Alarm Lock DL4500 Series Grade...
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$890.48
Alarm Lock Alarm Lock DL4500DB Series - Mortise Privacy Pin Locks with Deadbolt ALA-DL4500DB

Alarm Lock DL4500 Series Grade 1 Electronic Mortise Deadbolt with 2,000 User Codes and Privacy Keypad

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Model: DL4500DBR-US26D
$1,826.92
$890.48

In Stock (leaves warehouse same day if ordered before 3pm ET)

$1,826.92
$890.48
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Alarm Lock DL4500 Series Grade 1 Electronic Mortise Deadbolt with 2,000 User Codes and Privacy Keypad

Professional Electronic Access Control with Advanced Privacy & Security Features

Electronic battery operated digital mortise lock with privacy and residency features. Privacy mode locks out all basic users for a programmed amount of time. Residency feature allows exiting without having to lock the door. The Alarm Lock DL4500 Series delivers professional-grade electronic mortise lock security with Grade 1 commercial rating and comprehensive access control capabilities. This battery-operated electronic deadbolt supports up to 2,000 user codes with 40,000 event audit trail, featuring weatherproof construction that operates reliably from -31°F to +151°F. The integrated privacy pushbutton provides instant lockdown capability with 12-button metal keypad interface and 2-3/4" backset mortise installation for doors ranging from 1-5/8" to 1-7/8" thickness.

Professional Features & Benefits

  • Door Compatibility: Designed for 1-5/8" to 1-7/8" door thickness with 2-3/4" backset mortise installation for versatile commercial applications.
  • Heavy-Duty Performance: 5AA battery operation provides up to 60,000 cycles for reliable long-term performance in high-traffic environments.
  • Advanced Access Control: Supports 2,000 user codes with comprehensive 40,000 event audit trail for enterprise-level security management and accountability.
  • Grade 1 Commercial Construction: Professional-grade durability and security performance certified for demanding commercial environments and high-traffic applications.
  • Weatherproof Operation: Operates reliably in extreme temperatures from -31°F to +151°F for versatile installation environments including outdoor applications.
  • Privacy Pushbutton Lockdown: Instant security activation from inside with programmable lockout duration for emergency situations and enhanced privacy control.
  • Professional Keypad Interface: Electronic 12-button metal keypad with multi-status LED indicators providing clear operational feedback and durable input interface.
  • Complete Installation Package: Includes 1-1/4" x 4-7/8" strike plate for comprehensive mortise deadbolt installation.

Technical Specifications

  • Door Thickness: Fits 1 3/8" to 1 7/8"
  • Strike: 1 1/4" x 4 7/8" strike included
  • Handing: Specify RH or LH when ordering; lock is reversible in the field
  • Power: 5 AA alkaline batteries (included)
  • Keypad: All metal, 12 button. All functions programmed through keypad.
  • Compliances: Steelcase lock body meets BHMA specifications for Grade 1 locks. UL Listed to the 10C Positive Pressure Specification. ADA compliant levers
  • Functions: Deadbolt function: stainless steel deadbolt with 1" projection, latchbolt with 3/4" projection & deadlocking latch. Deadbolt may be projected from key cylinder (outside) or turn-piece (inside).
  • Cylinder: 1 3/8" mortise cylinder supplied. Accepts 1 3/8" to 1 1/2" mortise cylinder.

Installation & Operation

  1. Verify electrical requirements and confirm 5AA battery pack compatibility before proceeding with installation.
  2. Disconnect any existing power sources and follow all applicable electrical codes and safety procedures during installation.
  3. Mount the mortise lock unit in the door preparation ensuring adequate clearance for 1-5/8" to 1-7/8" door thickness and proper alignment.
  4. Install the included 1-1/4" x 4-7/8" strike plate with proper alignment to the 2-3/4" backset mortise mechanism according to manufacturer specifications.
  5. Configure operational settings including user codes, audit trail parameters, and privacy pushbutton lockdown duration per application requirements.
  6. Install 5AA battery pack and test all functions including normal operation, keypad response, privacy lockdown, and audit trail recording capabilities.
  7. Complete final inspection and document settings. Refer to manufacturer documentation for complete programming instructions, user code management, and troubleshooting procedures.

Professional Applications

  • Educational Facilities & Classroom Security
  • Commercial Office Buildings
  • Healthcare & Medical Facilities
  • Government & Municipal Buildings
  • Multi-Tenant Properties
  • Professional Services Offices
  • Emergency Lockdown Applications

Why Choose Alarm Lock Quality?

Alarm Lock DL4500 Series locks deliver professional-grade security with Grade 1 commercial rating and weatherproof construction rated for extreme temperatures from -31°F to +151°F. The comprehensive 40,000 event audit trail and 2,000 user code capacity provide enterprise-level access control, while the reliable 5AA battery operation ensures consistent 60,000 cycle performance in demanding commercial environments.

Product Specs

Series:
DL4500 Series
Grade:
Grade 1
Keypad:
Electronic, 12 metal buttons
Power:
Battery Operated
Product Type:
Mortise Locks
Application:
Pushbutton Keypad
Lock Type:
Mortise
Product Group:
Mechanical Locks
Product Subgroup:
Mortise Locks and Trim
Subcategory:
Mortise Locks
Reader Type:
Keypad
Commercial/Residential:
Commercial
Battery Operated:
Yes
Batteries:
5AA battery-pak operated, 60,000 cycles, typ
Audit Trail:
Yes
Electronic:
Yes
User Codes:
2,000
Weather Proof:
Yes
Product Attribute:
Electronic Locks
Product Model:
DL4500
Product Function:
Deadbolt
Door Thickness Range:
1-5/8" to 1-7/8"
Door Strike:
1-1/4" x 4-7/8" Strike included
Product Category:
Electronic Locks
Backset (Distance):
2-3/4"
Department:
Door Hardware

Alarm Lock DL4500DBR-US26D – Frequently Asked Questions

1) Will the Alarm Lock DL4500 electronic mortise deadbolt fit a 1-3/4 inch commercial door?
Yes. The DL4500 covers a door thickness range of 1-5/8 to 1-7/8 inches, so a standard 1-3/4 inch commercial door sits in the middle of that window. It mortises at a 2-3/4 inch backset. Thinner 1-3/8 inch interior doors fall outside the range, so on an older wood interior opening you need a different lock.
2) Do I have to order the DL4500 left hand or right hand, and can I flip it on site?
Handing gets specified on the order, left hand or right hand, but the lock is reversible in the field, so a mis-specified unit can be corrected at the door rather than returned. Keying is also a required choice at order time: keyed different, keyed alike, or to a specific key code you supply.
3) Will the DL4500 deadbolt latch into the strike prep already cut in my frame?
The DL4500 ships with a 1-1/4 by 4-7/8 inch strike, which is the common ANSI-style deadbolt strike footprint. The stainless deadbolt throws 1 inch and the latchbolt projects 3/4 inch with deadlocking action, so the frame needs pocket depth for a full 1 inch bolt. If your existing frame is prepped for a 1-1/4 by 4-7/8 strike, the included plate drops into it.
4) What mortise cylinder does the Alarm Lock DL4500 take, and is one included?
A 1-3/8 inch mortise cylinder comes with the lock, and the case accepts 1-3/8 to 1-1/2 inch mortise cylinders. That means you can pull the supplied cylinder and drop in your own keyway to bring the opening into an existing master key system, as long as the length falls in that range. The bolt can be thrown from the outside key cylinder or from the inside turn piece.
5) Can the DL4500 keypad lock go on an exterior door in a cold climate?
Weatherproof construction, with rated operation from -31F to +151F, so it holds up on exterior openings through winter and on sun-loaded south-facing doors. Power is a 5AA battery pack good for roughly 60,000 cycles, so there is no wiring to run to the opening.
6) How many people can I give codes to on an Alarm Lock DL4500, and does it record who came in?
Up to 2,000 user codes, with a 40,000 event audit trail you can pull to see which code opened the door and when. That is enough to code every resident or staff member in a mid-size building individually instead of sharing one code, and to delete a code when someone leaves rather than rekeying. All programming is done at the keypad, so no software or laptop is needed at the door.
7) Is the Alarm Lock DL4500 rated for a fire door and does it meet Grade 1?
The lock body meets BHMA Grade 1 specifications and the product is UL Listed to the 10C positive pressure specification, which is the listing a fire-rated opening assembly is tested under. For a facility standardizing across rated openings, that pairs with the 2,000 user codes and audit trail on the same hardware.
8) What is a keypad mortise lock equivalent to the Alarm Lock DL4500 with a mechanical key override?
The BEST 45HZ EZ Series is an electronic keypad mortise lock with key override function, so credentials can be entered on the keypad or the opening can be keyed open mechanically. The Alarm Lock DL4500 is an electronic mortise deadbolt with a 12-button metal keypad and holds 2,000 user codes, and its deadbolt may be projected from the key cylinder outside or the turn-piece inside.
9) If the opening needs a card credential rather than a keypad code, what mortise lock replaces the DL4500?
The DL4500 reads codes only - its reader type is a keypad. For card-based access on a mortise prep, the Dormakaba E-Plex E5086 is an electronic pushbutton and card mortise lock in entry/egress function, and the TownSteel FME-2000 Series is a Grade 1 heavy duty mortise lockset with RFID technology. The Dormakaba LX-I-M002 Saffire adds BLE mobile access with an RFID reader.
10) I need a battery-free electronic mortise lock - what is the alternative to the Alarm Lock DL4500?
The DL4500 runs on a 5AA battery-pak rated about 60,000 cycles. The Dormakaba PowerPlex P2066 Series is a mortise lock, and the BEST 45HW Series is a wired electromechanical mortise lock running on 12V or 24V operation, which ties the opening to building power instead of a battery pack.
11) Is a Sargent 4874 a substitute for the Alarm Lock DL4500?
They are both mortise deadbolts on a 2-3/4 inch backset, but they operate differently. The Sargent 4874 is a double cylinder mortise deadbolt, keyed on both sides. The Alarm Lock DL4500 is battery operated with a 12-button metal keypad and 2,000 user codes, so access is granted by code rather than by key on the outside. Choose the 4874 where a purely mechanical, keyed-both-sides deadbolt is wanted.
12) For a classroom opening, should I specify the DL4500 or a classroom-function mortise lock?
The Alarm Lock DL4500 is a deadbolt-function electronic mortise lock with a privacy pushbutton that locks out basic users for a programmed time. For a dedicated classroom function, the Corbin Russwin ML2003 is a Grade 1 mortise classroom lockset and the Cal-Royal NM8070 is a Grade 1 heavy duty classroom mortise lockset with auxiliary deadlatch, both for 1-3/4 inch doors. The TownSteel FME-4000 is an electronic intruder classroom mortise lockset if the classroom function needs to be electronic.
13) Does the Schlage CO-100 keypad mortise lock do the same job as the Alarm Lock DL4500?
Both are standalone electronic mortise locks read by keypad. The Schlage CO-100 is Grade 1 in privacy function for 1-3/4 inch doors. The Alarm Lock DL4500 is Grade 1 with a deadbolt function, a privacy pushbutton for programmed lockout, 2,000 user codes, and weatherproof construction for doors 1-5/8 inch to 1-7/8 inch. Door thickness and whether the opening needs a throwing deadbolt decide between them.
14) Which electronic mortise lock should I use if the access system needs to be managed from a phone or wirelessly rather than at the keypad?
All DL4500 functions are programmed through its 12-button metal keypad at the door. For remote or mobile management, the Schlage Electronics LEMD-GRW is a Grade 1 ENGAGE Series wireless mortise lock with a 125kHz proximity reader and mobile-enabled deadbolt with LED, and the Schlage LEBMB-ADD is a Grade 2 mobile-enabled mortise lock with push button and LED in privacy, office, and apartment functions.
15) For an access control system tied into the building, what mortise lock replaces a standalone unit like the DL4500?
The Alarm Lock DL4500 is a standalone battery-operated unit. For openings wired to an access control panel, the Command Access ML190 Series is a heavy-duty motorized storeroom mortise lock with field selectable EL/EU operation on 24VDC, and the Schlage L9092EU electric lock/unlock outside lever mortise lock is keyed outside with request to exit on 12/24VDC.
16) Is a keypad deadbolt like the DL4500 enough on its own, or do I still need a latching lockset on the door?
The DL4500 is a deadbolt-function mortise lock: stainless deadbolt with a 1 inch throw plus a 3/4 inch deadlocking latchbolt, operated by a 12-button metal keypad, key cylinder, or inside turn. It secures and latches the opening by itself. What it does not give you is lever trim for normal passage traffic, so on a door people push through all day, a keyed lever mortise lockset such as the Cal-Royal NM8050 office/entrance or NM8080 storeroom is the usual choice, with this used where you want code-based deadbolt control instead.
17) What do the privacy and residency features on the DL4500 actually do?
The inside privacy pushbutton locks out all basic user codes for a programmed length of time, so someone in the room cannot be entered on by staff or other code holders until it expires. The residency feature lets an occupant leave without having to lock the door behind them. That combination is why this one turns up on dorm, exam room, and multi-tenant openings rather than general corridor doors.
18) What else could I use instead of the Alarm Lock DL4500 for keypad access on a mortise-prepped door?
A few standalone keypad mortise locks cover the same job with different trim. The Schlage CO-100 in the MS-40-KP configuration is a keypad-reader mortise lock in privacy function and Grade 1. The Dormakaba E-Plex 2066 is a pushbutton keyless mortise lock for wide stile doors. The BEST 45HZ EZ Series is an electronic keypad mortise lock with key override. Where you want credentials rather than codes, the TownSteel FME-2000 is a Grade 1 RFID classroom mortise lockset. The DL4500 is the one of that group built as a deadbolt with privacy lockout rather than a lever lockset.
19) I want a mortise deadbolt but not an electronic one. What is the mechanical equivalent?
If codes and an audit trail are not worth the battery maintenance, the Sargent 4874 is a double cylinder mortise deadbolt on the same 2-3/4 inch backset the DL4500 uses, so it suits the same door prep dimension. Kaba Ilco also offers the 185 Series mortise lock in deadbolt function with no handing to specify. You give up the 2,000 user codes and the ability to delete a credential without rekeying.
20) Does the DL4500 need power run to the door or a network connection?
No wiring. It runs on a 5AA alkaline battery pack that ships with the lock, typically good for 60,000 cycles, and every function including user codes and the privacy lockout duration is programmed at the 12-button metal keypad. Nothing has to be pulled to the opening, which is what makes it workable on retrofit doors and detached buildings where a wired lock like the BEST 45HW 12V/24V mortise lock would mean running cable.
21) What can I use instead of the DL4500 on a 1-3/4 inch door?
The Alarm Lock DL4500 fits doors 1-5/8 inch to 1-7/8 inch thick. Mortise locks in the set rated specifically for 1-3/4 inch doors include the Schlage CO-100 standalone electronic mortise lock in privacy function with a keypad reader, and the TownSteel FME-4000 Series electronic intruder classroom mortise lockset with RFID, both Grade 1.
22) What is a simpler mechanical mortise deadbolt if I do not need audit trail or user codes?
The Kaba Ilco 185 Series is a mortise lock in deadbolt function with no handing, sold in a single pack. The Alarm Lock DL4500 adds electronic access control - 2,000 user codes and a 40,000 event audit trail - and is ordered as Left Hand or Right Hand. If the opening only needs a bolt thrown and no record of who opened it, the 185 Series covers it.
23) Which mortise lock gives me a lever with a latchbolt for everyday traffic instead of a deadbolt-only opening?
The DL4500 is deadbolt function. Where the door needs a latch retracted by a lever on every pass, the Accentra 8805FL is a Grade 1 storeroom mortise lock with an Arcadia lever, the Cal-Royal NM8050 is a Grade 1 office/entrance mortise lockset with auxiliary deadlatch, and the Hager 3850E is a Grade 1 office mortise lock with lever and escutcheon on a 2-3/4 inch backset.
24) Is the Codelocks CL2255 an alternative to the Alarm Lock DL4500?
The Codelocks CL2255 is an electronic tubular mortise latch in a brushed steel finish, rated medium duty. The Alarm Lock DL4500 is a Grade 1 commercial electronic mortise deadbolt rated for 60,000 cycles on a 5AA battery-pak. The CL2255 suits lighter traffic and a latch-only opening; the DL4500 is the one to specify where a commercial Grade 1 deadbolt is required.
25) What is the difference between the Alarm Lock DL4500 and the Dormakaba E-Plex 2066?
Both are electronic pushbutton keyless mortise locks. The Dormakaba E-Plex 2066 Series is built for wide stile applications. The Alarm Lock DL4500 is a Grade 1 mortise deadbolt for doors 1-5/8 inch to 1-7/8 inch thick on a 2-3/4 inch backset, weatherproof, with a 1-1/4 inch by 4-7/8 inch strike included. Door construction is the deciding factor.
26) Can a Sargent 130KB thumbturn or a Falcon MESC600DT be used in place of the DL4500?
No. The Sargent 130KB is a mortise thumbturn and the Falcon MESC600DT is a dummy escutcheon lever trim for M9900 Series exit devices - both are trim pieces without a locking mechanism. The Alarm Lock DL4500 is a complete battery-operated electronic mortise deadbolt with keypad and a strike included.
27) Is there a touchscreen keypad mortise lock as an alternative to the DL4500 metal pushbutton keypad?
The Alarm Lock DL4500 uses an all-metal 12-button keypad and is weatherproof. The Accentra NTM623-NR nexTouch Generation 3 is a Grade 1 mortise lock with a capacitive touchscreen keypad, no deadbolt, with cylinder override - so it trades the physical buttons for a touch surface and drops the deadbolt.
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Can I return it if it doesn’t work for me?
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Does the Alarm Lock DL4500DBR-US26D come with a warranty?
Absolutely. The Alarm Lock DL4500DBR-US26D is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Alarm Lock DL4500DBR-US26D?
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