Dormakaba LR8146M-03-41 Pushbutton Mechanical Lock

Kaba Access Dormakaba LR8146M-03-41 Mechanical Pushbutton Lock combines robust security with user-friendly functionality. This mortise combination lever lock features a key override option, making it suitable for both passage and lockout scenarios. Designed with convenience in mind, it eliminates the need for keys or cards, and combinations can be easily changed in seconds without removing the lock from the door. Constructed with a durable cast front housing and unified trim plate, this lock offers a vandal-resistant numeric keypad with solid metal pushbuttons. Its fixed ADA-compliant levers ensure accessibility, while the weather-resistant design guarantees durability in various conditions. The lock accommodates a backset of 2¾" and includes a two-piece anti-friction latch with an optional 1" deadbolt. Installation is straightforward on wood or metal doors with standard mortise preparation, fitting door thicknesses from 1¾" to 2¼". The LR8146M is compatible with interchangeable cores from leading brands like Medeco, Yale, and ASSA, though cores are sold separately. Backed by a 3-year warranty and a 3-hour UL/ULC fire rating for "A" labeled doors, this lock is an ideal choice for commercial applications where security and accessibility are paramount.

Mechanical Pushbutton Lock

Mortise Combination Lever Lock, Key Override, Passage, Lockout, Medeco/Yale/ASSA/Abloy LFIC Prep, Less Core, Bright Brass

Simplex mechanical pushbutton locks offer a convenient way to control access between public and private areas. There are no keys or cards to manage, no computers to program, no batteries to replace, and combinations can be changed in seconds without removing the lock from the door.

Provides exterior access by combination, while allowing free egress.

• Construction: Cast front housing; unified trim plate; fixed ADA—compliant levers
• Numeric Keypad: Vandal resistant, solid metal pushbuttons
• Backset: 2¾" (70 mm)
• Latch: ¾" (19 mm) two-piece anti-friction latch; 1" (25 mm) optional deadbolt
• Minimum Stile Recommended: 5" (127 mm)
• Strike: 4⅞" (124 mm) L x 1¼" (32 mm) W x ¼" (6 mm) D Deadbolt/Latch mortise strike plate
• Key Override
  • Interchangeable Cores: Small format—Best and equivalents (6 or 7-pin length); core not included
  • Removable Cores: Large format—Medeco/ASSA/Yale/Abloy (5 or 6-pin length), Corbin Russwin, Schlage, and Sargent; core not included
• Door Preparation: Easily installs on wood or metal doors. Standard (86) mortise preparation
• Door Thickness: 1¾" (44 mm) to 2¼" (57 mm)
• Accessibility Standard: Americans with Disabilities Act (ADA); fixed ADA-compliant levers
• Durability: Weather resistant
• Fire Rating: 3-hour UL/ULC fire rating for "A" labeled doors
• Warranty: 3-year warranty

Resources

• Simplex 8100 Series Cut Sheet
• Simplex Product Catalog