ISEO Portoncino Left-handed vertical rim lock | Backset 45 mm (495028450)

Lock and fitting dimensions

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

Specifications

Construction

Left-handed vertical rim lock

Backset

45 mm

Handing

Left-handed

Installation orientation

Vertical installation

Bolt throws

2

Bolt/latch configuration

Separate latch and 8 mm Handle spindle hole

Outside cylinder

Fixed type Ø26×50 mm

Cylinder-to-handle centre distance

70 mm

Functions and interfaces of this model

This vertical model is Left-handed; its operating configuration is Separate latch and 8 mm Handle spindle hole. Its hole layout differs from a horizontal rim lock; backset 45 mm alone does not establish interchangeability.

Using backset for compatibility checks

The catalogue records this model's backset as 45 mm. Backset is measured from the specified faceplate or door-edge reference to the operating centre. It describes a different direction from centre distance, lock-body width and door thickness; retain the original drawing's reference when measuring.

The selection checklist should also retain: backset 45 mm; Handing Left-handed; installation orientation Vertical installation; Bolt throws 2; Bolt/latch configuration Separate latch and 8 mm Handle spindle hole; Outside cylinder Fixed type Ø26×50 mm; Cylinder-to-handle centre distance 70 mm. Even for models with the same backset, compare handing, latch/bolt configuration and drive interfaces.

Checks before replacement and installation

Give the supplier the full model number 495028450, photographs of the original lock body, door handing and measured dimensions. The measurement reference in the diagram only explains what the dimension means; it cannot be used directly as a drilling template.

For electric configurations, also check power-supply and control requirements; for mechanical versions, check the strike plate, cylinder connection and range of movement.

Limitations

• This page follows the specific model row in Catalogue .42; it does not replace site installation drawings or the manufacturer's confirmation of current supply.
• The measurement diagram explains only this page's dimensional reference; it does not show the product appearance, drilling positions or complete installation dimensions.

Sources

Manufacturer documents are provided in their original language.

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