Name: CISA AP4 S 33/33 double cylinder with clutch (10P3S110012)
Brand: CISA

CISA 10P3S110012 — 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

10P3S110012 dimension diagram: side B 32.5 mm, side A 32.5 mm, overall body length 65 mm — Our dimension diagram follows the corresponding catalogue row; it is not a product view or machining template; the projecting knob shaft is excluded from body dimension L.

Cylinder dimensions

Dimensions from model documentation
Specifications	Dimensions from model documentation
Dimension A	32.5 mm
Dimension B	32.5 mm
Overall length L	65 mm

Measure both sides from the fixing screw. Check the cylinder profile, cam and version.

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Specifications

Key system: AP4 S
Construction: Double cylinder with clutch
Nominal size: 33/33
Dimension A: 32.5 mm
Dimension B: 32.5 mm
Overall length L: 65 mm
Coding construction: Ordering-table pin-position count: 12
Body construction: Brass body with a dual-material anti-snap reinforcing core
Key type: Reversible nickel-silver flat key with a moving element
Operating mechanism: DIN cam with clutch
Catalogue key part number: 1.00810.00.0

Operation and dimensions of this version

10P3S110012 is a double cylinder with clutch: A=32.5 mm, B=32.5 mm, with the two sections totaling L=65 mm. The two sections are equal; still check whether the escutcheons leave the actual length requirements on both door sides symmetrical.

Key system and installation checks

AP4 S key part number is 1.00810.00.0; it has a long neck to accommodate protective escutcheons. The series includes carbonitrided-steel pins and differently shaped driving pins; Security Card is used for protected key duplication; it does not establish compatibility between different systems.

When selecting, first record nominal size 33/33 for 10P3S110012, then verify the actual 32.5+32.5=65 mm against the drawing. Nominal size is an ordering identifier; adding its two integers does not give the actual overall length.

Limitations

Dimensions are divided at the central reference in the catalogue drawing; a and B do not automatically designate the outside and inside of the door. Installation also requires checking the lock-body cam interface, door thickness and escutcheon thickness.
Catalogue model numbers and dimensions do not establish current stock availability or certification of the complete door; Before purchase, check the actual supplied product's identification plate and the manufacturer's installation documentation.

Sources

CISA 2026 English catalogue, PDF page 73 / printed page 69

Manufacturer documents are provided in their original language.

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