Simplex LD452

Light-Duty Combination Lock

Reviews (2)


Simply Simplex. The Simplex LD452 light-duty combination lock provides simple coded access to your doors with a quick knob turn. Forget the hassle of managing and sharing keys with this simple 100% keyless lock.

In stock

SKU: LD4523532D41
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For more information or ordering assistance, please call our Commercial Project Specialists at 877-439-5377 ext 9003

  • Light-duty, cost-effective cylindrical access lock
  • Satin stainless (32D) (630) finish
  • Supports one (1) single access PIN code
  • Pass-code can be 3-7 characters in length.  Over 8000 possible combinations
  • Smartly designed for wood and metal swing doors
  • Auto-locking with latch holdback (you can remove the latch hold-open feature easily in the field)
  • Simple programming of your access code via keypad once lock is removed from the door
  • Swift do-it-yourself installation with easy to follow instructions and full scale mounting template
  • Two 2 1/2″ x 8″ cover trim plates and two 2″ gaskets supplied.  Cover plates for retrofitting 2 1/8″ bore (door hole) left from existing door knob or lever locks
  • No Battery; fully mechanical
  • Backset:  2 3/4″  How do I measure?  (Click here for this same lock with 2 3/8″ backset)
  • Vandal resistant
  • 1-year manufacturer warranty

GoKeyless™ is a factory trained and authorized Kaba Simplex® dealer. Sales, service, support, valid warranties. It's why thousands of clients around the world choose GoKeyless™ for their security and access control needs each year. Turn office, and other light traffic commercial doors keyless with this upscale new keypad lock by Kaba Access.  At a price where you want it, the new Simplex LD450 series allows you to manage your day's business instead of managing keys.  You may have cheated losing your keys or the accidental "I locked myself out!" up to now, but why leave it to chance any longer.  For less than half the cost of an iPod or internet-enabled phone, you can have this light-duty, wire and cable free keyless lock on your door in minutes.  You'll never have to worry about whether you remembered your keys ever again!  Don't be fooled by similar looking locks at a cheaper price.  This one by Kaba easily passes the test in durability, and reliability.  The inside and outside housings, as well as the knob, are solid cast.  The push-buttons are all metal.  These are important construction concerns for long-term operation, and for installing the lock on a perimeter door, or any outside entryway that may be impacted by weather.  The LD450 endures.
Exterior Dimensions

2 (W) x 6 1/16 (H) x 2 3/16 (D) in. (without trim plate)

Inside Dimensions

2 (W) x 6 1/16 (H) x 2 1/8 (D) in. (without trim plate)

Door Thickness Minimum

1 3/8 in.

Door Thickness Maximum

2 1/2 in.

Code Length

3 to 7 Digits

Code Capacity




Door Prep

Standard 2 1/8 in. Cross-Bore, Edge Bore: 1 in., Through-Bolt Hole(s)

Door Stile Width

Minimum 3 1/2 in.


Cast knob, Solid cast housings




Kaba Simplex

Lock Features

Passage Mode

Handle Type


Door Opening


Access Type

Keypad – Digits


Satin Stainless


2 3/4 in.


4 lbs


1 Year Manufacturer

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3 out of 5 stars

2 reviews

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What others are saying

  1. Do not but this lock


    It would not work the buttons would stick and are very hard to press if locked out you could not get in…

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  2. David, Longmont, CO

    We are In the Access Control Service business. We have vendors available in Denver area to purchase locks from. We found that we get great customer support and faster service from GoKeyless and their ordering process is simple and convenient.

    (0) (0)

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