 12VDC, 250mA, hard wired to a continuous duty solenoid built into the chassis. It is not battery operated, so it needs a power supply and transfer hinge or door loop run to the door. If your panel and supply are already on 24 volts, the CL33900 Series has a 24VAC/VDC version drawing 150mA, which is the one to order instead of rewiring the supply.
3) Will the CL33903 latch into the strike that is already in my frame?
The lock comes with a 686F17 deadlatch, square corner front measuring 2-1/4 by 1-1/8 inches on a 2-3/4 inch backset, and a 217L13 ANSI curved lip strike with a 1-1/4 inch lip length. Standard latchbolt throw is 1/2 inch. If your frame already has an ANSI 4-7/8 inch strike prep, the supplied strike drops straight in. If your existing frame is cut for a smaller T-strike, plan on either the new strike or a frame repair. On a fire rated opening the series also offers a 3/4 inch throw fire latch.
4) Can I key the CL33903 into my existing Corbin Russwin master key system?
Yes, and there are four ways to order it. Standard is a conventional 6-pin brass cylinder, L4 keyway, 0-bitted, with two nickel silver keys and mechanical override so a key still gets you in with the power off. If you run large format interchangeable core, order CL6 or CL7 (less core, 6-pin or 7-pin Corbin Russwin) and drop your own cores in. If your locksmith is supplying the cylinders, order LC for less conventional cylinder. Keying is specified as KD keyed different or KA keyed alike when several doors need to run on one key.
5) Is the Corbin Russwin CL33903 Grade 1, and is it ADA and fire marshal approved?
Grade 1 to ANSI/BHMA A156.2 Series 4000, UL-cUL listed, compliant with ANSI A117.1 for accessibility, and listed by the California State Fire Marshal. Grade 1 is the top cylindrical rating and the level most institutional and government specs call for, so this satisfies a heavy traffic spec on healthcare, education, and municipal openings without a substitution request.
6) What is the closest Grade 1 cylindrical lever lock to the Corbin Russwin CL33903 if the opening does not need electrified control?
The Corbin Russwin CL33903 is a Grade 1 cylindrical lever lock that is electrified and hard wired at 250mA on 12VAC/DC, so it only makes sense where a wire reaches the door. For a mechanical Grade 1 cylindrical lever on the same class of commercial opening, the Falcon T101 is a Grade 1 heavy duty cylindrical passage lever lock, and the Falcon K101 is a Grade 1 passage cylindrical lock rated for 1-3/8 inch to 2-1/4 inch doors with a fire rating. Both are passage function, meaning no key and no lockdown, so they suit an opening that needs the same grade of chassis but no access control at all.
7) Which keyed Grade 1 cylindrical lever should be used on a classroom door instead of a fail safe electrified lock?
A fail safe lock unlocks the outside lever when power drops, which is the opposite of what a classroom lockdown wants. For a keyed mechanical classroom opening, the Dexter C1000 is offered in a Grade 1 Classroom function with a clutching keyed lever for 1-3/8 inch to 1-3/4 inch doors, and in a Grade 1 Classroom Security function on the same door thickness range, which allows the door to be secured from inside the room. The Corbin Russwin CL33903 stays the choice where the opening is controlled remotely from an access control system rather than by key at the door.
8) Is a keypad lever lock a substitute for the Corbin Russwin CL33903 on a controlled tenant door?
They solve access differently. The CL33903 is a hard wired lock at 250mA on 12VAC/DC, so the lock state is driven from a panel elsewhere in the building and a mechanical cylinder override with a key is the backup. A keypad lever such as the Delaney LP250 electronic keypad leverlock is Grade 2 and is credentialed at the door itself, and the Lockey 2835 is a mechanical pushbutton keyless lever with passage function for doors 1-3/16 inch to 2 inch thick, with no wiring at all. Choose the keypad route where no wire reaches the opening and the CL33903 where a central system has to lock or release the door.
9) Is the Accentra 107S Schlage cylinder adapter kit usable with the Corbin Russwin CL33903?
No. The Accentra 107S is a cylinder adapter kit made for Yale hardware, so it is not a way to put a Schlage keyway into a Corbin Russwin chassis. The CL33903 takes a conventional cylinder, supplied as a 6-pin standard, and is also offered less conventional cylinder or less core for a Corbin Russwin 6-pin or 7-pin large format interchangeable core, which is how the lock is brought onto an existing Corbin Russwin key system.
10) Do I have to order the Corbin Russwin CL33903 handed for a left or right hand door?
No handing to specify. The CL33903 is non-handed, so one part covers left and right hand openings and you can stock a single lock across a building. The only exception in the family is FZD trim. Levers install with anti-rotational through-bolts at the 6 and 12 o'clock positions and independent return springs to keep the lever from sagging under traffic.
11) Can someone break the lock by forcing the outside lever on a CL33903?
The outside lever rotates freely when the lock is secured. That is the Lever Release mechanism: torque applied to a locked lever spins it instead of transferring load into the chassis, so a kicked or wrenched lever does not break the lock open. The steel chassis is zinc dichromated for corrosion resistance, and the auxiliary latchbolt deadlocks the main latch when the door is closed so it cannot be shimmed or carded.
12) What is the difference between the CL33903 electrified lever and a Grade 2 commercial lever like the Hager 2525?
Two different duty classes for two different openings. The CL33903 is Grade 1 to A156.2 Series 4000 with an integral solenoid for remote lock and unlock from an access control panel. The Hager 2525 is a Grade 2 mechanical entry lever for 1-3/8 to 2 inch doors, key operated only, with nothing to wire. Grade 2 is fine for tenant suites and low traffic interior openings; put Grade 1 on stairwells, pharmacies, computer rooms, and anything on a card reader. If you want Grade 1 without electrification, the Falcon K101 is Grade 1 heavy duty for 1-3/8 to 2-1/4 inch doors, though that one is passage function with no keying.
13) How does the CL33903 connect to the access control wiring, and does it use a quick connect?
All Corbin Russwin electrified products use the ElectroLynx 8-pin connector, so the lock plugs into a matching ElectroLynx electric hinge or door loop instead of being spliced in the door. That is what keeps the install to a plug rather than a wire nut in the edge prep. The lock itself carries a self-contained integral solenoid, so no separate power transfer module is needed inside the chassis, and EZ-Install components cut the bench time on the door.
14) What Grade 2 storeroom lever can be used on a door that does not justify the CL33903?
A storeroom function keeps the outside lever locked at all times and requires a key to enter, which covers a plain locked closet or supply room without any wiring. The Cal-Royal AG05 is a Grade 2 storeroom lever lockset with a deadlocking latchbolt for 1-3/8 inch to 1-3/4 inch doors, and the Hager 2580 is a Grade 2 storeroom cylindrical lock with a Withnell lever for 1-3/8 inch to 2 inch doors. The Corbin Russwin CL33903 differs in that it is a Grade 1 electrified lock whose outside lever is released remotely.
15) Can a passage or dummy lever be paired with the Corbin Russwin CL33903 on the inactive leaf of a pair of doors?
Yes, and the grade should be matched so the two leaves feel the same in the hand. The CL33903 is a Grade 1 cylindrical lever. On a leaf that only needs a pull with no latch, the BEST 9K Series 1DT is a Grade 1 heavy duty single dummy trim cylindrical lever, and where the leaf needs a latching but unlocked lever, the Design Hardware X75 is a Grade 1 passage lever lockset for 1-3/4 inch doors. Both are non-keyed, so neither provides any security on that leaf.
16) What lever lock suits an institutional room where a key must work from both sides rather than a fail safe release?
An asylum or institution function is keyed on both sides, so nobody passes without a key in either direction. The Dexter C1000 is offered in a Grade 1 Asylum F87 function for doors 1-3/8 inch to 2 inch thick. The Corbin Russwin CL33903 is a single cylinder keyed lock whose control comes from the wired fail safe solenoid, so it is the choice where a central system must release the door and the mechanical key is only the override.
17) Do residential grade levers work as a replacement for the Corbin Russwin CL33903 in a commercial building?
They are built for different traffic. The CL33903 is a Grade 1 commercial cylindrical lock. Levers such as the Kwikset 200BRNL Breton passage and the Kwikset 300BRNL Breton privacy are Grade 3 and fit 1-3/8 inch to 1-3/4 inch doors, and the Master Lock RL Series keyed entry lever is Grade 3 entrance function. Those cover interior residential openings; the CL33903 covers a 1-3/4 inch to 2 inch commercial door on a 2-3/4 inch backset with remote control of the outside lever.
18) What entry function lever fits an office door that needs a key but no wiring, next to CL33903 openings elsewhere in the building?
An entry or office function locks the outside lever by button or key and is opened by key from outside. The Falcon B511CP6D is a Grade 2 medium duty cylindrical lever with entry/office function, the Hager 2525 is a Grade 2 commercial cylindrical entry lock with a lever for 1-3/8 inch to 2 inch doors, and the Dexter C1000 is offered in a Grade 1 entry/office function with a clutching keyed lever for 1-3/8 inch to 1-3/4 inch doors. Where the same office must be released from a central system instead, that is the Corbin Russwin CL33903 with its hard wired 12VAC/DC solenoid.
19) Is a Grade 2 lever acceptable in place of the Corbin Russwin CL33903 on a stairwell or high traffic corridor?
The two sit at different points on the ANSI/BHMA scale. The CL33903 is Grade 1 commercial. Common Grade 2 cylindrical levers include the Falcon B101 medium duty passage, the Accentra 5301LN Augusta passage in the 5300 Series, and the Hager 2510 passage lever for 1-3/8 inch to 2 inch doors. Grade 2 sets carry a lower ANSI cycle and strength class than Grade 1, and none of them are keyed or electrified, so on an opening specified Grade 1 with remote release the CL33903 is what meets the drawing.
20) What lever styles and finishes does the Corbin Russwin CL33903 come in?
Three lever designs: Armstrong (AZD), Newport (NZD), and Princeton (PZD), all solid cast. Thirteen finishes, from 626 satin chrome and 630-family brights through 605 bright brass, 606 satin brass, 611 bright bronze, 612 satin bronze, 613 and 613E and 613L oil-rubbed bronzes, 618 bright nickel, 625 bright chrome, 722 black oxidized bronze oil-rubbed, plus BSP black suede and WSP white suede powder coat. If you are matching existing openings in a building, 626 is the usual commercial default and the suede powder coats are the ones that will not match a plated finish.
21) Is the Corbin Russwin CL33903 available with an antimicrobial coating for a hospital?
Yes, MicroShield antimicrobial coating is available on the CL3300 platform, ordered with option code C. On healthcare openings that is worth specifying on any lever getting hand contact all day. The lock is a commercial-duty Grade 1 device and the platform is used on patient areas, pharmacies, and controlled substance storage, where the fail safe behavior also keeps egress compliant.
How fast can I get the Corbin Russwin CL33903 NZD 626 12AD delivered?
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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 CL33903 NZD 626 12AD come with a warranty?
Absolutely. The Corbin Russwin CL33903 NZD 626 12AD 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 CL33903 NZD 626 12AD?
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