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CISA 5C130 70 mm Backset Latch-and-bolt mortise lock (15C130700)

Latch-and-bolt mortise lock: Backset: 70 mm; Faceplate width: 22 mm; Case and cover: Galvanized; Faceplate: Removable brass; Bolt: Brass; Faceplate ends: Rounded ends; Centre distance: 85 mm; Bolt/latch configuration: Latch and bolt; Latch: Flat brass latch, non-handed; Bolt throws: 2.

CISA 15C130700 — Official series illustration, not a photo of this exact size variant; consult model specifications.
Official series illustration, not a photo of this exact size variant; consult model specifications.Image source
15C130700 backset 70 mm measurement-reference diagram; not a product view
Drawn by this site from the explicit dimensions of the corresponding model; the diagram is not to scale and is not a drilling template.

Lock and fitting dimensions

Dimensions from model documentation
SpecificationsDimensions from model documentation
Backset70 mm
Faceplate width22 mm
Centre distance85 mm

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

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Specifications

Backset
70 mm
Faceplate width
22 mm
Case and cover
Galvanized
Faceplate
Removable brass
Bolt
Brass
Faceplate ends
Rounded ends
Centre distance
85 mm
Bolt/latch configuration
Latch and bolt
Latch
Flat brass latch, non-handed
Bolt throws
2

Construction and operation of this version

15C130700 is an explicit ordering row in the 5C130 series with backset 70 mm. The rounded faceplate ends must match the ends of the door-edge recess. The 85 mm centre distance connects the handle and cylinder operating positions and cannot be replaced by the backset.

How to check installation dimensions

This model's backset is 70 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

  • The 35 mm backset version does not support the through-bolt handle-plate configuration described in the catalogue; only 29 mm spacing is listed for the protective escutcheon; other backsets separately list 29/38 mm.
  • Cylinder purchased separately.
  • 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

CISA 2026 English catalogue, PDF page 342 / printed page 338

Manufacturer documents are provided in their original language.

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Manufacturer documents are provided in their original language.