CISA 5C120 35 mm Backset Roller-and-bolt mortise lock (15C120350)

Lock and fitting dimensions

Check the backset, centre distance, faceplate and mounting points against the specific model drawing.

Specifications

Backset

35 mm

Faceplate width

22 mm

Case and cover

Galvanized

Faceplate

Removable brass

Bolt

Brass

Faceplate ends

Square ends

Bolt/latch configuration

Roller and bolt

Roller

Brass, adjustable over 2–13 mm

Bolt throws

2

Construction and operation of this version

15C120350 is an explicit ordering row in the 5C120 series with backset 35 mm. The roller lock with a square-ended faceplate engages the frame with a brass roller adjustable over 2–13 mm. Roller adjustment affects the contact position; it does not change the backset to the cylinder axis; its operation must not be understood as that of a handle-operated latch.

How to check installation dimensions

This model's backset is 35 mm, the distance from the specified door-edge faceplate reference to the operating axis. Faceplate width, centre distance and external lock-body depth describe different directions and must not substitute for one another.

For replacement, record the old lock's full number, faceplate-end shape, inside and outside operating components and strike positions; when changing handing or linked rods, confirm interfaces according to the product instructions.

Limitations

• Cylinder purchased separately; this model row does not list handle centre distance; the 85 mm centre distance of the latch version is not applied to it.
• Series certification and catalogue descriptions of fire or escape applications do not mean this model meets current requirements when installed in any door assembly.
• Check accessories against the corresponding model and installation instructions; Cylinders, rods and escutcheons listed as available on request are not standard equipment.

Sources

Manufacturer documents are provided in their original language.

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