Simplex L1011LH-3 Bright Brass Mechanical Lever Pushbutton Combination Left Hand Door Lock

Mechanical Combination Lever Lock

The Simplex L1011LH-3 is a heavy-duty cylindrical lock that grants exterior entry through a single mechanical pushbutton code while allowing free egress from the inside. It suits commercial or residential doors where key management is impractical and a battery-free solution is preferred. The bright brass US3 finish matches traditional hardware aesthetics.

Sustained Operation Without Power

Because the mechanism is entirely mechanical, the lock maintains consistent operation during extended use without any risk of battery depletion or electronic failure. The cylindrical latch carries a three-hour UL/ULC fire rating on A-label doors, and the cast front housing with unified trim plate is built to withstand high-traffic environments day after day.

Installation Considerations

The adjustable backset fits both 60 mm and 70 mm preparations, and the latch accommodates door thicknesses from 35 mm to 57 mm on wood or metal doors. The lock is handed for left-hand doors only, so verify the swing direction before fitting. Programming the access code is done at the keypad without removing the unit from the door.

Fixed ADA Levers and Single Code

The fixed levers meet ADA compliance for accessible operation, but they cannot be swapped for alternative handle styles. Only one access code can be stored at a time, so facilities needing multiple unique codes or audit trails will require a different system.