TOPTEK EN72LL is a passage mortise lock for doors that need latching without key-controlled access. The lever handle retracts the latch; there is no deadbolt locking function. For door factories supplying shared internal rooms or circulation doors, this allows a lever-operated package without purchasing a cylinder for the passage function.
The first procurement question is whether the opening must ever restrict entry. If it does, specify a suitable locking function from the TOPTEK European mortise-lock range. If unrestricted passage is the requirement, EN72LL offers three backset models and defined furniture interfaces.
Choose the passage model by backset
| Complete model | Backset | Operating function |
|---|---|---|
| EN5572LL | 55 mm | Handle-operated passage latch |
| EN6072LL | 60 mm | Handle-operated passage latch |
| EN6572LL | 65 mm | Handle-operated passage latch |
Backset positions the follower relative to the door edge. Match it to the proposed door preparation and lever location. The EN72LL product configuration should be ordered by its complete model, rather than a generic description such as “European latch case.”
Match the follower, furniture and forend
EN72LL offers 8 × 8 mm and 9 × 9 mm square follower options. Choose the follower with the intended spindle and lever set. Recording that choice before the sample order helps prevent a door factory receiving a latch case and handles with different spindle requirements.
The forend is 235 mm high and 3 mm thick, with 20, 22, 23 or 24 mm width options and round or square ends. Width and end shape affect the edge preparation. Select them from the manufacturing drawing for the door, and include the strike plate in the package.
The standard specification uses SS304 for the forend, integrally precision-cast latch, follower and strike. The case is 1.5 mm SECC. SS316 is an option for the specified stainless components; it does not describe the entire case assembly. Keeping the component material selection on the quotation makes sample and repeat-order comparisons clearer.
Although the family documentation records a 72 mm centre distance, the passage function does not require a cylinder to operate. Use the passage-specific preparation drawing and furniture selection when machining the door; a cylinder-shaped opening visible in a platform case is not an instruction to add a keyed function.
Connect the chosen model to its documentation
EN5572LL, EN6072LL and EN6572LL are named as passage-latch models in TOPTEK’s Intertek Certificate of Constancy of Performance 2649-CPR-26002201, issued on 4 June 2026. The listed function is handle operation of the latchbolt. Buyers can request the complete document through TOPTEK’s certification resources.
For fire or smoke-control doors, coordinate the named model, installation and intended doorset with the complete supporting documents. A passage function does not by itself specify an emergency-exit hardware arrangement or approve every door construction.
Keep locking doors separate in a mixed order
A shared meeting space may need free passage, while an adjacent store requires key-controlled access. Put those needs on different order lines even if the furniture finishes match. EN72LL addresses the first requirement. A sash-lock configuration such as EN72SL adds a cylinder-operated deadbolt; it is a different function to specify and sample.
If the project is still deciding between latching and deliberate deadbolt locking, the passage-latch versus deadbolt comparison explains that earlier choice. Once passage is selected, concentrate the purchase specification on EN72LL’s backset, follower, forend and matching furniture.
Request an EN72LL passage package
Send TOPTEK the door drawing for a passage-lock quotation. State the complete model, follower size, forend width and ends, material option, lever set, door thickness, finish and quantities. Ask for a quotation identifying the lockcase, strike, spindle, fixings and furniture included. A representative assembled sample can then establish the latching and handle-return behaviour for the order.
Frequently Asked Questions
Does EN72LL need a cylinder?
No cylinder is required for its passage function. The handle operates the latchbolt, and the lock has no deadbolt locking function.
Which EN72LL model has a 60 mm backset?
EN6072LL is the 60 mm backset passage model. EN5572LL and EN6572LL provide 55 mm and 65 mm alternatives.
Can the follower size be chosen separately from the handles?
The 8 × 8 mm or 9 × 9 mm follower option should be selected with the spindle and lever set. Include the matching components in the sample and purchase specification.