Deltana CL509ECCNC Commercial Classroom Interchangeable Core Grade 2, Clarendon Lever Less Cylinder

No cylinder is included. The CL509ECCNC Clarendon classroom lever ships less cylinder, built for an interchangeable core, so you add a small-format IC core in your own keyway and keying. That is the point of it on a school or campus job: the core drops into the existing master key system without rekeying the lock. It is a single cylinder, keyed-outside function.

It ships with a 2-3/4 inch backset latch. A 2-3/8 inch latch is sold separately, so if your door is bored on the shallower centerline you need to order that latch as a separate line item rather than assuming it is in the box.

Yes, both. The Clarendon CL509ECCNC covers a door thickness range of 1-3/8 inch through 2 inch, so it handles older 1-3/8 inch interior doors, standard 1-3/4 inch commercial doors, and heavier 2 inch leaves without a different part number.

It uses an ANSI strike measuring 4-7/8 x 1-1/4 inches, which is the standard commercial frame prep. If your frames are already cut for ANSI strikes, the lock goes in with no frame work. Doors with a smaller residential T-strike cutout will need the frame modified.

Classroom function means the outside lever is locked and unlocked by key only, and the inside lever always retracts the latch for free egress. There is no inside button or thumbturn, so a student cannot lock the door. If your district wants the teacher to be able to lock the door from inside the room during a lockdown, classroom function will not do that, and a classroom security lock is the function to look at instead, such as the Dexter C1000 Classroom Security.

Step up to the Dexter C1000 Series classroom lever, which is Grade 1 with a clutching lever and is keyed, for doors 1-3/8 to 1-3/4 inch thick. The Deltana CL509ECCNC is Grade 2 and covers 1-3/8 to 2 inch doors, so on a 2 inch door the Deltana is the one that fits.

No. The Deltana CL509ECCNC is a classroom function lever, keyed with a single cylinder on the outside. A classroom security lever such as the Dexter C1000 Series Classroom Security has keyed cylinders that let the lock be secured from inside the room as well. If your specification calls for lockdown from inside, the classroom security version is the one to order.

Handing is not a factor. The lever is universal, so one part covers both left and right hand doors. For a property manager buying a dozen at once that means no sorting on site and no wrong-hand returns.

It is an ANSI/BHMA Grade 2 cylindrical lockset with a steel and zinc body, which suits moderate commercial traffic: offices, multi-family common doors, light-to-medium school and institutional use. For high-abuse corridor doors on a heavy cycle count, a Grade 1 classroom lock like the Dexter C1000 Classroom is the step up.

The Cal-Royal AG03 classroom lever is a Grade 2 lever lock supplied with a 6-pin Schlage C keyway keyed different and a 2-3/4 inch backset, so it matches the Deltana on backset and grade but arrives with a conventional cylinder already fitted. Pick the Deltana CL509ECCNC when you are feeding your own interchangeable cores into an existing master key system, and the AG03 when you just want a working keyed lock out of the box.

It is a cylindrical (tubular) lockset, so the door takes a bored cross-bore and edge bore, not a mortise pocket. If the doors you are replacing hardware on have a mortise lock body cut into the edge, this is not a direct swap.

For non-locking openings alongside the keyed Deltana CL509ECCNC classroom lever, the Hager 2510 is a Grade 2 passage cylindrical lever for 1-3/8 to 2 inch doors, matching the same door thickness range the CL509ECCNC covers. The Falcon B101 is another Grade 2 passage lever with a non-handed design; the Deltana CL509ECCNC is universal handed as well.

The Cal-Royal AG05 is a Grade 2 storeroom lever lockset with a deadlocking latchbolt for 1-3/8 to 1-3/4 inch doors, and the Hager 2580 is a Grade 2 storeroom lever for 1-3/8 to 2 inch doors. Both are always-locked outside functions, where the Deltana CL509ECCNC is classroom function.

A keypad lever removes keys from the equation but changes the function. The Delaney LP250 is a Grade 2 electronic keypad leverlock, and the Lockey 2835 is a mechanical pushbutton keyless lever with passage function for 1-3/16 to 2 inch doors. Neither is a keyed classroom function; if the door must be locked and unlocked by key from the corridor, the Deltana CL509ECCNC classroom lever with an interchangeable core is the correct device.

Two: Brushed Chrome and Polished Brass. If the rest of the openings in the building are satin nickel or oil rubbed bronze, these two will not match, and you would be matching trim from another series.

Removable through-bolts are part of the lock. They give you the option of through-bolting the roses for a stronger pull-off on abuse-prone doors, or removing them for a cleaner install on thinner leaves.

For a door needing trim with no latch, use a dummy trim lever such as the BEST 7KC Series single dummy trim, a Grade 2 non-keyed medium duty unit, or the BEST 9K Series 1DT single dummy trim, which is Grade 1 heavy duty. The Deltana CL509ECCNC is a keyed classroom lockset and always operates a latch.

They serve a different traffic level. The Kwikset 200BRNL Breton passage lever and the Callan Asheville are Grade 3, and the Cal-Royal AUS00 entrance/office lever is Grade 3 with a solid brass forged body. The Deltana CL509ECCNC is a Grade 2 commercial cylindrical lockset in steel and zinc, which is the tier normally written for classroom and institutional openings.