Corbin Russwin CL3351 Grade 1 ...
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$953.00
$476.15
Corbin Russwin Corbin Russwin CL3351 Entrance/Office Extra Heavy-Duty Cylindrical Lever Lock COR-CL3351-KEYED

Corbin Russwin CL3351 Grade 1 Entrance/Office Extra Heavy-Duty Cylindrical Lever Lock

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Model: CL3351 NZD 626
$953.00
$476.15
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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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$953.00
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Corbin Russwin CL3351-KEYED Entrance/Office Extra Heavy-Duty Cylindrical Lever Lock with Vandal-Resistant Lever Release Design

Grade 1 Commercial Cylindrical Lockset for High-Traffic Entrance and Office Applications

The Corbin Russwin CL3351-KEYED is an extra heavy-duty, Grade 1 commercial cylindrical lever lock engineered for demanding entrance and office applications. Conforming to ANSI function F109 (Entrance/Office), this keyed cylindrical lever lock features a deadlocking latchbolt operable by lever from either side, except when the turn button locks the outside lever. Designed for door thicknesses of 1-3/4" to 2" with a 2-3/4" backset, the CL3351 is built from steel with zinc dichromate treatment for corrosion resistance 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

  • Commercial Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Retail Establishments
  • Industrial and Warehouse Facilities
  • Multi-Tenant Residential Properties
  • Government and Municipal Buildings

Why Choose Corbin Russwin Quality?

Corbin Russwin CL3300 Series cylindrical locksets deliver professional-grade reliability through Grade 1 extra heavy-duty construction using steel with zinc dichromated substrate for corrosion resistance, engineered to meet the demands of high-traffic commercial, industrial, and institutional environments. The Lever Release™ vandal-resistant design and Pyramid cylinder security options provide enhanced protection, while the 7 Year Limited warranty underscores the brand's commitment to long-term performance. Backed by EZ-Install components and compatibility with the CL33900 electrified access control platform, Corbin Russwin delivers a complete, dependable entrance security solution.

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:
F109
Product Subgroup:
Bored Locksets
Product Type:
Leversets
Keyed:
Yes
Commercial/Residential:
Commercial
Function Description:
Deadlocking latchbolt (either side). Freewheeling lever action determined by push turn button (engaged vs engaged + turned vs disengaged). Use of outside key required in engaged + turned. Inside lever always free.
Lock Type:
Cylindrical
Handle Type:
Lever
Lock Function:
Entrance/Office
Product Attribute:
Cylindrical Locks
Product Model:
CL3351
Product Function:
Entrance/Office
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 CL3351 NZD 626 – Frequently Asked Questions

1) Will the Corbin Russwin CL3351 fit a 1-3/4 inch commercial door?
Yes, 1-3/4 inch is right in the middle of the CL3351's range. The lock is built for doors 1-3/4 inch through 2 inch thick with a 2-3/4 inch backset, which is the standard commercial bore layout. If your doors are the older 1-3/8 inch interior type, this is not the lock for that opening.
2) How does the Entrance/Office function on the Corbin Russwin CL3351 actually work day to day?
The CL3351 is ANSI F109 Entrance/Office with a push turn button on the inside. Push the button and the outside lever is locked; push and turn it and the button stays engaged until a key is used from outside. The inside lever is always free, so anyone can get out without touching the button. The latchbolt is deadlocking, so it can't be shimmed or carded once the door is shut.
3) Do I have to specify a hand when ordering a Corbin Russwin CL3351 lever lock?
No handing to specify. The CL3351 cylindrical lever lock is non-handed, so one part number covers left and right hand openings and you don't need to know which way the door swings before you order.
4) Can I order the CL3351 to work on my building's existing small format interchangeable core system?
Yes. Besides the standard conventional 6-pin L4 keyway cylinder, the CL3351 can be ordered as M08 less core with SFIC prep, which takes 6 or 7-pin small format cores in any design. There are also Corbin Russwin large format options, CL6 less core LFIC 6-pin and CL7 less core LFIC 7-pin, an M69 less core FSIC prep for Schlage cores, and LC if you want it shipped less conventional cylinder entirely so your locksmith can supply it.
5) Is the Corbin Russwin CL3351 approved for a fire rated door?
The CL3351 is fire rated and carries UL-cUL listing, along with ANSI/BHMA A156.2 Grade 1 and California State Fire Marshal listing. For fire door use, order the optional 3/4 inch throw fire latch rather than the standard 1/2 inch throw latchbolt.
6) I need a classroom lock, not an office lock. Is the CL3351 the right one?
No. The CL3351 is the Entrance/Office F109 function, locked and unlocked by a push turn button inside. If you need a teacher to lock the door from inside during a lockdown, the CL3352 Classroom Intruder function in the same CL3300 Series is the one, a double cylinder lockset with always-free egress. For Grade 1 classroom function from another brand we also carry the Dexter C1000 Series classroom lever, and a classroom security version, both for 1-3/8 to 1-3/4 inch doors.
7) What is the closest Grade 1 entrance/office cylindrical lever lock to the Corbin Russwin CL3351 from another manufacturer?
The Dexter C1000 Series entry/office cylindrical lever lock is the nearest peer: it is a Grade 1 cylindrical lever lock with an Entrance/Office function, the same duty class and function family as the CL3351. The differences that decide the order are at the door: the CL3351 covers 1-3/4 inch to 2 inch door thickness with a 2-3/4 inch backset, while the Dexter C1000 entry/office is listed for 1-3/8 inch to 1-3/4 inch doors. If the openings are 2 inch thick, the CL3351 is the one that fits; on 1-3/8 inch doors the Dexter is the one built for it.
8) The door needs to stay locked at all times with the key always retracting the latch - what should I use instead of a CL3351 entrance/office lever?
That is storeroom function, not entrance/office. The CL3351 uses a push turn button on the inside to decide whether the outside lever is free, so anyone inside can leave it unlocked. For an opening that must never be left unsecured, 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 the Withnell lever for 1-3/8 inch to 2 inch doors.
9) Our building already keys to Schlage - do I have to give up the CL3351 for a Schlage-keyway lock?
No. The CL3351 ships standard with a conventional 6-pin L4 keyway cylinder, but it is also offered less core for FSIC Schlage prep, less core SFIC prep accepting 6 or 7-pin cores of all designs, and less conventional cylinder, so an existing core can go straight in. Peers that come factory-keyed to Schlage C include the Cal-Royal AG03 classroom lever and the Cal-Royal AG00 entrance lever with a 6-pin Schlage C keyway. Keeping the CL3351 with a less-core option keeps the Grade 1 chassis and the existing key system together.
10) I need to key several offices alike on the same key. Can the Corbin Russwin CL3351 be ordered that way?
Yes. Keying is a required choice on the CL3351: keyed different (KD) as standard, or keyed alike (KA) when you want a group of doors on one key. The chassis accepts 6 or 7-pin conventional cylinders and all keying levels, so it can also be brought into an existing master key system. Any special cylinder or keying requirement can be specified with the order.
11) My door has a 3-3/4 inch backset, not the usual 2-3/4. Is there a CL3351 for that?
The CL3351 is a 2-3/4 inch backset lock as standard, and optional 3-3/4 inch (95mm) and 5 inch (127mm) backsets are offered for wider stile or narrow glass applications. The deeper backsets have to be specified on the order, since the standard latch that ships with the lock is a 2-3/4 inch unit.
12) What happens to a lever lock when someone hangs off the outside lever of a locked door?
That's exactly what the Lever Release design on the CL3351 is for. When the lock is secured, the outside lever rotates freely instead of transferring force into the chassis, so a kick or a body weight pull on the lever doesn't break the lock. Independent return springs also keep the levers from sagging over time, which is the usual failure people see on high traffic office doors.
13) Will the CL3351 hold up in a school or hospital corridor, or do I need something heavier?
Grade 1 extra heavy duty is the top commercial tier under ANSI/BHMA A156.2 Series 4000, and the CL3351 sits there. The chassis is steel with a zinc dichromate treatment for corrosion resistance and anti-rotational through-bolts at 6 and 12 o'clock keep the trim from spinning loose under abuse. For healthcare and other touch-sensitive spaces it can also be ordered with MicroShield antimicrobial coating using the C suffix.
14) Can I tie a Corbin Russwin CL3351 office door into an access control system later?
Not the CL3351 itself, it's a mechanical lock. Corbin Russwin's electrified version of the same platform is the CL33900 Series, fail safe or fail secure, 12 or 24VAC/VDC, drawing 250mA at 12V and 150mA at 24V on a continuous duty solenoid, with an ElectroLynx 8-pin connector so it plugs into the door harness without splicing. If any of those openings might go on a card reader, spec the CL33900 for those doors up front.
15) What's a comparable Grade 1 entrance/office lever lock if I don't want Corbin Russwin?
The closest match we carry is the Dexter C1000 Series Grade 1 Entry/Office clutching keyed lever, which is the same function class in Grade 1 and fits 1-3/8 to 1-3/4 inch doors, so it covers thinner doors than the CL3351's 1-3/4 to 2 inch range but not 2 inch stock. If Grade 2 is acceptable for the traffic, the Falcon B511CP6D and the Hager 2525 are entry function cylindrical levers at that tier. The CL3351 is the one to stay with if you need Grade 1 on a 2 inch door.
16) Does the CL3351 lever lock meet accessibility requirements for a public building?
It's listed to ANSI A117.1 Accessibility. The lever handle itself is what does the work there, since a lever can be operated without grasping or twisting, unlike a knob. If you're replacing knob sets on a public corridor to bring an older building into compliance, this is the swap.
17) Is the CL3351 a bored cylindrical lock or a mortise lock?
Cylindrical. The CL3351 goes into a standard bored door prep with a 2-3/4 inch backset, not a mortise pocket, and it uses anti-rotational through-bolts at 6 and 12 o'clock plus EZ-Install components to cut installation time. If your doors are already prepped for a mortise lock body, a cylindrical lock is the wrong replacement for that opening.
18) Is there a lighter-duty entrance/office lever lock that does the same job as the CL3351?
Two step down in grade while keeping the entrance/office function. The Falcon B511CP6D is a Grade 2 medium-duty cylindrical lever lock with an entry/office function, and the Cal-Royal AUS00 is a Grade 3 entrance/office lever with a solid brass forged body for 1-3/8 inch to 1-3/4 inch doors. The CL3351 is Grade 1 heavy duty for 1-3/4 inch to 2 inch doors. On a low-traffic interior office door the Grade 2 or Grade 3 option carries the same push-button entrance/office behavior; on a main entrance cycled all day the Grade 1 chassis is what the traffic calls for.
19) What is the classroom-function alternative to the Corbin Russwin CL3351?
For a classroom opening, the Dexter C1000 Series classroom cylindrical lever lock is a Grade 1 clutching keyed lever for 1-3/8 inch to 1-3/4 inch doors, and the Dexter C1000 classroom security version is Grade 1 as well for the same door range. The Cal-Royal AG03 is a Grade 2 classroom lever with a 6-pin Schlage C keyway and a 2-3/4 inch backset. The CL3351 is an entrance/office lock whose inside turn button governs the outside lever, which is a different behavior from key-only classroom control.
20) I do not need the door to lock - what non-keyed lever matches a Grade 1 chassis like the CL3351?
For passage openings, the Falcon K101 is a Grade 1 heavy-duty passage cylindrical lock with non-handed levers, fire rated, for 1-3/8 inch to 2-1/4 inch doors, and the Falcon T101 is a Grade 1 heavy-duty passage lever with pressure release technology. Design Hardware X75 is a Grade 1 passage lever lockset with a flat lever for 1-3/4 inch doors. The CL3351 is keyed with a single cylinder, so it is the wrong pick where no locking is wanted.
21) Can I use a dummy lever such as the BEST 9K 1DT in place of a CL3351 on the inactive leaf of a pair?
Only where nothing has to latch. The BEST 9K Series 1DT is a Grade 1 non-keyed heavy-duty single dummy trim lever - it is a pull with no latch and no chassis. The BEST 7KC Series 1DT is the Grade 2 medium-duty dummy equivalent. The CL3351 carries a deadlocking latchbolt with a 2-3/4 inch backset and an ANSI curved lip strike, so a dummy is a visual match on the same door, not a functional substitute.
22) We want to stop issuing keys for an office door - what keyless lever can replace a CL3351?
Mechanical and electronic keypad levers cover that. The Lockey 2835 is a mechanical pushbutton keyless lever lock with passage function and ADA compliance for 1-3/16 inch to 2 inch doors, and the 2835DC adds a double combination over the same door range. The Lockey 1150 is a heavy-duty mechanical keypad lever set with double combination for 1-1/8 inch to 2 inch doors, and the 1150S adds an adjustable backset. The Delaney LP250 is a Grade 2 electronic keypad leverlock. The CL3351 takes a conventional 6-pin L4 keyway cylinder and is Grade 1, so a keypad set trades keying for code entry and changes the chassis class.
23) The opening is a patient room or utility closet - is the CL3351 the right function or is an asylum lock better?
Asylum function is the one for those openings, with a key required from both sides. The Dexter C1000 Series asylum lock is a Grade 1 cylindrical lock, ANSI F87, for 1-3/8 inch to 2 inch doors, and the Arrow MK33-BD-CS is a Grade 2 heavy-duty asylum cylindrical lock with a ball knob and a conventional Schlage C keyway cylinder. The CL3351 is ANSI F109 entrance/office with the inside lever always free, which is the opposite of what an asylum opening needs.
24) Can I match the CL3351 to the satin chrome hardware already on my other office doors?
Satin chrome 626 is available and it's the most common commercial pull. Beyond that the CL3351 comes in bright brass 605, satin brass 606, bright bronze 611, satin bronze 612, oil-rubbed satin bronze 613, 613E dark oxidized equivalent, 613L dark oxidized oil-rubbed, bright nickel 618, satin nickel 619, bright chrome 625, black oxidized bronze oil-rubbed 722, black suede BSP, and white suede powder coat WSP. Lever style is a separate choice: Armstrong AZD, Newport NZD, or Princeton PZD.
25) Are the Accentra Augusta 4601LN and 5301LN levers substitutes for a Corbin Russwin CL3351?
No - both are non-locking. The Accentra 4601LN is a Grade 2 passage cylindrical lever in the 4600 Series with Augusta trim, and the 5301LN is a Grade 2 Augusta passage/closet lever in the 5300 Series. The Accentra 455LN Augusta is a Grade 1 single dummy in the 5400 Series, which does not latch at all. The CL3351 is a keyed Grade 1 entrance/office lock with a deadlocking latchbolt, so the Augusta levers match the look, not the function.
26) The door is a bathroom or bedroom - what takes the place of an entrance/office lever there?
Privacy function is the one to order. The Arrow MK02-TA is a privacy lock with a Tudor knob, non-keyed, fire rated, for 1-3/4 inch to 2 inch doors, and the Baldwin Estate 5103 privacy lever with the 5048 rose covers the same function with lever trim. The CL3351 is a keyed entrance/office lock with a single cylinder, which is more lock than a bath door needs and puts a key where none is wanted.
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Does the Corbin Russwin CL3351 NZD 626 come with a warranty?
Absolutely. The Corbin Russwin CL3351 NZD 626 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
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