Corbin Russwin CL3355 Grade 1 ...
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Corbin Russwin Corbin Russwin CL3355 Classroom Extra Heavy-Duty Cylindrical Lever Lock COR-CL3355-KEYED

Corbin Russwin CL3355 Grade 1 Classroom Extra Heavy-Duty Cylindrical Lever Lock

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Model: CL3355 AZD 626 CL6
$953.00
$557.51
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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 CL3355-KEYED Classroom Cylindrical Lever Lock | Extra Heavy-Duty Grade 1 with Deadlocking Latchbolt

Extra Heavy-Duty Commercial Classroom Security with Lever Release™ Vandal Resistance

The Corbin Russwin CL3355-KEYED is an extra heavy-duty, Grade 1 cylindrical lever lock engineered for demanding classroom and institutional environments. Conforming to ANSI function F84 (Classroom), this keyed lockset features a deadlocking latchbolt operable by lever from either side, except when the outside lever is locked by key — placing the lever handle in a freewheeling position for vandal resistance. Designed for door thicknesses of 1-3/4" to 2" with a 2-3/4" backset, the CL3355 is built from steel with zinc dichromated corrosion-resistant treatment and is available in all standard architectural finishes including the most common configuration of NZD Newport lever in 626 Satin Chrome finish.

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

  • K-12 Educational Facilities and Classrooms
  • Higher Education Campus Buildings
  • Healthcare and Medical Office Institutions
  • Commercial Office Buildings
  • Government and Municipal Buildings
  • Industrial and Institutional Facilities
  • Multi-Tenant Commercial Properties

Why Choose Corbin Russwin Quality?

Corbin Russwin CL3300 Series cylindrical lever locks deliver extra heavy-duty, Grade 1 commercial performance with steel and zinc dichromated construction engineered for corrosion resistance and years of dependable operation in high-traffic environments. The CL3355-KEYED is backed by a 7 Year Limited warranty and features the patented Lever Release™ design for vandal resistance, ensuring reliable classroom security across demanding institutional applications. Covers ANSI/DHI Door Prep A115.18 and is fire rated, making it a trusted choice wherever code compliance and long-term durability are essential.

Manufacturer Resources

Product Specs

Subcategory:
Cylindrical Locks
Product Group:
Mechanical Locks
Series:
CL3300 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:
CL3355
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 CL3355 AZD 626 CL6 – Frequently Asked Questions

1) Will the Corbin Russwin CL3355 classroom lever fit a 1-3/4 inch door with a 2-3/4 inch backset?
That's the standard prep for it. The CL3355 covers 1-3/4 inch to 2 inch doors and ships with a 2-3/4 inch backset deadlatch, square corner front, 2-1/4 x 1-1/8 inches. If your existing bore is on the 2-3/8 inch backset common on residential-depth doors, this is not the lock for that opening.
2) How does a classroom function lever actually work day to day?
Key outside is the only thing that locks or unlocks the outside lever on the CL3355. Both levers retract the deadlocking latchbolt normally; once the outside lever is keyed locked it freewheels, and a key outside is what puts it back. The inside lever is always free, so anyone in the room can get out no matter what state the lock is in. Practically: the teacher steps into the corridor to lock the door, they don't lock it from inside.
3) Is the CL3355 Grade 1 and can it go on a fire rated door?
Grade 1 under ANSI/BHMA A156.2 Series 4000, and the CL3355 carries a fire rating. That combination is what an institutional spec normally calls for on corridor and stair openings, and it is a step above the Grade 2 classroom levers in the same category, such as the Cal-Royal AG03.
4) Can the CL3355 take my building's existing key system instead of a Corbin Russwin cylinder?
Yes, in several directions. Standard is a conventional 6-pin brass cylinder in the L4 keyway, but you can order it CL6 or CL7 less core for Corbin Russwin large format interchangeable core, M08 less core with SFIC prep (takes 6 or 7-pin, all designs), M69 less core FSIC for Schlage, or LC less conventional cylinder if you're supplying your own. Keyed different is standard; keyed alike is available if you want one key across a group of doors.
5) Is a cylindrical classroom lever enough security, or do I need a classroom security or intruder function?
The CL3355 is the plain F84 classroom function: keyed from the outside only. If your district requires a teacher to lock the door from inside the room during a lockdown, that is a different function and the CL3355 will not do it. Corbin Russwin's CL3352 classroom intruder is the double-cylinder version with always-free egress, keyed either side. Another route is the Dexter C1000 Series classroom security lever, which is a Grade 1 classroom security function for 1-3/8 to 1-3/4 inch doors.
6) What is the closest Grade 1 classroom lever lock to the Corbin Russwin CL3355 if I need a different brand?
The Dexter C1000 Series classroom cylindrical lever lock is the nearest match on function and grade: it is a Grade 1 keyed classroom cylindrical lever lock, the same function class as the CL3355, which is a Grade 1 classroom cylindrical lever lock with a deadlocking latchbolt. The difference to check before you order is door thickness. The CL3355 covers 1-3/4 inch to 2 inch doors, while the Dexter C1000 classroom is rated 1-3/8 inch to 1-3/4 inch. On a 2 inch door the CL3355 covers the opening and the Dexter does not; on a 1-3/8 inch door the Dexter does and the CL3355 does not.
7) The classroom door needs to lock from inside during a lockdown. Does the CL3355 do that, or do I need a different lock?
The CL3355 is an ANSI F84 classroom function: the outside lever is locked and unlocked by key from the outside, and the inside lever is always free. There is no inside keyed control, so a teacher cannot secure the door from within the room. For that requirement, the Dexter C1000 Series classroom security lever lock is a Grade 1 keyed lock built for the classroom security function, which is the function class that adds inside key control of the outside lever. Specify the classroom security function on the order rather than the standard classroom function if lockdown-from-inside is the requirement.
8) For a patient room or holding room, is the CL3355 classroom lock the right choice?
No. The CL3355 keeps the inside lever always free, which is correct for a classroom but not for a room where both sides must be key controlled. That application uses an asylum or institution function, where the Dexter C1000 Series asylum lock is a Grade 1 cylindrical lock built to ANSI F87 for 1-3/8 inch to 2 inch doors. A knob version exists in the Arrow MK33-BD-CS, a heavy duty asylum cylindrical lock with a ball knob and a conventional Schlage C keyway cylinder. Choose by whether the facility requires lever trim for accessibility.
9) Our building is keyed to Schlage. Do I have to change the CL3355 to match?
No. The CL3355 can be ordered with the M69 less core FSIC (Schlage) cylinder prep or with the M08 less core SFIC prep that accepts 6 or 7 pin cores in all designs, so it drops into an existing Schlage-keyed system without a cylinder adapter. Corbin Russwin large format interchangeable core preps are also available as CL6 and CL7. Where an adapter is genuinely required is on a different platform, such as the Accentra 107S Schlage cylinder adapter kit for Yale hardware; nothing of that kind is needed on the CL3355 when the correct prep is specified at order.
10) What do I use on a 1-3/8 inch door if the CL3355 does not fit?
The CL3355 covers 1-3/4 inch to 2 inch doors, so a 1-3/8 inch leaf needs a lock rated down to that thickness. In Grade 1, the Falcon K101 passage lever covers 1-3/8 inch to 2-1/4 inch and is fire rated, and the Dexter C1000 Series keyed lever locks cover 1-3/8 inch to 1-3/4 inch in classroom, classroom security, entry/office and asylum functions. In Grade 2, the Hager 2510 passage and Hager 2525 entry levers cover 1-3/8 inch to 2 inch. Pick by the function the opening needs, then confirm the thickness against the actual door.
11) Do I have to specify a hand when ordering a Corbin Russwin CL3355?
No handing to call out. The CL3355 is non-handed, so one lock covers left and right hand openings and you don't need to stock both. That matters if you're standardizing a building and want a single part number on the shelf for every classroom door.
12) What do I order for a classroom door thicker than 2 inches or with a deep stile?
Standard coverage on the CL3355 is 1-3/4 to 2 inch doors on a 2-3/4 inch backset. Over 2 inches, up to 2-1/4 inch thickness is an option, and the backset can be ordered at 3-3/4 inch or 5 inch when the bore sits deeper into the door. Those are order-form choices, not field adjustments, so they get called out when the lock is bought.
13) What finishes and lever styles does the Corbin Russwin CL3355 come in, and can I match the other doors in the building?
Three lever designs, Armstrong (AZD), Newport (NZD) and Princeton (PZD), across fourteen finishes: 605 bright brass, 606 satin brass, 611 bright bronze, 612 satin bronze, 613 oil-rubbed satin bronze, 613E dark oxidized satin bronze equivalent, 613L dark oxidized oil-rubbed, 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. NZD Newport in 626 satin chrome is the common institutional pairing, so if the rest of your openings are 626 that is the match.
14) Will a CL3355 stand up to a high school corridor where levers get abused?
That is what the design targets. The chassis is steel, zinc dichromated for corrosion resistance, rated extra heavy duty Grade 1, and the outside lever freewheels when locked rather than fighting the chassis, so hanging on a locked lever doesn't drive the load into the latch. Independent return springs keep the lever from sagging, and anti-rotational through-bolts at 6 and 12 o'clock hold the trim square to the door.
15) Can I get a Corbin Russwin CL3300 classroom lever with access control wiring?
The electrified version is the CL33900, available fail safe or fail secure at 12 or 24VAC/VDC, drawing 250mA at 12V and 150mA at 24V on a continuous duty solenoid. It uses the ElectroLynx 8-pin connector, so it plugs into an ElectroLynx door loop rather than needing field wiring at the lock. The plain CL3355 is mechanical only, so if the door is going on a card reader you order the electrified part number, not this one.
16) Which door prep does the CL3355 use, and does a MicroShield option exist for healthcare?
Standard ANSI/DHI door prep A115.18 covers the CL3355, so a door already bored to that prep takes it directly. For patient areas and clinics, the antimicrobial MicroShield coating is orderable as suffix code C on the same lock.
17) What are the alternatives to a Corbin Russwin CL3355 if I don't need a keyed classroom lock on every door?
Match the function to the opening. For rooms that only need to latch, Falcon's K101 is a Grade 1 passage cylindrical lock covering 1-3/8 to 2-1/4 inch doors and fire rated, and the Falcon T101 is the heavy duty Grade 1 passage lever. Where a room stays locked and the key just lets staff in, a storeroom function such as the Cal-Royal AG05 (Grade 2, deadlocking latchbolt) is the pattern. For a straight Grade 1 classroom equivalent from another brand, the Dexter C1000 Series classroom lever covers 1-3/8 to 1-3/4 inch doors, which is a narrower thickness range than the CL3355's 1-3/4 to 2 inches.
18) What Grade 1 lever lock should I use on the non-locking doors in the same corridor as CL3355 classroom locks?
Corridor, hall and closet doors that never need to lock take a passage function, not the keyed classroom function of the CL3355. Two Grade 1 passage cylindrical lever locks match that duty level: the Falcon K101, a Grade 1 heavy duty non-handed passage lock rated for 1-3/8 inch to 2-1/4 inch doors and fire rated, and the Falcon T101, a Grade 1 heavy duty passage lever lock in the T Series. The CL3355 itself is non-handed and fire rated, so pairing it with the K101 keeps handing and fire rating consistent across the corridor while dropping the cylinder where no locking is required.
19) Can I use a storeroom lever lock in place of the Corbin Russwin CL3355?
Only if you want the door locked at all times. The CL3355 is a classroom function where the outside lever is locked and unlocked by key from the outside, so staff can leave the door unlocked all day and lock it with one key turn. A storeroom function keeps the outside lever locked permanently and requires the key on every entry. Storeroom options include the Hager 2580 with Withnell lever, a Grade 2 storeroom cylindrical lock for 1-3/8 inch to 2 inch doors, and the Cal-Royal AG05, a Grade 2 storeroom lever lockset with a deadlocking latchbolt for 1-3/8 inch to 1-3/4 inch doors. Both are Grade 2 where the CL3355 is Grade 1.
20) Would an entry or office lever lock work instead of a CL3355 classroom lock?
It changes who controls the door. With the CL3355 the outside lever is locked and unlocked only by key from the outside, so a student or occupant cannot lock the room. An entry or office function is typically locked from the inside without a key, which is why it is used on offices rather than classrooms. Grade 1 in that function is the Dexter C1000 Series entry/office lever lock, rated for 1-3/8 inch to 1-3/4 inch doors. Grade 2 options are the Falcon B511CP6D entry/office lever and the Hager 2525 commercial entry lever for 1-3/8 inch to 2 inch doors. Use the entry function on staff offices and keep the CL3355 on classroom doors.
21) I want to get rid of keys on classroom doors. What replaces a keyed CL3355?
The CL3355 is a keyed single cylinder lock that ships with a conventional 6-pin L4 keyway cylinder, so every lock and unlock is a key turn. Keyless alternatives in lever form include the Delaney LP250 electronic keypad leverlock, a Grade 2 lock in the LP250 Series, and the Emtek Classic keypad leverset. Mechanical pushbutton options are the Lockey 2835, a keyless lever lock with passage function and ADA compliance for 1 3/16 inch to 2 inch doors, and the Lockey 1150 heavy duty mechanical keypad lever set for 1-1/8 inch to 2 inch doors. Note that the Lockey units are passage function, so they do not provide the key-controlled outside lever the CL3355 gives you.
22) Are Grade 2 or Grade 3 lever locks an acceptable substitute for the CL3355 on school corridors?
They are a different duty class. The CL3355 is Grade 1 heavy duty commercial with a steel chassis, zinc dichromated for corrosion resistance, sized for high-traffic institutional openings. Grade 2 lever locks in the same broad family include the Accentra 5301LN Augusta passage lever in the 5300 Series and the Hager 2510 passage lever for 1-3/8 inch to 2 inch doors. Grade 3 options such as the Cal-Royal AUS00 entrance/office lever with a solid brass forged body for 1-3/8 inch to 1-3/4 inch doors and the Callan Artino entrance leverset sit a further step down. Where a specification calls out ANSI/BHMA Grade 1, only a Grade 1 lock such as the CL3355 satisfies it.
23) Is a privacy lever lock the same thing as a classroom lock for a school restroom?
They are different functions and not interchangeable. The CL3355 classroom function has no inside locking at all, since the inside lever is always free and only a key on the outside locks the outside lever. A privacy function locks from inside without a key, which is what a restroom or changing room needs. Privacy options include the Hager 2540 with Withnell lever for 1-3/8 inch to 2 inch doors, the Accentra Augusta family for Grade 2 cylindrical trim, and the Arrow MK02-TA, a privacy cylindrical lock with a Tudor knob that is non-keyed and fire rated. Use privacy on restrooms and keep the CL3355 on the classroom.
24) Is there a Grade 1 lever lock that matches the CL3355 duty level but without a keyed cylinder?
Yes, for openings that need Grade 1 durability with no locking. The Design Hardware X75 is a Grade 1 passage lever lockset with a flat lever for 1-3/4 inch doors, and the Falcon T101 is a Grade 1 heavy duty passage cylindrical lever lock in the T Series. Both carry the same Grade 1 rating and heavy duty class as the CL3355 but omit the cylinder, so there is no keyway to integrate into the master key system. The Design Hardware J75 is the Grade 2 flat lever passage equivalent if the opening does not require Grade 1.
25) Can I keep the CL3355 from locking accidentally, and what stops someone slipping the latch?
The latch is a deadlatch, so an auxiliary latchbolt deadlocks the main bolt once the door is closed and it can't be carded or shimmed. And since only a key on the outside changes the lock state, nobody pulls the door shut and finds it locked behind them the way a pushbutton entrance lock does.
26) Can I order the CL3355 with a rounded corner latch face for a metal door?
Yes. Square corner deadlatch 2-1/4 x 1-1/8 inches on a 2-3/4 inch backset is the standard face, and a rounded corner deadlatch in the same size and backset is available for doors routed with a radiused edge prep. Both use the same 2-3/4 inch backset, so the bore location doesn't change.
27) Can a dummy lever be ordered to match CL3355 classroom locks on inactive doors?
A dummy trim has no latch and no cylinder, so it is only for an inactive leaf or a pull-side application, never a substitute for the keyed CL3355. Grade 1 dummy trim to sit alongside heavy duty openings is the BEST 9K Series 1DT single dummy trim cylindrical lever, a Grade 1 heavy duty non-keyed unit; the BEST 7KC Series 1DT is the Grade 2 medium duty equivalent. The Accentra 455LN Augusta is another Grade 1 single dummy cylindrical lever, in the 5400 Series. Lever style and finish will not match Corbin Russwin trim, so confirm the appearance is acceptable on visible openings.
28) Can I substitute a residential lever set for the CL3355 to save on a light-use door?
Residential-grade lever sets are built for a different service life. The CL3355 is a commercial Grade 1 heavy duty lock with a steel zinc dichromated chassis. Residential options such as the Kwikset 200BRNL Breton passage lever and the Kwikset 300BRNL Breton privacy lever are Grade 3 for 1-3/8 inch to 1-3/4 inch doors, and the Master Lock BC Series return style keyed entry lockset is Grade 3 entrance function. Decorative brass leversets like the Baldwin Estate 5103 are offered in passage, privacy and half dummy versions. None of these carries the Grade 1 rating or the classroom function, so they will not satisfy an institutional specification calling for the CL3355.
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Does the Corbin Russwin CL3355 AZD 626 CL6 come with a warranty?
Absolutely. The Corbin Russwin CL3355 AZD 626 CL6 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
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