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DORMA C530 Series Lockset
Grade 2 Cylindrical Locksets
The C500 key-in-lever locksets are built with a high performance cylindrical chassis for all applications where ANSI/BHMA A156.2 Series 4000 Grade 2 products are required. These aesthetically versatile locks are available in two lever designs.
Locks ANSI/BHMA Grade 2 certified.
- Ten different functions
- Four standard finishes, two optional finishes
- Simple installation
- Optional patented key system available
- Easily adjustable for doors from 1-3/8”- 1-13/16” thick
Product details
Recommended applications
The C500 Series lockset can be recommended for applications like hotels, apartments, churches, municipal buildings, retails complexes, offices and warehouses.
Product Downloads
Manufacturer Resources
Product Specs
- Product Group:
- Mechanical Locks
- Series:
- C500 Series
- Grade:
- Grade 2
- Keyed Function:
- Non-Keyed
- ANSI/BHMA:
- F77A
- Product Subgroup:
- Bored Locksets
- Product Type:
- Cylindrical Locks
- Subcategory:
- Cylindrical Locks
- Keyed:
- No
- Commercial/Residential:
- Commercial
- Handle Type:
- Lever
- Product Attribute:
- Cylindrical Locks
- Product Model:
- C530
- Product Function:
- Patio/Privacy
- Door Hand Direction:
- Dependent on lever selection
- Door Thickness Range:
- 1-3/8" to 1-3/4"
- Product Category:
- Mechanical Locks
- Backset (Distance):
- 2-3/4"
- Department:
- Door Hardware
Dormakaba C530-LRC-626 – Frequently Asked Questions
1) What does the Dorma C530 patio function actually do, and is there a key on either side?
The C530 is a non-keyed patio/privacy lock. Both sides get a lever, with the locking done from the inside only, so there is no cylinder and no key on either face. That makes it right for patio doors, apartment bedroom and bath doors, and any opening where the room occupant controls the lock and nobody needs to key it from the corridor. If you need key access from the outside, this is the wrong function in the C500 family.
2) Will the Dorma C530 lever lock fit a 1-3/8 inch door as well as a standard 1-3/4 inch commercial door?
Yes on both. The C530 chassis is rated for doors 1-3/8 to 1-3/4 inches thick, which covers the standard 1-3/4 inch commercial leaf and the thinner 1-3/8 inch interior doors common in older apartment stock. One part number handles a mixed building, so you are not buying two SKUs for the same job.
3) Does the Dorma C530 use a 2-3/4 inch backset, and will it drop into my existing door prep?
The C530 ships with a 2-3/4 inch backset latch, the 15280 with a 1 inch square corner faceplate, paired with a 5001 ANSI strike measuring 1-1/4 by 4-7/8 inches. If your doors are already bored at 2-3/4 and the frames carry ANSI 4-7/8 strike prep, it goes straight in. If the openings are bored at 2-3/8, which is the other common backset, this latch will not reach.
4) Is the Dorma C530 rated for commercial use, and what grade is it?
ANSI/BHMA Grade 2, certified to A156.2 Series 4000, with an F77A function designation. It is a commercial-duty cylindrical lock, which is what most spec writers call for on apartment, hotel, office and church interior openings where Grade 1 is not required.
5) What is the closest Grade 2 privacy lever equivalent to the Dorma C530 patio lockset?
The Orca Hardware OCL240 is the nearest match in the same class. Both are non-keyed cylindrical privacy locksets carrying ANSI/BHMA Grade 2, and the OCL240 is a medium duty privacy/bed/bath lever. The C530 is part of the Dormakaba C500 Series with a 2-3/4 inch backset and a 1-3/8 inch to 1-3/4 inch door thickness range, and comes in six finishes across LC, LG and LR lever styles.
6) I need a privacy lever rated Grade 1 instead of the Dorma C530 - what should I order?
The Cal-Royal CAL20 Calypso Series is a Grade 1 extra heavy duty privacy/bed/bath lock and accepts doors from 1-3/8 inch to 2 inch thick, a wider range than the C530's 1-3/8 inch to 1-3/4 inch. The C530 is certified to ANSI/BHMA Grade 2 under function F77A. Use the CAL20 where the spec calls out Grade 1 for a bathroom or bedroom opening.
7) The door does not need to lock at all - what is the passage version to use instead of the C530?
For a corridor, hall or closet door with no locking required, the Orca Hardware OCL210 is a Grade 2 medium duty passage cylindrical lockset, and the Marks USA 195N Survivor Series is a Grade 1 ADA compliant passage lever. The C530 is a patio/privacy function with a non-keyed inside lock, so it is the wrong pick where the door must always be free to open from both sides.
8) Can I use the Dorma C530 on an exterior entry door that needs a key?
No. The C530 is a non-keyed patio/privacy lockset with no cylinder. For a keyed entry opening, the Orca Hardware OCL250 is a Grade 2 entrance cylindrical lockset, the Stanley Security QCL150 is an entry lever with a 2-3/4 inch square backset latch and 4-7/8 inch x 1-1/4 inch ASA strike matching the C530's strike size, and the Marks USA 195RAB is a Grade 1 Survivor Series entry clutched lever supplied less core.
9) Will the Dorma C530 work on a 2 inch thick door?
No. The C530 is listed for doors 1-3/8 inch to 1-3/4 inch thick. For a 2 inch door in a comparable non-keyed lever, the Cal-Royal CAL20 privacy lock and CAL30 passage lock both cover 1-3/8 inch to 2 inch, and the Lockey 2830 keyless passage knob covers 1-1/8 inch to 2 inch.
10) Do I need to specify handing when ordering a Dorma C530 lockset?
Handing on the C530 follows the lever you pick, not a separate hand code on the chassis. Pick your lever style and finish and the hand is determined with it. Check which way the door swings before you place the order rather than after the box lands on site.
11) What lever styles and finishes can I get the Dorma C530 in so it matches the rest of my building?
Three lever styles, LC, LG and LR, each offered in six finishes: 605 bright brass, 606 satin brass, 613 oil rubbed bronze, 619 satin nickel, 625 bright chrome and 626 satin chrome. Every lever style is available in all six, so you can hold one lever design across passage, privacy and keyed openings and keep a single finish running through the floor. 626 satin chrome is the usual commercial default.
12) I need a Grade 1 privacy lever instead of a Grade 2. What else is there?
The Cal-Royal CAL20 is a Grade 1 extra heavy duty privacy lock with a 1-3/8 to 2 inch door thickness range, so it covers a wider leaf than the C530 and steps the duty level up. Marks USA also lists the 195N as a Grade 1 Survivor Series lever, though that one is passage function, not privacy. For a Grade 2 privacy alternative closer to the C530, the Orca Hardware OCL240 is a medium duty Grade 2 privacy cylindrical lockset.
13) Can I standardize the whole floor on the C500 Series and just change functions door to door?
That is what the series is built for. The C500 family runs ten different functions off the same cylindrical chassis, with the C530 covering the patio/privacy openings. Keep the lever style and finish constant and swap the function per door, and every opening on the floor looks identical while the hardware behind it suits the room. A patented key system is offered on the keyed functions in the family if you want a restricted keyway across the keyed doors.
14) Is there a keypad privacy lock I can use in place of the Dorma C530 for coded access?
Yes, if the opening needs credentials rather than a simple thumbturn. The Schlage CO-100-CY-40-KP is a Grade 1 heavy duty standalone electronic cylindrical lock in privacy function with a keypad, listed for 1-3/4 inch doors, and the Alarm Lock Trilogy 4100 is a Grade 1 electronic cylindrical privacy lock with keypad for 1-5/8 inch to 1-7/8 inch doors. The C530 is a purely mechanical non-keyed lever with no electronics, and it fits doors from 1-3/8 inch to 1-3/4 inch.
15) What looks like a substitute for the C530 but is not?
A few do. The Orca Hardware OCL2170 is a Grade 2 half dummy lever with no latch or chassis at all, so it cannot secure or latch a door. The Marks USA 110AB is a Grade 2 entrance lockset but uses a round knob rather than a lever. The Marks USA 175RF SFIC is a Grade 2 clutched lever on a 2-3/4 inch backset like the C530, but it is a storeroom function keyed lock built for a small format interchangeable core, not a non-keyed privacy set.
16) For a school classroom door, is the Dorma C530 an appropriate lockset?
The C530 is a patio/privacy function intended for openings like hotels, apartments, churches, municipal buildings, retail, offices and warehouses. For classroom openings, the TownSteel XCE-2000 and XCE-9000 are Grade 1 heavy duty electronic classroom cylindrical locksets with keypads for 1-3/4 inch to 2 inch doors, the XCE-9000 being a classroom intruder version, and the Schlage XE360M is a Grade 1 wireless tubular lock in classroom/storeroom function for 1-3/4 inch doors.
17) I want keyless entry without running wire - what mechanical alternative is there to the Dorma C530?
The Lockey 1600 is a heavy duty mechanical keyless knob lock with an adjustable backset and fits doors 1-1/8 inch to 2 inch thick, and the Lockey 2830 is a mechanical pushbutton keyless knob lock with an auto-locking passage function over the same 1-1/8 inch to 2 inch range. Both use a knob rather than the C530's lever, and both are code-entry rather than the C530's non-keyed privacy thumbturn arrangement on a fixed 2-3/4 inch backset.
18) Is there an electronic lever alternative to the C530 that fits the same 1-3/8 inch to 1-3/4 inch doors?
Yes. The Lockey E985 and E995 are electronic keypad lever locks both listed for 1 3/8 inch to 1 3/4 inch doors, the same span the C530 covers. The E985 includes remote control with key override, and the E995 is remote control and battery powered. The C530 is mechanical and non-keyed by contrast.
19) I need a passage lever to match my Dorma C530 privacy locks on closet and corridor doors. What pairs with it?
Stay inside the C500 Series for a visual match, since the passage function uses the same chassis, levers and finishes. If you are sourcing across brands, the Orca Hardware OCL210 is a Grade 2 medium duty passage cylindrical lockset and the Cal-Royal CAL30 is a Grade 1 extra heavy duty passage lock covering 1-3/8 to 2 inch doors. Neither will match a Dorma lever profile, so use them where they are out of sight of the privacy doors.
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Absolutely. The Dormakaba C530-LRC-626 is backed by a manufacturer’s warranty.
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