CISA 5C170 50 mm Backset Bathroom mortise lock (15C170500)

Lock and fitting dimensions

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

Specifications

Backset

50 mm

Faceplate width

22 mm

Case and cover

Galvanized

Faceplate

Removable brass

Bolt

Brass

Faceplate ends

Rounded ends

Application

Bathroom door

Bolt/latch configuration

Latch and bolt

Centre distance

85 mm

Bolt throws

1

Square spindle

8 mm

Construction and operation of this version

15C170500 is an explicit ordering row in the 5C170 series with backset 50 mm. The bathroom lock with a round-ended faceplate has a single-throw bolt, unlike the two-throw cylinder-operated version in the same series. Check the inside and outside privacy controls and centre distance; do not mix versions solely because their backsets match.

How to check installation dimensions

This model's backset is 50 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 spindle dimension is specified only in section 5C170; it has not been automatically applied to 5C150.
• 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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