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CISA 49728 25 mm Backset Three-point geared mortise lock with flat faceplate (14972825000RC)

CISA 14972825000RC is a 49728 series Three-point geared mortise lock with flat faceplate, fixed backset 25 mm. Flat plate faceplate cross-section 24 × 3 mm, centre distance 92 mm, with 3 lateral bolts; Catalogue faceplate height 2300 mm.

CISA 14972825000RC Fixed backset 25 mm Original measurement guide
Our original diagram: backset 25 mm is the horizontal distance from the door-edge faceplate reference to the cylinder centre axis. It is not overall case depth or handle centre distance; not to scale; not a product outline or installation drawing.

Lock and fitting dimensions

Dimensions from model documentation
SpecificationsDimensions from model documentation
Backset25 mm
Case thickness15.5 mm
Catalogue faceplate height2300 mm
Handle-to-cylinder centre distance92 mm
Spindle specification8 mm

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

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Specifications

Product series
49728
Backset
25 mm
Key system
Euro-profile cylinder
Body construction
Three-point geared mortise lock with flat faceplate
Case thickness
15.5 mm
Faceplate cross-section
24 × 3 mm
Faceplate shape
Flat plate
Faceplate material
Stainless steel
Catalogue faceplate height
2300 mm
Upper-end adjustment
350 mm
Lower-end adjustment
150 mm
Handle-to-cylinder centre distance
92 mm
Number of lateral bolts
3 units
Latch adjustment range
11–17 mm
Spindle specification
8 mm
Bolt throw stages (original term Throws)
2

Construction and dimensional compatibility

The fixed backset of 25 mm is measured horizontally from the door-edge faceplate to the cylinder centre axis; it is not the overall case depth. Flat plate faceplate cross-section 24 × 3 mm, centre distance 92 mm, with 3 lateral bolts; Catalogue faceplate height 2300 mm.

Faceplate adjustment: upper end 350 mm, lower end 150 mm; these faceplate adjustments do not change the fixed 25 mm backset. Check the flat cross-section of the door-edge recess, upper and lower auxiliary-lock positions and centre distance together.

Also check the installation space inside the door leaf, strike position and plates on both sides. An identical fixed backset does not make different constructions directly interchangeable.

Limitations

  • The parameter diagram explains only the measurement reference; it is not a product outline and must not be used for drilling or installation.
  • Strikes, extension rods and other accessories offered on request in the catalogue are not standard equipment.
  • Statements of lock-series suitability or certification are not promises of current compliance for any complete door configuration.

Sources

CISA 2026 English catalogue, PDF page 227 / printed page 223

Manufacturer documents are provided in their original language.

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Manufacturer documents are provided in their original language.