Corbin Russwin CL3151 Entrance...
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$1,110.04
$665.84
Corbin Russwin Corbin Russwin CL3151 Entrance/Office Grade 1 Vandal Resistance Cylindrical Lever Lock COR-CL3151-KEYED

Corbin Russwin CL3151 Entrance/Office Grade 1 Vandal Resistance Cylindrical Lever Lock

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Model: CL3151 NZD 626
$1,110.04
$665.84
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Corbin Russwin CL3151-KEYED Entrance/Office Grade 1 Cylindrical Lever Lock with Vandal Resistance and T-Zone Construction

Patented T-Zone Construction for Commercial-Grade Security and Durability

The Corbin Russwin CL3151-KEYED is a Grade 1 keyed cylindrical lever lock engineered for Entrance/Office applications (ANSI function F109) in high-demand commercial environments. Designed for doors 1-3/4" to 2" thick with a 2-3/4" backset, this lockset features a deadlocking latchbolt operable by lever from either side, with a push turn button that controls the outside lever—requiring key access when engaged. The CL3100 Series’ patented T-Zone construction interlocks the aligning and latch tubes to form a rugged torque-resistant “T” in the critical twist area, tested to over 15 million cycles and exceeding ANSI/BHMA A156.2 Series 4000 Grade 1 standards by 15 times. The product substrate is steel with zinc dichromate treatment for corrosion resistance, and it carries a fire rating for added code compliance.

Professional Features & Benefits

  • Door Thickness Compatibility: Designed for 1-3/4" to 2" doors with a 2-3/4" backset, accommodating standard commercial door preparations.
  • Exceptional Cycle Durability: T-Zone construction tested to over 15 million cycles, exceeding ANSI/BHMA A156.2 Series 4000 Grade 1 standards by 15 times for long-term reliability in high-traffic applications.
  • Vandal-Resistant T-Zone Construction: Patented interlocking of the lockbody and latch tubes creates a rugged torque-resistant “T” in the critical twist area, providing strength and durability far exceeding Grade 1 standards.
  • Versatile Function Control: Pushing the turn button locks the outside lever (freewheeling); pushing in and turning the button requires key at all times outside; turning the inside lever unlocks the outside lever unless the button is in the locked-and-turned position. Inside lever always free.
  • Conventional 6-Pin Cylinder: Includes two nickel silver keys; integrates into most existing facility key systems and accepts Schlage® LFIC. Several security key systems available including Access 3® and Pyramid.
  • ANSI Curved Lip Strike Included: Strike measures 4-7/8" x 1-1/4" x 1-1/4" lip to center for reliable latchbolt engagement.
  • Anti-Microbial Option Available: Available with Microshield® antimicrobial coating across 11 hardware finishes, including the most common 626 Satin Chrome finish.
  • Sustainable Construction: Made from 68% post-consumer recycled content as per LEED MR credit 4, supporting green building initiatives.
  • Manufacturer Warranty: 7 Year Limited warranty for added confidence and protection.

Technical Specifications

  • Subcategory: Cylindrical Locks
  • Product Group: Mechanical Locks
  • Series: CL3100 Series
  • Grade: Grade 1
  • 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: CL3151
  • 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

Professional Applications

  • Commercial Office Buildings
  • Educational Facilities – K-12 and Universities
  • Healthcare Institutions and Hospitals
  • Retail Establishments
  • High-Traffic Public Buildings
  • Industrial and Institutional Facilities
  • Multi-Tenant Commercial Properties

Anti-Microbial Option

The Corbin Russwin CL3100 Series is available with Microshield® antimicrobial coating across 11 hardware finishes, making it an ideal choice for healthcare, educational, and high-contact environments where hygiene and surface protection are a priority.

Why Choose Corbin Russwin Quality?

Corbin Russwin CL3100 Series cylindrical lever locks deliver professional-grade reliability through patented T-Zone construction tested to over 15 million cycles—exceeding ANSI/BHMA A156.2 Series 4000 Grade 1 standards by 15 times. Built from steel with zinc dichromate corrosion resistance and backed by a 7 Year Limited warranty, these locksets are engineered for demanding commercial applications where dependable performance and long-term durability are essential. With 18 available functions, 11 finish options, and compatibility with most standard 161 cylindrical door preps, the CL3100 Series offers exceptional versatility for any commercial installation.

Manufacturer Resources

Corbin Russwin Condensed Catalog

Product Specs

Subcategory:
Cylindrical Locks
Product Group:
Mechanical Locks
Series:
CL3100 Series
Grade:
Grade 1
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:
CL3151
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 CL3151 NZD 626 – Frequently Asked Questions

1) Will the Corbin Russwin CL3151 fit a 1-3/4 inch commercial door with a standard 161 prep?
The CL3151 is built for doors 1-3/4 inch to 2 inch thick on a 2-3/4 inch backset, and it goes into the standard 161 cylindrical prep. If your openings are 1-3/8 inch (common on older interior doors), this is the wrong lock - the range starts at 1-3/4. On the backset, check the door before ordering: a 2-3/8 inch bored door will not take this lock without redrilling.
2) What does the Entrance/Office function on the Corbin Russwin CL3151 actually do at the door?
It is ANSI F109. The inside lever is always free, so you always get out. Push the turn button and the outside lever freewheels, locked, until someone turns the inside lever or uses the key. Push in and turn the button and the outside lever stays locked until a key is used, period - turning the inside lever will not release it. That second mode is what you want for a suite door staff lock behind them at night; the plain push mode is the one that unlocks itself the next time someone walks out.
3) Do I have to order the Corbin Russwin CL3151 handed for a left or right hand door?
No handing to specify. The CL3151 is non-handed, so one lock covers both swings - useful when you are stocking spares for a building with openings going both directions.
4) Can the CL3151 be keyed into our existing Schlage or Corbin Russwin master key system?
The standard build ships as a conventional 6-pin cylinder in the L4 keyway with two nickel silver keys, and it accepts Schlage LFIC if your facility is on small format interchangeable core. If you are keying it yourself or your integrator supplies the cores, order it less cylinder: the cylinder choices are the conventional 6-pin L4, LC less conventional cylinder, or CL6 less core for a Corbin Russwin LFIC in either 6-pin or 7-pin. Keying is specified as keyed different or keyed alike on the order.
5) Can I use the CL3151 on a fire rated stairwell or corridor door?
The CL3151 carries a fire rating, and the latch is a deadlatch, which is what a rated opening needs to stay positively latched. Grade 1 under ANSI/BHMA A156.2 Series 4000. One caution on function: F109 lets the outside lever be locked, so it is not a fit where the code official requires free access on the pull side of a stair door - that is a classroom or storeroom function question, not this one.
6) My doors are 1-3/8 inch thick - what Entrance/Office lever should I use instead of the CL3151?
Not this one. The CL3151 starts at 1-3/4 inch. For 1-3/8 inch doors, the Dexter C1000 Entry/Office lever is Grade 1 and covers 1-3/8 to 1-3/4 inch. The Falcon K101 spans 1-3/8 to 2-1/4 inch and is Grade 1 with a fire rating, though it is passage function, not keyed. In Grade 2, the Hager 2525 entry lever runs 1-3/8 to 2 inch. On the lighter end, the Cal-Royal AUS00 is a Grade 3 Entrance/Office lever for 1-3/8 to 1-3/4 inch doors.
7) I need a classroom or storeroom lock, not Entrance/Office - is the CL3151 close enough?
No, and the difference matters at the door. F109 Entrance/Office locks from the inside with a push button, which means anyone inside can leave the outside lever unlocked. A storeroom function keeps the outside lever locked at all times, key only, with no button to defeat. A classroom function is keyed from the outside to lock and unlock. The CL3100 Series carries 18 functions, so the same lever and rose are available in those; across brands, the Cal-Royal AG05 is a Grade 2 storeroom lever with a deadlocking latchbolt, the Hager 2580 is a Grade 2 storeroom, and the Dexter C1000 comes in classroom and classroom security.
8) What is the closest Grade 1 equivalent to the Corbin Russwin CL3151 entrance/office lever lock from another manufacturer?
The Dexter C1000 Series Entry/Office cylindrical lever lock (DEX-C1000-ENTR) is the nearest match: it is a Grade 1 keyed cylindrical lever lock in the Entrance/Office function, the same function the CL3151 carries. The differences that matter on the door are thickness range and clutching. The CL3151 is built for 1-3/4 inch to 2 inch doors, while the Dexter C1000 Entry/Office covers 1-3/8 inch to 1-3/4 inch and uses a clutching lever. If the opening is a 2 inch door, the CL3151 is the one that reaches; if it is 1-3/8 inch, the Dexter is the one that fits.
9) The door needs to stay locked from outside at all times with free egress, not office function. What should be ordered instead of the CL3151?
That is storeroom function, not entrance/office. On the CL3151 the outside lever is controlled by a push turn button and the inside lever is always free, so a user can leave the outside lever unlocked. For an outside lever that stays locked, 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. Both are Grade 2 where the CL3151 is Grade 1.
10) The opening is a classroom door. Is the CL3151 the right Corbin Russwin lock, or should a different function be specified?
The CL3151 is Entrance/Office function (ANSI F109), where a push turn button on the inside controls the outside lever. Classroom function keys the outside lever from the corridor side with no inside button, which is what most school districts specify. The Dexter C1000 Series Classroom lever lock is Grade 1 classroom function with a clutching lever for 1-3/8 inch to 1-3/4 inch doors, and the Dexter C1000 Classroom Security version adds inside key control of the outside lever on the same Grade 1 platform. Cal-Royal also builds the AG03 classroom lever with a 6-pin Schlage C keyway and a 2-3/4 inch backset, matching the CL3151 backset.
11) The facility keys everything on Schlage C. Does that rule out the Corbin Russwin CL3151?
Not necessarily. The CL3151 ships with a conventional 6-pin cylinder in the L4 keyway and also accepts Schlage LFIC, and it can be ordered less conventional cylinder or less core so a house cylinder goes in at the door. If the preference is a lock factory-supplied on Schlage C, Cal-Royal builds the AG00 entrance lever with a 6-pin Schlage C keyway keyed different on a 2-3/8 inch backset, and the AG03 classroom lever with a 6-pin Schlage C keyway on a 2-3/4 inch backset. Note the AG00 backset is 2-3/8 inch against the 2-3/4 inch backset of the CL3151, so the door prep is not interchangeable.
12) Is a Grade 1 cylindrical lever like the CL3151 overkill for an office suite, or should I go Grade 2?
It comes down to traffic and abuse. The CL3151 is Grade 1 with the patented T-Zone construction, where the aligning and latch tubes interlock into a torque-resistant T at the point where someone hangs on the lever - tested past 15 million cycles. That is the case for a school corridor, a hospital, or a tenant entry that gets kicked and pulled all day. For a low-traffic interior office door with the same Entrance/Office function, a Grade 2 lever such as the Falcon B511CP6D or the Hager 2525 covers it for less lock. The Dexter C1000 Entry/Office is the Grade 1 alternative if you need heavy duty but your doors run 1-3/8 to 1-3/4 inch rather than 1-3/4 to 2.
13) What finishes does the Corbin Russwin CL3151 come in, and which one matches the rest of my building?
Twelve: 605 bright brass, 606 satin brass, 611 bright bronze, 612 satin bronze, 613 satin bronze oil-rubbed, 618 bright nickel, 619 satin nickel, 625 bright chrome, 626 satin chrome, 722 black oxidized bronze oil-rubbed, plus BSP black suede and WSP white suede powder coat. If you are matching existing commercial hardware, it is almost always 626 satin chrome - that is the default across most commercial specs and the one Corbin Russwin also carries in the Microshield antimicrobial coating.
14) I need a matching dummy or passage lever to go with a keyed Corbin Russwin lever on the same suite - what pairs with it?
The CL3151 is the keyed Entrance/Office lock; the CL3100 Series runs 18 functions, so the passage and dummy trim for the same lever and rose come from that same series and will match your Armstrong, Newport, or Princeton lever exactly. If a visual match across brands is not required on a back-of-house door, a Grade 1 dummy such as the BEST 9K Series 1DT or a Grade 1 passage like the Falcon K101 will do the job, but the lever profile and rose will not line up with the Corbin Russwin openings.
15) Can I get a batch of CL3151 locks keyed alike so one key opens every door in the unit?
Yes - keyed alike is one of the keying selections, alongside keyed different (the standard) and none if you are supplying your own cores. There is a key code field on the order, so if you are extending an existing system, put the code in and the locks come cut to it rather than arriving on their own random bitting.
16) Is there a lighter-duty entrance/office lever lock that costs less to standardize on than a Grade 1 Corbin Russwin CL3151?
For openings that do not need Grade 1, the Falcon B511CP6D is a Grade 2 medium-duty cylindrical lever lock in the Entry/Office function, the same function as the CL3151. The Cal-Royal AUS00 is a Grade 3 Entrance/Office lever lock with a solid brass forged body, built for 1-3/8 inch to 1-3/4 inch doors. The CL3151 is Grade 1 and rated for 1-3/4 inch to 2 inch doors, so a Grade 3 option like the AUS00 will not reach a 2 inch door leaf. Interior office and tenant doors with moderate traffic are where the lighter grades are normally specified; main entrances and high-traffic corridors are where the Grade 1 body earns its place.
17) What Grade 1 lever lock matches the CL3151 on the non-locking doors of the same job?
For corridor and closet doors that never lock, the CL3151 is the wrong function since it is keyed with a single cylinder. Falcon builds two Grade 1 heavy-duty passage lever locks: the K101, which is fire rated and covers 1-3/8 inch to 2-1/4 inch doors with non-handed levers, and the T101, a Grade 1 heavy-duty passage lever with pressure release technology. Design Hardware X75 is a Grade 1 passage lever lockset for 1-3/4 inch doors. All three keep the same Grade 1 body class as the CL3151 so the traffic rating stays consistent across the opening schedule.
18) Can a dummy lever trim be used in place of a CL3151 on an inactive leaf?
No. A dummy trim has no latch and no locking mechanism at all, so it cannot secure an opening. The CL3151 is a keyed cylindrical lock with a deadlocking latchbolt operable by lever from either side. For the inactive leaf of a pair, order dummy trim on purpose: the BEST 9K Series 1DT is a Grade 1 heavy-duty single dummy trim cylindrical lever, and the Accentra 455LN Augusta is a Grade 1 heavy-duty single dummy cylindrical lever from the 5400 Series. The BEST 7KC Series 1DT is the Grade 2 medium-duty single dummy equivalent.
19) Is a keypad lever lock a substitute for a keyed CL3151 entrance/office lock?
They solve different problems. The CL3151 uses a conventional 6-pin cylinder in the L4 keyway and integrates into an existing facility key system. A keypad lever is credential-free: the Lockey 2835 is a mechanical pushbutton keyless lever lock with passage function and ADA compliance for doors 1 3/16 inch to 2 inch, 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 Delaney LP250 is a Grade 2 electronic keypad leverlock. Choose the keypad when the door should not be on the key system at all; choose the CL3151 when the door needs to key into the master.
20) Will a residential grade entry lever hold up in the same corridor as a Corbin Russwin CL3151?
The CL3151 is a Grade 1 commercial lever lock with a steel, zinc dichromated body. Residential-grade entry levers are built to a different duty class: the Kwikset 200BRNL Breton passage lever is Grade 3 for 1-3/8 inch to 1-3/4 inch doors, the Master Lock BC Series RL01 is a Grade 3 keyed entry lever, and the Callan Artino is a Grade 3 entrance leverset. Those are made for dwelling-unit interiors, and none of them carry the Grade 1 commercial rating or the 1-3/4 inch to 2 inch door range of the CL3151. On a shared corridor or a building entrance in a multi-family property, the Grade 1 lock is the one written into the spec.
21) The bathroom and patient room doors need privacy, not entrance/office. What replaces the CL3151 there?
Privacy function locks from the inside with no key on the outside, which the CL3151 does not do since it is a keyed single-cylinder entrance/office lock. The Arrow MK02-TA is a Grade 1 fire-rated privacy cylindrical lock with a Tudor knob for 1-3/4 inch to 2 inch doors, the same door thickness range the CL3151 covers, though it is a knob rather than a lever. Hager 2540 is a Grade 2 privacy cylindrical lock with the Withnell lever for 1-3/8 inch to 2 inch doors, and Kwikset 300BRNL Breton is a Grade 3 privacy lever for 1-3/8 inch to 1-3/4 inch doors. Where ADA lever operation is required, the lever versions are the ones to look at.
22) What Grade 1 lock should be used on a mechanical room or utility door where the CL3151 entrance/office function is not appropriate?
Entrance/office function lets a user leave the outside lever unlocked with the turn button, which is not what a mechanical or utility room wants. The Dexter C1000 Series Asylum lock (ANSI F87) is a Grade 1 cylindrical lock in the asylum, institution and utility function for doors 1-3/8 inch to 2 inch, which overlaps the 1-3/4 inch to 2 inch range of the CL3151. Arrow also builds the MK33-BD-CS, a Grade 2 heavy-duty asylum cylindrical lock with a ball knob and a conventional Schlage C keyway cylinder.
23) Which rose size on the CL3151 will cover the wear ring my old knobsets left on the doors?
The D rose at 3-1/2 inch diameter is the standard and the largest of the four, so it hides the most. Below that are the E rose at 3-1/8 inch square and the C and K roses at 2-3/4 inch diameter. If you are replacing knobs on painted or veneer doors and do not want to refinish, take the D.
24) Is there an antimicrobial version of the CL3151 for a hospital or school?
Yes. The CL3100 Series is offered with Microshield antimicrobial coating across 11 hardware finishes, 626 satin chrome included. That is the version to spec for patient rooms, clinics, and K-12 corridors where the lever is a high-contact surface.
25) Will the CL3151 hold up in an exterior or damp location like a mechanical room or a loading dock?
The lock body substrate is steel, zinc dichromated for corrosion resistance, which is the treatment that matters in a humid or washdown-adjacent space. Pair that with a finish suited to the exposure - 626 satin chrome is the usual commercial pick.
26) Does the Corbin Russwin CL3151 count toward LEED credit on a green building project?
It is made from 68 percent post-consumer recycled content under LEED MR credit 4. That is the figure your submittal package needs when the spec calls for recycled content documentation on Division 08 hardware.
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Does the Corbin Russwin CL3151 NZD 626 come with a warranty?
Absolutely. The Corbin Russwin CL3151 NZD 626 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
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