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Simplex

Simplex L1021B-RH-3 door lock Bright Brass right hand

SKU CH-H92E-V5GXC MPN L1021B-RH-3

Mechanical push-button lever lock with adjustable backset, 3-hour fire rating and SFIC core compatibility for 6 or 7-pin cylinders

  • FinishBright Brass
  • Selling UnitBox
  • Backset2-3/4" - 2-3/8"
  • KeyingKeyed Different
  • Mechanical keyless entry removes battery costs
  • Single code programmed at the keypad without removal
  • Adjustable backset 60 mm or 70 mm
  • Fits doors 35 mm to 57 mm thick
  • 3-hour UL/ULC fire rating on A-label doors

Right-Hand Mechanical Combination Lock

The Simplex L1021B-RH-3 is a heavy-duty cylindrical lever lock finished in bright brass. It provides keyless exterior access via a single pushbutton combination code while allowing free egress from the interior. The mechanical design removes the need for battery changes and suits wood or metal doors between 35 mm and 57 mm thick.

Replaces Keyed-Only Cylindrical Locks

This unit upgrades a standard keyed entry where code-based access is preferred and wiring for electronics is impractical. The jump is worth it when you need to issue a shared code instead of managing physical keys and want a 3-hour UL/ULC fire rating on A-label doors. It is not for buyers who require multiple user codes, audit trails or remote management.

Fits Adjustable Backset Prep

Installation uses the adjustable backset covering 60 mm and 70 mm centres with a 13 mm by 19 mm latch. The single code is programmed at the keypad without removing the lock from the door. What usually goes wrong is ordering without a compatible 6 or 7 pin SFIC core, which is sold separately, or fitting the right-hand lever on a left-hand door swing.

Highlights

  • Mechanical keyless entry removes battery costs
  • Single code programmed at the keypad without removal
  • Adjustable backset 60 mm or 70 mm
  • Fits doors 35 mm to 57 mm thick
  • 3-hour UL/ULC fire rating on A-label doors

Specifications

BrandSimplex
ModelL1021B-RH-3
FinishBright Brass
Selling UnitBox
Backset2-3/4" - 2-3/8"
KeyingKeyed Different

Questions about this item

What door thickness range does the L1021B-RH-3 fit?

The lock fits wood or metal doors from 35 mm to 57 mm thick.

How is the single access code programmed on this mechanical pushbutton lock?

The code is entered via the keypad while the lock remains mounted on the door.

Which core type must be purchased separately for the SFIC cylinder?

A 6 or 7 pin Small Format Interchangeable Core for Best and equivalents.

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