Corbin Russwin CLX3355 Grade 1...
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Corbin Russwin Corbin Russwin CLX3355 Classroom Cylindrical Lever Lock COR-CLX3355-KEYED

Corbin Russwin CLX3355 Grade 1 Classroom Cylindrical Lever Lock

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Model: CLX3355 NZD 626
$1,022.09
$607.04
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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

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Corbin Russwin CLX3355-KEYED Classroom Cylindrical Lever Lock | ANSI F84 Grade 1, 1-3/4" to 2" Doors

Heavy-Duty ANSI/BHMA Grade 1 Classroom Security for High-Traffic Commercial Openings

The Corbin Russwin CLX3355-KEYED is a heavy-duty, ANSI/BHMA Grade 1 classroom cylindrical lever lock engineered for demanding commercial and institutional environments. Designed to ANSI function F84 (Classroom), this keyed cylindrical lever lock features a deadlocking latchbolt operated by lever from either side, except when the outside lever is locked by key — at which point the lever handle freewheels for vandal resistance. The outside lever is unlocked by key from outside, while the inside lever remains always free for safe egress. Built for doors ranging from 1-3/4" to 2" in thickness with a 2-3/4" backset, the CLX3355-KEYED is the ideal solution for schools, universities, hospitals, and other high-traffic facilities where security, durability, and aesthetics must coexist.

Professional Features & Benefits

  • ANSI/BHMA Grade 1 cylindrical lock per A156.2 (2022) Series 4000
  • UL Cycle above and beyond: 20 Million Cycles (Verification ID: V875753)
  • Exceeds 3,100 in-lb abusive locked lever torque — 2.6× ANSI requirements
  • Exceeds 1,600 lbs offset lever pull — 8× ANSI requirements
  • Innovative Lever Release™ freewheeling design for vandal resistance
  • Lock chassis design supports all cylinder formats (fixed core to interchangeable core)
  • Patented adjustable push/turn button for easy door thickness adjustment
  • Available with BHSS behavioral health trim and VSL visual status indicators
  • EcoFlex® technology on CLX33900: up to 92% energy reduction (GreenCircle certified)
  • Available with 27 mechanical and 2 electrified functions
  • CLX3352 Classroom Intruder: locking from either side, always-free egress
  • ElectroLynx® 8-pin molex connector on electrified units
  • Ten-year limited mechanical warranty (two-year limited electrical)

Technical Specifications

  • Grade: ANSI/BHMA A156.2 (2022) Series 4000, Grade 1
  • Door Prep: ANSI/SDI A250.14
  • Handing: Non-handed
  • Door Thickness: 1-3/4" 2" (44–51mm) standard; optional 1-3/8" (D138) or over 2" up to 2-1/4" (D214)
  • Backset: 2-3/4" (70mm) standard; optional 2-3/8", 3-3/4", 5"
  • Minimum Stile: 4-1/2" (114mm)
  • Latchbolt: Stainless steel, 1/2" (13mm) throw; optional 3/4" (19mm) deadlocking fire latch
  • Front: Wrought brass, bronze, or stainless steel, 2-1/4" x 1-1/8" standard
  • 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: 12VDC or 24VDC; range 10.2–26.4VDC (CLX33900)
  • Electrified Current: 10mA continuous; 500mA peak @ 12VDC or 24VDC
  • Operating Temperature: -13°F (-25°C) to 151°F (66°C) (electrified)
  • Certifications: ANSI/BHMA A156.2 Grade 1; UL/cUL 3-hour; UL294 (electrified); NFPA 80; ADA A117.1; Windstorm/Hurricane certified
  • Warranty: Ten-year limited mechanical; two-year limited electrical

Professional Applications

  • Schools and Universities (Classroom Security)
  • Healthcare Institutions and Hospitals
  • Commercial Office Buildings
  • Manufacturing and Industrial Facilities
  • Government and Municipal Buildings
  • Heavy-Duty Commercial Interior and Exterior Doors
  • New Construction and Retrofit Projects

Why Choose Corbin Russwin Quality?

Corbin Russwin CLX3300 Series cylindrical lever locks deliver professional-grade reliability backed by UL Cycle testing completed at 20 Million Cycles (Verification ID: V875753), exceeding ANSI/BHMA A156.2 Grade 1 requirements by significant margins — including 2.6 times the abusive locked lever torque standard and 8 times the offset lever pull requirement. Constructed of steel with zinc dichromate treatment for corrosion resistance and protected by a 7 Year Limited warranty, the CLX3355-KEYED is engineered for demanding commercial applications where dependable performance, security, and design flexibility are essential.

Product Specs

Subcategory:
Cylindrical Locks
Product Group:
Mechanical Locks
Series:
CLX3300 Series
Grade:
Grade 1
Duty Level:
Heavy Duty
Keyed Function:
Single Cylinder
Standard Cylinder:
Conventional 6-pin Cylinder, L4 Keyway
Standard Latch:
Deadlatch - Square corner front, 2-1/4" x 1-1/8", 2-3/4" backset
Standard Strike:
ANSI Curved Lip 1-1/4" Lip Length
Warranty:
7 Year Limited
ANSI/BHMA:
F84
Product Subgroup:
Bored Locksets
Product Type:
Leversets
Keyed:
Yes
Commercial/Residential:
Commercial
Function Description:
Deadlocking latchbolt by lever either side, except when key outside locks outside lever. (Lever handle is freewheeling in locked position). Outside lever unlocked by key outside. Inside lever always free.
Lock Type:
Cylindrical
Handle Type:
Lever
Lock Function:
Classroom
Product Attribute:
Cylindrical Locks
Product Model:
CLX3355
Product Function:
Classroom
Door Hand Direction:
Non-Handed
Door Thickness Range:
1-3/4" to 2"
Fire Rating:
Yes
Product Category:
Mechanical Locks
Product Substrate:
Steel, Zinc dichromated for corrosion resistance
Backset (Distance):
2-3/4"
Department:
Door Hardware

Corbin Russwin CLX3355 NZD 626 – Frequently Asked Questions

1) Can I use the Corbin Russwin CLX3355 on a labeled fire door?
The CLX3355 is fire rated, and the description states UL/cUL 3-hour and NFPA 80 for the CLX3300 Series, along with ADA A117.1. The standard latch is a deadlatch with a 2-3/4 inch backset; the series also offers a 3/4 inch throw deadlocking fire latch as an option, which is what some fire openings call for. Door prep follows ANSI/SDI A250.14.
2) How does a classroom function lock actually work when the teacher locks the door?
On the CLX3355, the outside lever is locked and unlocked by key from the outside only. There is no button or turn on the inside. Once locked, the outside lever freewheels rather than staying rigid, and the deadlocking latchbolt stays thrown. The inside lever is always free, so anyone in the room can get out at any time without a key. That's ANSI function F84.
3) Will the CLX3355 work with our existing small format interchangeable core keying system?
Yes, if you order the right cylinder prep. The chassis takes a range of cylinder formats: conventional 6-pin in the L4 keyway as standard, CL6 or CL7 for Corbin Russwin large format IC (6-pin or 7-pin), M08 for SFIC prep that accepts 6 or 7-pin cores of all designs, M69 for Schlage FSIC, or LC to receive it less a conventional cylinder entirely. The less-core options ship without the core so your locksmith pins and installs your own.
4) If I'm ordering a dozen classroom locks for one building, can they all run on one key?
Yes. Keying is a required choice on the CLX3355: KD keyed different is the standard, or KA keyed alike when you want a set of locks to share a key. There's also a free text field for special cylinder or keying requirements, which is where you note a master key system, a specific keyway, or key bitting. The standard cylinder is a conventional 6-pin in the L4 keyway, supplied 0-bitted.
5) Will the CLX3355 fit an aluminum storefront door or a narrow stile?
No. The CLX3300 Series needs a minimum stile of 4-1/2 inches (114mm), which rules out typical narrow stile aluminum entrances. It's a bored cylindrical lock for hollow metal and wood doors with a 2-3/4 inch backset. For a glass front aluminum opening you want narrow stile hardware instead, not this chassis.
6) Our doors are prepped for a 2-3/8 inch backset. Can I still use the CLX3355?
The CLX3355 ships standard with a 2-3/4 inch backset, but the CLX3300 Series lists optional 2-3/8 inch, 3-3/4 inch and 5 inch backsets, so an existing 2-3/8 prep is workable if you call it out on the order. Note the 2-3/4 inch standard latch front is 2-1/4 x 1-1/8 inches with a square corner, and the standard strike is an ANSI curved lip with a 1-1/4 inch lip length. Measure your existing strike lip before assuming the old one carries over.
7) What if my doors are 1-3/8 inch or thicker than 2 inches?
Standard CLX3355 covers 1-3/4 inch to 2 inch doors. Outside that, the CLX3300 Series offers the D138 option for 1-3/8 inch doors and D214 for over 2 inches up to 2-1/4 inches. The series also uses a patented adjustable push/turn button so the lock adjusts across the thickness range. If you have a mix of thicknesses across a building, split the order by suffix rather than assuming one part covers all of them.
8) What's the difference between a classroom lock and a classroom security lock?
A classroom function like the CLX3355 locks only by key from the corridor side, so a teacher has to step into the hallway to secure the door. A classroom security function adds keyed locking from inside the room, so the door can be secured without opening it. ZenSupply carries the Dexter C1000 Series in both: the C1000 Classroom and the C1000 Classroom Security, both Grade 1 clutching lever locks. Corbin Russwin's own answer inside the CLX3300 family is the CLX3352 Classroom Intruder, which locks from either side and keeps egress always free.
9) What else does ZenSupply carry as a Grade 1 classroom lever lock besides the Corbin Russwin CLX3355?
The closest cross-brand equivalent is the Dexter C1000 Series Grade 1 Classroom cylindrical lever lock, a clutching keyed design listed for 1-3/8 inch to 1-3/4 inch doors. That's the split worth noting: the Dexter covers down to 1-3/8 inch as standard while the CLX3355 covers 1-3/4 inch to 2 inch. So on thin older interior doors the Dexter drops in as supplied; on a 2 inch door the Corbin Russwin does. A step down in grade, the Cal-Royal AG03 is a Grade 2 classroom lever in the 6-pin Schlage C keyway with a 2-3/4 inch backset, which matters if your building is already keyed to Schlage C.
10) What is the closest Grade 1 classroom lever lock to the Corbin Russwin CLX3355 from another manufacturer?
The Dexter C1000 Series classroom cylindrical lever lock is the nearest cross-brand match: it is a Grade 1 keyed classroom cylindrical lever lock with a clutching lever, the same function family as the CLX3355, which is an ANSI F84 classroom cylindrical lever lock rated ANSI/BHMA Grade 1. The door range is where they part company. The CLX3355 is built for 1-3/4 inch to 2 inch doors, while the Dexter C1000 classroom covers 1-3/8 inch to 1-3/4 inch. On a 2 inch door the CLX3355 is the one that fits; on a 1-3/8 inch door the Dexter C1000 covers it in standard form.
11) Can a storeroom lever lock be used in place of a classroom lock on a school door?
They are different functions and not interchangeable. The Corbin Russwin CLX3355 is ANSI F84 classroom: the lever operates the deadlocking latchbolt from either side until a key from outside locks the outside lever, and it stays locked until a key unlocks it again. A storeroom function such as the Hager 2580 Grade 2 storeroom cylindrical lock with Withnell lever or the Cal-Royal AG05 Grade 2 storeroom lockset with deadlocking latchbolt keeps the outside lever locked at all times, entry by key only, with no way to leave it unlocked for a class period. Choose storeroom where the door should never stand unlocked, classroom where staff need to toggle it.
12) Is the CLX3355 classroom lock Grade 1, and what does that mean for a high traffic school corridor?
Grade 1 is the top ANSI/BHMA commercial rating, and the CLX3355 is built to A156.2 (2022) Series 4000 Grade 1 as a heavy duty cylindrical lockset. The description cites UL cycle testing at 20 million cycles, plus over 3,100 in-lb abusive locked lever torque and over 1,600 lbs offset lever pull. Chassis is steel, zinc dichromated for corrosion resistance. For a classroom wing that gets hit hundreds of times a day, that is the duty level you want rather than a Grade 2 lock.
13) Does the freewheeling lever on the CLX3355 mean it's broken when it spins?
No, that's the design working. Corbin Russwin calls it Lever Release, and it means that when the outside lever is locked, pushing down on it turns the lever without engaging the chassis. Someone hanging on the handle or kicking it can't transfer force into the lock body, which is where a rigid locked lever usually fails. The latchbolt stays deadlocked throughout. Turn the key from the outside and the lever re-engages and retracts the latch normally.
14) Do I need to order a strike and latch separately with the CLX3355?
No, both come with the lock. Standard is a deadlatch with a square corner front measuring 2-1/4 x 1-1/8 inches on a 2-3/4 inch backset, paired with an ANSI curved lip strike with a 1-1/4 inch lip length. What isn't automatically included is the core if you order a less-core cylinder prep such as CL6, CL7, M08 or M69, or if you order LC less conventional cylinder. Those arrive ready to receive your own core.
15) Is there an electrified version of the Corbin Russwin CLX3300 classroom lock for access control?
The CLX3300 Series lists 27 mechanical and 2 electrified functions. Electrified units run 12VDC or 24VDC, drawing 10mA continuous with a 500mA peak, and use an ElectroLynx 8-pin molex connector so the door harness plugs in without splicing. The CLX33900 with EcoFlex accepts 10.2 to 26.4VDC and is rated for operating temperatures from -13F to 151F. The CLX3355 itself is the mechanical keyed classroom lock, so if you're tying doors into an access control head end, you're ordering the electrified variant, not this one.
16) I need matching passage and dummy levers for the same corridor. What pairs with a Grade 1 cylindrical classroom lock?
Keep the grade consistent across the opening group so the feel and the chassis duty match. In Grade 1 heavy duty cylindrical, ZenSupply carries the BEST 9K Series 1DT single dummy trim and the Accentra 455LN Augusta single dummy, plus the Falcon K101 Grade 1 passage lock, which is fire rated and covers 1-3/8 inch to 2-1/4 inch doors, and the Falcon T101 Grade 1 heavy duty passage lever. Those are different brands from the Corbin Russwin, so lever styling won't match the Armstrong, Newport or Princeton designs. If visual match across the corridor matters more than mixing brands, specify the passage and dummy functions within the CLX3300 Series instead, which runs 27 mechanical functions.
17) Is there a Grade 2 classroom lever lock that can go on lower-traffic doors instead of a Grade 1?
The Cal-Royal AG03 is a classroom lever lock with a Grade 2 rating, a 6-pin Schlage C keyway keyed different, and a 2-3/4 inch backset. It shares the 2-3/4 inch backset with the Corbin Russwin CLX3355, so the door bore layout is the same, but the CLX3355 carries an ANSI/BHMA Grade 1 rating and a conventional 6-pin L4 keyway as standard. If the building is already keyed to Schlage C, the AG03 arrives on that keyway; the CLX3355 offers cylinder options including M69 less core FSIC (Schlage) to work into a Schlage-keyed system.
18) What should I use on the corridor and closet doors if I want to stay Grade 1 but do not need a key?
For non-keyed Grade 1 openings alongside a keyed classroom lock, the Falcon K101 is a Grade 1 heavy-duty passage cylindrical lock with non-handed levers, fire rated, for doors 1-3/8 inch to 2-1/4 inch, and the Falcon T101 is a Grade 1 heavy-duty cylindrical passage lever lock. The Design Hardware X75 is another Grade 1 passage lever lockset, sized for 1-3/4 inch doors. All three are passage function with no cylinder, where the Corbin Russwin CLX3355 is keyed with a single-cylinder classroom function.
19) Is an entry or office function lever the same thing as a classroom lever?
No. An entry/office lever such as the Dexter C1000 entry/office Grade 1 clutching keyed lever, the Falcon B511CP6D Grade 2 entry/office lever, or the Hager 2525 Grade 2 commercial entry lock is locked and unlocked from the inside, usually by a button or turn, so an occupant can secure the door from within. The Corbin Russwin CLX3355 is ANSI F84 classroom: the outside lever is locked by key from outside and the inside lever is always free, so the room cannot be locked from inside. On a school or institutional door written for F84, an entry/office lever will not meet the spec.
20) For a door that needs code entry instead of a key, what replaces a keyed classroom lever?
Keypad lever sets take code entry rather than a cylinder key. The Delaney LP250 is a Grade 2 electronic keypad leverlock; the Lockey 1150 is a heavy duty mechanical keypad lever set with double combination in passage function for doors 1-1/8 inch to 2 inch, and the Lockey 2835 is a mechanical pushbutton keyless lever with passage function and ADA compliance for doors 1 3/16 inch to 2 inch. Those Lockey units are passage function, so they do not provide the key-locked outside lever of the Corbin Russwin CLX3355, which is a keyed ANSI F84 classroom lock with a single cylinder.
21) Is a Grade 3 residential-style entry lever an acceptable substitute on a school or hospital door?
Grade 3 levers such as the Cal-Royal AUS00 entrance/office lever, the Callan Artino entrance leverset, and the Master Lock BC Series keyed entry lever are built to the lightest of the three ANSI/BHMA grades, and the Cal-Royal AUS00 is sized for 1-3/8 inch to 1-3/4 inch doors. The Corbin Russwin CLX3355 is Grade 1, heavy duty, and specified as commercial, on 1-3/4 inch to 2 inch doors. Where the drawing calls for Grade 1 at a classroom opening, a Grade 3 entry lever does not satisfy it.
22) What goes on a patient room or holding room door where a classroom lock is not the right function?
For rooms where the door must be keyed from both sides, an asylum function is the one to look at: the Dexter C1000 Series asylum lock is Grade 1 ANSI F87 for doors 1-3/8 inch to 2 inch, and the Arrow MK33-BD-CS is an asylum function cylindrical lock with a ball knob and a conventional Schlage C keyway. The Corbin Russwin CLX3355 is ANSI F84 classroom with the inside lever always free for egress, which is what a normal classroom or office door wants but not what a controlled room calls for.
23) We are standardizing a building on one cylinder system - which lever locks work with an interchangeable core?
The Corbin Russwin CLX3355 chassis takes a range of cylinder preps: CL6 less core LFIC 6-pin and CL7 less core LFIC 7-pin in Corbin Russwin format, M08 less core SFIC prep that accepts 6 or 7-pin in all designs, M69 less core FSIC for Schlage, or LC less conventional cylinder, with the conventional 6-pin L4 keyway as standard. Among the cross-brand options, the BEST 9K Series is a Grade 1 heavy duty line and the BEST 7KC Series a Grade 2 medium duty line, both long associated with interchangeable core programs. The Accentra 107S is a Schlage cylinder adapter kit for Yale hardware, which is the piece that bridges Yale trim into a Schlage-keyed system.
24) Do I need to order a left-hand and right-hand version of a classroom lever lock?
Not with the Corbin Russwin CLX3355 - it is non-handed, so one part number covers either swing, and the lever design is chosen separately from Armstrong, Newport, or Princeton. The Falcon K101 Grade 1 passage lock is likewise built with non-handed levers. By contrast, some decorative lines are ordered by hand: the Baldwin Estate 5103 half dummy is sold as a distinct left hand part and a distinct right hand part, so the swing has to be confirmed before ordering those.
25) Which lever locks suit a 2 inch thick door?
The Corbin Russwin CLX3355 is built for 1-3/4 inch to 2 inch doors as standard, with optional preps for 1-3/8 inch (D138) or over 2 inch up to 2-1/4 inch (D214). Among cross-brand levers, the Falcon K101 Grade 1 passage lock spans 1-3/8 inch to 2-1/4 inch, the Dexter C1000 asylum covers 1-3/8 inch to 2 inch, and the Hager 2510 Grade 2 passage lever covers 1-3/8 inch to 2 inch. Levers written for 1-3/8 inch to 1-3/4 inch, such as the Cal-Royal AG00 entrance lever, stop short of a 2 inch door.
26) Is a knob-style commercial lock an equivalent swap for a classroom lever?
Knob sets and lever sets are not equivalent on accessible openings. The Arrow HK11-BB is a turn-pushbutton entrance cylindrical lock with a ball knob, and the Arrow MK02-TA is a privacy cylindrical lock with a tudor knob; both use a knob rather than a lever. The Corbin Russwin CLX3355 is a lever handle lock and the CLX3300 Series is certified to ADA A117.1. Where an opening is written for ADA-compliant operating hardware, the lever is the one that answers it.
27) What lever styles and finishes does the Corbin Russwin CLX3355 come in?
Three lever designs: AZD Armstrong, NZD Newport and PZD Princeton. Finishes run fourteen deep, including 605 bright brass, 606 satin brass, 611 bright bronze, 612 satin bronze, 613 satin bronze oil-rubbed, 613E and 613L dark oxidized bronze, 618 bright nickel, 619 satin nickel, 625 bright chrome, 626 satin chrome, 722 black oxidized bronze oil-rubbed, BSP black suede and WSP white suede powder coat. If you're matching existing openings in a building, 626 satin chrome is the common commercial default.
28) Can I get the CLX3355 with a behavioral health trim or a visual occupancy indicator?
The CLX3300 Series offers BHSS behavioral health trim and VSL visual status indicators, which is what healthcare and psychiatric facilities specify for ligature resistance and at-a-glance occupancy. Those are series options, so call them out on the order rather than expecting them on a standard CLX3355. For a hard institutional function where the lock itself needs to be asylum type, ZenSupply also carries the Dexter C1000 Series Grade 1 Asylum (F87) for 1-3/8 inch to 2 inch doors.
29) What matching lever goes on the inactive leaf or a false door next to a CLX3355 opening?
A dummy trim carries no latch and no cylinder, so it is what goes on an inactive leaf. The BEST 9K Series 1DT single dummy trim cylindrical lever is Grade 1 heavy duty and non-keyed, and the BEST 7KC Series single dummy trim lever is Grade 2 medium duty. The Accentra 455LN Augusta is a Grade 1 single dummy cylindrical lever from the 5400 Series. None of these operate a door; the Corbin Russwin CLX3355 is the keyed classroom lock that does the latching work on the active leaf.
30) Can a privacy lever be used on a classroom door instead of a keyed lock?
No. A privacy lever such as the Hager 2540 Grade 2 privacy cylindrical lock with Withnell lever, the Arrow MK02-TA privacy cylindrical lock with tudor knob and no key, or the Baldwin Estate 5103 privacy lever with 5048 rose is for bed and bath doors: it locks by inside button with emergency release and carries no keyed cylinder. The Corbin Russwin CLX3355 is keyed with a single cylinder in ANSI F84 classroom function, so staff control the outside lever by key. A privacy set gives no key control at all.
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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 CLX3355 NZD 626 come with a warranty?
Absolutely. The Corbin Russwin CLX3355 NZD 626 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 CLX3355 NZD 626?
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Why buy the Corbin Russwin CLX3355 NZD 626 from ZenSupply?
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