Alarm Lock Trilogy DL3500DB Gr...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$2,425.21
$998.80
Alarm Lock Alarm Lock DL3500DB - Trilogy High Security Electronic Digital Mortise Locks with Deadbolt DL3500DB

Alarm Lock Trilogy DL3500DB Grade 1 Electronic Mortise Lock with Deadbolt - 300 User Codes

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Model: DL3500DBR US26D
$2,425.21
$998.80
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$2,425.21
$998.80
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Alarm Lock Trilogy DL3500DB Grade 1 Electronic Mortise Lock with Deadbolt - 300 User Codes

Professional High Security Digital Access Control with Advanced Programming

Grade 1 mortise lock in Alarm Lock's Trilogy T3 family, offering PIN-based access, audit trail logging, and time-based scheduling in a standalone, non-networked format with classroom or deadbolt option. The Alarm Lock Trilogy DL3500DB delivers Grade 1 commercial security with electronic mortise lock functionality and integrated deadbolt protection. This battery-operated system supports 300 user codes with master, manager, supervisor and basic user levels, featuring a 12 metal button keypad for reliable access control. Compatible with door thickness range of 1-5/8" to 1-7/8" and 2-3/4" backset, the weatherproof construction operates reliably in temperatures from -31°F to +151°F for demanding commercial environments.

Professional Features & Benefits

  • Grade 1 Security Rating: Meets the highest commercial security standards for heavy-duty applications and maximum durability in high-traffic environments.
  • 300 User Code Capacity: Accommodates multiple access levels including master, manager, supervisor and basic users for comprehensive access management.
  • Extended Battery Life: 5AA battery-pak operation delivers 75,000 cycle battery life with low-battery alert for reliable long-term performance.
  • Comprehensive Audit Trail: 40,000 event audit trail provides detailed time/date-stamped logging of all electronic activity for security monitoring and compliance.
  • Advanced Scheduling: Real time clock with 500 scheduled events enables automated lock/unlock scheduling and holiday programming for operational efficiency.
  • Weatherproof Construction: Operates reliably in temperatures from -31°F to +151°F (-35°C to +66°C) for indoor and outdoor applications.
  • Flexible Programming: PC programming capability supports fingertip or Windows PC programming with data transfer via AL-PCI2 or AL-DTMIII for flexible configuration.
  • Professional Keypad: 12 metal button electronic keypad provides durable input interface for commercial applications.

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: Classroom function: stainless steel latchbolt with 3/4" projection & deadlocking latch. 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 door preparation meets manufacturer specifications for mortise lock installation including door thickness range of 1-5/8" to 1-7/8" and 2-3/4" backset requirements.
  2. Use manufacturer-provided templates to accurately mark mortise pocket and mounting hole locations on door and frame.
  3. Prepare mortise pocket in door and route frame for strike plate according to manufacturer specifications for T-Standard and ASA door strikes.
  4. Install mortise lock body in door pocket and secure mounting hardware per manufacturer torque specifications.
  5. Install 5AA battery-pak and configure initial programming including master codes and user access levels as required.
  6. Test lock operation including keypad entry, deadbolt function, and audit trail logging to verify proper installation and programming.
  7. Complete final inspection and document programming settings. Refer to manufacturer documentation for complete installation details and AL-PCI2 or AL-DTMIII programming instructions.

Professional Applications

  • Commercial Office Buildings
  • Healthcare Facilities
  • Educational Institutions
  • Government Buildings
  • Retail Establishments
  • Multi-Tenant Properties
  • Industrial Facilities

Why Choose Alarm Lock Quality?

Alarm Lock Trilogy electronic locks deliver proven reliability with Grade 1 commercial rating and weatherproof construction rated for temperatures from -31°F to +151°F. The 75,000 cycle battery life and comprehensive 40,000 event audit trail capability provide professional-grade security management for demanding commercial applications where dependable access control is essential.

Manufacturer Resources

Product Specs

Series:
DL3500 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
Electronic:
Yes
Battery Operated:
Yes
Batteries:
5AA battery-pak operated, 75,000 cycles
Audit Trail:
Yes
User Codes:
300
Weather Proof:
Yes
Product Attribute:
Electronic Locks
Product Model:
DL3500
Product Function:
Deadbolt
Door Thickness Range:
1-5/8" to 1-7/8"
Door Strike:
T-Standard and ASA
Product Category:
Electronic Locks
Backset (Distance):
2-3/4"
Department:
Door Hardware

Alarm Lock DL3500DBR US26D – Frequently Asked Questions

1) What door applications work with the DL3500DB Trilogy mortise lock?
This mortise lock fits standard 1-3/4" thick doors with mortise prep. Designed for interior and exterior commercial doors. Verify door weight capacity and frame construction before installation.
2) How do I determine the correct handing for this mortise lock?
Stand on the pull side of the door. If hinges are on your right, it's right hand. If hinges are on your left, it's left hand. Most mortise locks can field-reverse during installation.
3) What security grade does the DL3500DB meet?
Check the product specifications for ANSI/BHMA grade rating. Alarm Lock Trilogy series typically meets commercial security standards for access control applications.
4) How many user codes can this electronic lock store?
Code capacity varies by model. Most Trilogy locks support multiple user codes plus master codes. Consult the programming manual for exact user limits and code management features.
5) What power source does the DL3500DB require?
Most Trilogy mortise locks use battery power or hardwired options. Battery life depends on usage frequency. Check specifications for exact power requirements and backup options.
6) Can this lock integrate with access control systems?
Many Alarm Lock models offer integration capabilities. Check for available communication protocols and wiring requirements. Verify compatibility with your existing access control platform.
7) What mortise case dimensions does this lock require?
Standard mortise prep typically measures 4-1/2" x 1" x 2-1/4" deep. Use the manufacturer's template for exact cutout dimensions and drilling specifications.
8) Are strike plates and mounting hardware included?
Most mortise lock sets include strike plates and basic mounting hardware. Check the contents list for included components. Additional trim or specialized strikes may be separate.
9) How do I maintain the electronic components?
Keep keypad clean and dry. Replace batteries as needed. Test operation regularly. Avoid harsh chemicals on electronic surfaces. Follow manufacturer maintenance schedule for optimal performance.
10) What other Alarm Lock models are similar to the DL3500DB?
The Trilogy series offers various mortise and cylindrical options. Models differ in features like audit trails, wireless capability, and trim styles. Browse our Alarm Lock collection for alternatives.
11) Can this lock work in outdoor weather conditions?
Weather resistance depends on the specific model rating. Most commercial electronic locks handle normal weather exposure. Verify IP rating for harsh environments or coastal installations.
12) What happens if the electronic components fail?
Most Trilogy locks include mechanical key override for emergency access. Battery backup features help prevent lockouts. Keep spare batteries and override keys accessible for maintenance staff.
How fast can I get the Alarm Lock DL3500DBR US26D delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Alarm Lock DL3500DBR US26D come with a warranty?
Absolutely. The Alarm Lock DL3500DBR 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 DL3500DBR US26D?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Alarm Lock DL3500DBR US26D from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
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