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Satin chrome mortise pushbutton lever lock, left hand

Simplex

Simplex 8146B-LH-26D Satin Chrome Left Hand Mortise Pushbutton Door Lock

SKU CH-J3J0-CJW17 MPN 8146B-LH-26D

Heavy-duty mechanical pushbutton mortise lever lock with key override for SFIC cores, satin chrome finish, left-hand operation, 70 mm backset, fits doors 44 mm to 57 mm thick.

  • FinishSatin Chrome
  • Selling UnitBox
  • Backset2-3/4"
  • KeyingKeyed Different
  • Mechanical pushbutton operation removes battery costs
  • Satin chrome finish resists wear in high-traffic areas
  • Left-hand lever suits specific door swing direction
  • Accepts SFIC Best and equivalent 6 or 7 pin cores
  • Three-hour UL fire rating on A-labeled doors

Product Identity

The Simplex 8146B-LH-26D is a heavy-duty mechanical pushbutton mortise lever lock finished in satin chrome. It is built for left-hand doors in commercial or institutional settings where keyed entry and code-based access are required. The lock accepts SFIC Best and equivalent six or seven pin cores, which are sold separately. It suits facilities that prefer a battery-free solution with a single programmable access code.

Practical Limits

The lock fits wood or metal doors prepared with a standard 86 mortise cut-out and a thickness between 44 mm and 57 mm. Its backset is fixed at 70 mm and the two-piece anti-friction latch projects 19 mm. Operation is purely mechanical, so there is no electronic audit trail, no remote code change and no integration with access-control software. The single code must be reprogrammed at the keypad on the door.

Installation Notes

The unified trim plate and cast front housing mount into the standard mortise pocket, and the fixed ADA-compliant lever is handed for left-hand doors only. The key override cylinder is not included; an SFIC core must be sourced and installed before the lock will accept a key. Programming the access code is done through the keypad without removing the lock, but the door must be within the supported thickness range for the latch to engage correctly.

Highlights

  • Mechanical pushbutton operation removes battery costs
  • Satin chrome finish resists wear in high-traffic areas
  • Left-hand lever suits specific door swing direction
  • Accepts SFIC Best and equivalent 6 or 7 pin cores
  • Three-hour UL fire rating on A-labeled doors

Specifications

BrandSimplex
Model8146B-LH-26D
FinishSatin Chrome
Selling UnitBox
Backset2-3/4"
KeyingKeyed Different

Questions about this item

Should I choose a left-hand or right-hand version for my door?

This model is the left-hand version, designed for doors where the hinges are on the left side when viewed from the outside; select the matching right-hand model if your hinges are on the right.

What does the 2-3/4" backset mean when I install this lock?

The 70 mm backset measures the distance from the door edge to the centre of the lever spindle; your door must be pre-drilled to this specification for the mortise body to fit correctly.

Which core types work with the SFIC preparation?

The lock accepts SFIC Best and equivalent 6-pin or 7-pin cores; the core is sold separately and must be installed before the lock operates with a key.

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