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Satin-chrome mortise lever lock with mechanical pushbutton keypad, left-hand orientation

Simplex

Simplex 8148M-LH-26D Satin Chrome Mechanical Pushbutton Mortise Left Hand Lever Door Lock

SKU CH-ZWJK-T8YEM MPN 8148M-LH-26D

Mechanical pushbutton mortise lever lock with key override for LFIC cores, left-hand operation, satin chrome finish, 70 mm backset, fits doors 44 to 57 mm thick, three-hour fire rating

  • FinishSatin Chrome
  • Selling UnitBox
  • Backset2-3/4"
  • KeyingKeyed Different
  • Mechanical pushbutton entry needs no batteries
  • Left-hand mortise lever fits 44–57 mm doors
  • 70 mm backset with 19 mm anti-friction latch
  • Accepts LFIC Medeco, Assa Abloy, Yale 5- or 6-pin cores
  • 3-hour UL/ULC fire rating on A-labelled doors

Product Identification

The Simplex 8148M-LH-26D is a heavy-duty mechanical pushbutton mortise lever lock finished in satin chrome. It provides keyless exterior access via a vandal-resistant keypad with solid metal pushbuttons and allows free egress from the interior. The lock operates without batteries and supports a single access code programmed at the keypad.

Handing and Core Compatibility

This unit is configured for left-hand doors measuring 44 to 57 mm thick and requires a standard 86 mortise preparation. It accepts LFIC Medeco, Assa Abloy or Yale cores in 5 or 6 pin lengths, which are sold separately. Buyers needing right-hand operation, a different backset or an integrated core should consider other models.

Decisive Specification

The lock features a 70 mm backset paired with a 19 mm two-piece anti-friction latch. This combination determines fit within the mortise pocket and alignment with the strike plate. Verify these dimensions against your door prep before ordering.

Highlights

  • Mechanical pushbutton entry needs no batteries
  • Left-hand mortise lever fits 44–57 mm doors
  • 70 mm backset with 19 mm anti-friction latch
  • Accepts LFIC Medeco, Assa Abloy, Yale 5- or 6-pin cores
  • 3-hour UL/ULC fire rating on A-labelled doors

Specifications

BrandSimplex
Model8148M-LH-26D
FinishSatin Chrome
Selling UnitBox
Backset2-3/4"
KeyingKeyed Different

Questions about this item

How long will the mechanical pushbutton mechanism last under heavy daily traffic?

The lock is built with a cast front housing, unified trim plate and fixed ADA-compliant lever for heavy-duty commercial use.

Does the lock generate any noise or heat during continuous operation?

It is a fully mechanical pushbutton mortise lock with no electronics, batteries or motor, so it produces no audible noise or heat.

Which LFIC core must I already own for the key override to function?

The lock accepts Medeco, Assa Abloy or Yale large-format interchangeable cores in 5- or 6-pin lengths; the core is sold separately.

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