Deltana CL504ECCNC Commercial Storeroom Interchangeable Core Grade 2, Clarendon Lever Less Cylinder

No. The CL504ECCNC is a less-cylinder lockset, built to take an interchangeable core that you supply and key into your existing system. It is a single cylinder keyed function, so you order the core separately in your keyway and have it pinned to your master key setup before the lock goes on the door. If you don't already run an IC system, a lockset supplied with a conventional cylinder, like the Hager 2580 Grade 2 storeroom lever, is the simpler buy.

It ships with a 2-3/4 inch backset latch. The 2-3/8 inch version is sold separately, so if your existing prep centers the bore 2-3/8 inches off the door edge you need to order that latch rather than force the standard one. Measure from the door edge to the center of the 2-1/8 inch cross bore before ordering.

1-3/8 inch through 2 inch doors. That covers standard 1-3/4 inch commercial doors, older 1-3/8 inch interior doors, and thicker 2 inch slabs without a special kit. Removable through-bolts are part of the package, so the lock pulls together tight across that whole range.

It uses an ANSI 4-7/8 x 1-1/4 inch strike, which is the standard commercial frame prep. If the frame already has that cutout from a previous cylindrical lockset, the strike lines up with no frame work. Residential T-strike or round-corner preps will need the frame modified.

The Deltana CL504ECCNC is a Grade 2 commercial cylindrical leverset supplied less cylinder so an interchangeable core can be dropped in. If a complete keyed lock is preferred, the Hager 2580 is a Grade 2 storeroom cylindrical lock with the Withnell lever and a 1-3/8 inch to 2 inch door thickness range, and the Cal-Royal AG05 is a Grade 2 storeroom lever lockset with a deadlocking latchbolt for doors 1-3/8 inch to 1-3/4 inch. Both cover the same storeroom opening; the Deltana leaves the core choice to the keying program.

No. The Deltana CL504ECCNC is a keyed commercial lever set up for storeroom-style control on doors 1-3/8 inch to 2 inch thick with a 2-3/4 inch backset. A classroom lever such as the Cal-Royal AG03, which is keyed to a 6-pin Schlage C keyway with a 2-3/8 inch backset, is locked and unlocked by key from the outside, and an entrance/office lever such as the Falcon B511CP6D or the Hager 2525 Grade 2 entry lock allows the outside lever to be left unlocked. Those are different daily operations even though all mount in the same cylindrical bore.

No. Handing is universal, so the same lockset goes on a left or right hand door and you don't need to stock both. That makes it easier for a property manager buying a batch for mixed openings across a building.

It's a Grade 2 commercial cylindrical lockset with a steel and zinc build, which suits moderate-traffic storerooms, utility closets, and back-of-house doors in apartment and office buildings. For high-abuse openings, stairwells, or a school corridor, step up to a Grade 1 cylindrical such as the Corbin Russwin CL3100 Series or the Falcon K Series.

Two Grade 2 storeroom levers we carry take a conventional cylinder: the Cal-Royal AG05 with a deadlocking latchbolt, and the Hager 2580 with the Withnell lever, which fits 1-3/8 to 2 inch doors the same as the Deltana. Both come ready to key without sourcing a separate core. Stay with the CL504ECCNC only if you want the door on an IC keying system.

The Deltana CL504ECCNC is keyed and built for a secured opening. For a corridor, hall or closet door that must stay unlocked, the Hager 2510 is a Grade 2 passage cylindrical lever for 1-3/8 inch to 2 inch doors, the Falcon B101 is a Grade 2 medium duty non-handed passage lever, and the Arrow GL01 is a Grade 2 non-keyed Sierra lever passage lock for 1-3/4 inch to 2 inch doors.

The Deltana CL504ECCNC is a Grade 2 cylindrical leverset. Where a facility standard calls for Grade 1 cylindrical hardware, the Corbin Russwin CL3100 series includes a Grade 1 vandal resistant, fire rated cylindrical lever for 1-3/4 inch to 2 inch doors, the Falcon K series K101 is a Grade 1 heavy duty fire rated lock for 1-3/8 inch to 2-1/4 inch doors, and the Dexter C1000 series offers Grade 1 keyed functions such as classroom and classroom security. Those Grade 1 examples are non-keyed or different functions, so the keyed function must be confirmed against the door schedule.

The CL504ECCNC is a keyed single cylinder lever that depends on a keying program. To move an opening to code access instead, 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 for 1-1/8 inch to 2 inch doors, and the Delaney LP250 is a Grade 2 electronic keypad leverlock.

The Deltana CL504ECCNC is a commercial Grade 2 steel and zinc cylindrical lever. Grade 3 levers such as the Kwikset 200BRNL Breton passage for 1-3/8 to 1-3/4 inch doors, the Callan Artino 360201 entrance leverset, and the Master Lock RL series keyed entry lever are built to a lighter ANSI/BHMA grade and suit residential and light interior openings. For a commercial storeroom specified at Grade 2, stay with the Grade 2 hardware.

The Clarendon CL504ECCNC is a lever trim, not a knob, so it operates without grasping or twisting, which is what facilities standardizing on lever hardware are after. If you specifically need knob trim on a commercial opening, look at the Arrow MK or HK series cylindrical knob locks instead.

The CL504ECCNC is a functioning keyed lever with a latch. For a fixed inactive leaf or a closet face that only needs matching trim, dummy trim is the substitute: the BEST 7KC series single dummy trim lever is Grade 2 medium duty, the BEST 9K series 1DT is Grade 1 heavy duty, and the Callan Bentley BN5051 is a Grade 2 dummy lever. Dummy trim does not accept a core.