The dormakaba Simplex L1031 is a heavy-duty mechanical pushbutton lock offering combination-controlled entry, unrestricted interior egress and an internal passage feature. Passage mode allows the exterior lever to operate without entering the combination when unlocked access is desired. The L1031 requires no batteries, wiring, software or keys and features ADA-compliant levers, weather-resistant construction and a 3-hour UL/ULC fire-rated cylindrical latch.
Full Product Description
The dormakaba Simplex L1031 Mechanical Pushbutton Lock provides reliable, battery-free combination access with the added convenience of an interior-controlled passage function. Authorized users normally enter by pressing the programmed combination and depressing the exterior lever. The interior lever always permits unrestricted free egress.
The L1031 is the combination-entry and passage model in the Simplex L1000 Series. When passage mode is activated from the interior, the exterior lever remains operable without requiring the access combination. This allows a normally secured door to remain unlocked during business hours, scheduled meetings, deliveries or other periods when unrestricted entry is desired.
When passage mode is discontinued, the exterior lever returns to combination-controlled operation. The passage feature is operated from the interior using the control furnished with passage-function models, helping prevent unauthorized users on the exterior from changing the door’s operating mode.
The L1031 does not include a mechanical key override. Users enter from the exterior either by entering the combination or, when passage mode is active, by operating the exterior lever without a code.
Because the Simplex L1031 is completely mechanical, it requires no batteries, electrical wiring, power supply, access cards, software, computer or network connection. This reduces maintenance and makes it a dependable standalone access-control solution for commercial openings.
The lock stores one shared access combination. Combinations may use up to five buttons pressed individually or simultaneously, providing thousands of possible combinations. The code can be changed from the interior side without removing the complete lock from the door.
Heavy-duty construction includes a cast exterior housing, unified trim plate, vandal-resistant solid-metal pushbuttons and fixed ADA-compliant lever handles. The L1031 installs on properly prepared wood or hollow metal doors using an ANSI/ASA 161 cylindrical lock preparation with additional through holes.
The cylindrical latch carries a 3-hour UL/ULC fire rating for “A”-labeled doors, and the lock is weather resistant for suitable exterior applications. The L1031 is factory handed and must be ordered for the correct handing because it is not field reversible. Manufacturer specifications
Key Features
- Combination-controlled exterior entry
- Interior-controlled passage mode
- Exterior lever operates without a code while passage is active
- Completely mechanical operation
- No batteries, electricity or wiring required
- No software, computer or network connection required
- No keys, cards, fobs or mobile credentials required
- Interior lever provides unrestricted free egress
- One shared access combination
- Combination can be changed without removing the lock
- Heavy-duty cylindrical lock construction
- Vandal-resistant solid-metal pushbuttons
- Fixed ADA-compliant lever handles
- Weather-resistant construction
- Installs on wood or hollow metal doors
- 3-hour UL/ULC fire-rated latch for “A”-labeled doors
- Available for left-hand and right-hand doors
- 3-year manufacturer’s warranty
L1031 Function
Combination Entry with Passage Mode
- Normal exterior operation: Enter the correct combination and depress the lever.
- Passage operation: Depress the exterior lever without entering a combination.
- Interior operation: Inside lever always provides free egress.
- Passage control: Activated and deactivated from the interior.
- Key override: No
- Cylinder core: Not applicable
- Privacy or lockout mode: No
- Number of codes: One shared combination
Passage mode changes the exterior lever from code-controlled entry to unrestricted entry. It does not change or erase the programmed combination.
How Passage Mode Works
The passage function allows authorized personnel to temporarily place the lock in an unlocked-access mode.
Passage Mode Activated
- No combination is required.
- The exterior lever retracts the latch normally.
- The door can be used freely from either side.
Passage Mode Deactivated
- The exterior lever remains secured.
- Users must enter the correct combination before operating the exterior lever.
- The interior lever continues to provide free egress.
This function is useful for doors that require controlled entry after hours but should remain accessible during normal operating periods.
Technical Specifications
| Specification | Details |
|---|---|
| Manufacturer | dormakaba |
| Brand | Simplex |
| Model | L1031 |
| Series | L1000 |
| Lock type | Mechanical pushbutton cylindrical lever lock |
| Function | Combination entry with passage |
| Interior operation | Free egress |
| Number of codes | One |
| Power requirement | None |
| Key override | No |
| Cylinder core | Not applicable |
| Passage feature | Yes |
| Privacy function | No |
| Door type | Wood or metal doors |
| Door preparation | ANSI/ASA 161 with additional through holes |
| Door thickness | 1-3/8" to 2-1/4" |
| Standard backset | 2-3/4" |
| Optional backset | 2-3/8" |
| Standard latch throw | 1/2" |
| Optional latch throw | 3/4" |
| Minimum recommended stile | 5" |
| Handing | Factory handed; not field reversible |
| Accessibility | Fixed ADA-compliant levers |
| Fire rating | 3-hour UL/ULC for “A”-labeled doors |
| Environmental suitability | Weather resistant |
| Approximate weight | 8.25 lb. |
| Warranty | 3 years |
Locking Device Options
- 1: 1/2" latch throw, floating faceplate, 2-3/4" backset
- 2: 1/2" latch throw, floating faceplate, 2-3/8" backset
- 5: 3/4" latch throw, beveled faceplate, 2-3/4" backset
- 6: 3/4" latch throw, beveled faceplate, 2-3/4" backset
Verify the required backset, latch throw and faceplate configuration before ordering.
Available Finishes
- 03 / 605: Bright Brass
- 05 / 609: Antique Brass
- 026 / 625: Bright Chrome
- 26D / 626: Satin Chrome
Handing Information
The Simplex L1031 is factory handed and cannot be reversed in the field.
- LL: Left Hand or Left Hand Reverse
- LR: Right Hand or Right Hand Reverse
Confirm the handing from the exterior or keypad side of the door before ordering.
Common Applications
The Simplex L1031 is ideal for:
- Commercial offices
- Main employee entrances
- Conference and meeting rooms
- Schools and universities
- Healthcare facilities
- Religious institutions
- Community centers
- Warehouses
- Industrial facilities
- Multifamily common areas
- Maintenance departments
- Deliveries and receiving areas
- Rooms requiring controlled after-hours access
Why Choose the L1031?
The Simplex L1031 is designed for openings that need combination-controlled access during certain hours and unrestricted entry at other times.
Choose the L1031 when you need:
- Battery-free combination entry
- The ability to temporarily unlock the exterior lever
- Passage control operated from inside the secured area
- No mechanical key override
- Free interior egress
- Commercial cylindrical-lock construction
- No electronic access-control infrastructure
Important Ordering Information
Before ordering, confirm:
- Door handing
- Door thickness
- Required finish
- Backset
- Latch throw and faceplate
- Strike requirements
- Door and frame preparation
- Fire-rating requirements
- Whether passage mode is permitted for the opening
The L1031 provides passage mode but does not include a mechanical key override. If both functions are required, consider the Simplex L1041.
Frequently Asked Questions
Does the Simplex L1031 require batteries?
No. The L1031 is a completely mechanical lock requiring no batteries, wiring or electricity.
What is passage mode?
Passage mode allows the exterior lever to retract the latch without entering the combination. It is useful when a door should remain freely accessible during selected periods.
How is passage mode controlled?
Passage mode is activated and deactivated from the interior using the control included with passage-function models.
Does passage mode erase the combination?
No. Activating passage mode does not change or erase the programmed combination.
Does the L1031 have a key override?
No. The L1031 provides combination entry and passage mode without mechanical key override.
Which model has passage and key override?
Consider the Simplex L1041 when both mechanical key override and passage functionality are required.
How many access codes can be programmed?
The L1031 stores one shared access combination. It does not provide individual codes for different users.
Can the combination be changed?
Yes. The combination can be changed from the interior side without removing the complete lock from the door.
Does the inside lever require a combination?
No. The interior lever always permits unrestricted free egress.
Is the L1031 suitable for exterior doors?
The L1000 Series is weather resistant and suitable for appropriate exterior applications when properly installed.
Can the lock be reversed in the field?
No. The L1031 is factory handed and must be ordered for the correct door handing.
Is the L1031 fire rated?
Its cylindrical latch is UL/ULC rated for up to three hours when properly installed as part of a compatible “A”-labeled fire-door assembly.
TITLE TAG: Simplex L1031 Pushbutton Lock with Passage | Dormakaba