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CISA 49228 40 mm Backset Geared latch-and-bolt mortise lock (14922840000RC)

CISA 14922840000RC is a 49228 series Geared latch-and-bolt mortise lock, fixed backset 40 mm. A 15.5 mm-thick case with a 22 × 3 mm stainless-steel faceplate, using latch-and-bolt construction; Centre distance 92 mm, Latch adjustment 11–17 mm.

CISA 14922840000RC Fixed backset 40 mm Original measurement guide
Our original diagram: backset 40 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
Backset40 mm
Case thickness15.5 mm
Faceplate dimensions22 × 3 mm
Handle-to-cylinder centre distance92 mm

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

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Specifications

Product series
49228
Backset
40 mm
Key system
Euro-profile cylinder
Body construction
Geared latch-and-bolt mortise lock
Transmission type
Gear drive
Case thickness
15.5 mm
Faceplate dimensions
22 × 3 mm
Faceplate material
Stainless steel
Case material
Galvanized die-cast alloy
Adjustment range
11–17 mm
Adjustment component
Reversible Latch
Additional locking points
Prepared connection
Bolt throw stages (original term Throws)
2
Handle-to-cylinder centre distance
92 mm

Construction and dimensional compatibility

The fixed backset of 40 mm is measured horizontally from the door-edge faceplate to the cylinder centre axis; it is not the overall case depth. A 15.5 mm-thick case with a 22 × 3 mm stainless-steel faceplate, using latch-and-bolt construction; Centre distance 92 mm, Latch adjustment 11–17 mm.

The latch or roller adjustment range is different from the fixed backset; the roller version differs from a construction in which a handle retracts the latch. Check the cylinder and optional extension rods separately against the door construction.

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 225 / printed page 221

Manufacturer documents are provided in their original language.

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Manufacturer documents are provided in their original language.