Surface-mounted junction box NASIELSK Fast-Box 0242-04 80×80×42 mm gray

The NASIELSK Fast-Box 0242-04 surface-mounted junction box is a compact enclosure sized 80×80×42 mm in gray, intended to house electrical cable connections and wiring terminations. Constructed for surface installation on walls and other flat surfaces, this junction box provides a contained space for protecting splices, connectors, and small terminal blocks used in residential and light commercial electrical systems. The neutral gray finish helps the unit blend into interior and utility environments while preserving access for inspection and maintenance.

Advantages

This junction box offers a compact footprint and a depth suitable for common cable bends and connector bodies, enabling tidy and safe cable management. Its surface-mounted design simplifies installation where in-wall mounting is impractical or when retrofitting existing installations. The neutral color and unobtrusive form factor make it adaptable to a variety of interior settings without requiring additional finishes.

Suitable for (tasks / use cases)

• Housing wire splices and connector blocks for lighting circuits
• Terminating cables for switches, sockets, and small appliances
• Surface installations in renovation and retrofit projects
• Temporary or permanent junctions in utility rooms, basements, and garages

Key specifications

• External dimensions: 80 × 80 × 42 mm
• Mounting type: surface-mounted for installation on flat surfaces
• Color: gray
• Intended use: enclosure for electrical cable connections and terminations
• Suitable for residential and light commercial applications

How to use

Mount the junction box on a clean, flat surface using appropriate screws or fasteners for the substrate. Open the enclosure, route cables through suitable entry points, and make connections using approved connectors or terminal blocks. Ensure that all conductors are insulated and that connections comply with local electrical regulations. After completing the wiring, secure the cover to maintain protection against accidental contact and to keep the internal connections organized.

Usage recommendations

For safe and code-compliant installations, use compatible cable glands or conduit entries where required, avoid overcrowding the enclosure with excessive connectors, and verify that the internal clearance is adequate for the connector types used. If unsure about wiring or regulatory requirements, consult a qualified electrician.