ISEO Infilare 200N Roller-and-bolt mortise lock | Backset 45 mm (280N451)

Lock and fitting dimensions

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

Specifications

Construction

Roller-and-bolt mortise lock

Backset

45 mm

Bolt/latch configuration

Adjustable roller and bolt

Bolt action

Two-stage travel, 10 mm per stage

Faceplate ends

Square ends

Faceplate material

Brass-plated steel

Functions and interfaces of this model

An adjustable roller differs from an ordinary handle-operated latch; engagement on closing depends on roller and strike-plate positions. Confirm the door's operating method when purchasing; Cylinder and strike plate ordered separately.

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; Bolt/latch configuration Adjustable roller and bolt; Bolt action Two-stage travel, 10 mm per stage; Faceplate ends Square ends; Faceplate material Brass-plated steel. 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 280N451, 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.
• Confirm whether the cylinder, strike plate and accessories are included from the corresponding catalogue section and ordering configuration.

Sources

Manufacturer documents are provided in their original language.

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