ABB Inora 1 Gang 10AX Intermediate Switch Classic Grey BL119-G

The 10AX designation indicates a nominal switching rating of 10 A, with the AX classification intended for lighting circuits that may have higher inrush currents, such as circuits using fluorescent or certain LED control gear. The connected load, circuit design and protective device must still comply with the switch manufacturer's specifications and the approved electrical design.

Intermediate switches are commonly specified for villas, apartments, hotels, offices, schools and commercial buildings where a lighting circuit must be controlled from three or more locations. Typical applications include staircases, long corridors, large rooms with several entrances, hotel passageways and multi-level access areas.

This model is specifically intended for intermediate switching and is normally installed between two two-way switches. It should not be selected as a direct substitute for a standard one-way switch unless an authorised electrical designer confirms a suitable circuit arrangement. For a single control point, use the appropriate one-way switch from a compatible range.

An intermediate switch changes the connection paths between two pairs of traveller conductors. In a standard multi-way circuit, two-way switches are installed at the first and last control points, while one or more intermediate switches are fitted between them. Operating any switch changes the circuit state and turns the connected lighting load on or off.

Installation should begin by isolating and verifying the electrical supply as de-energised. The electrician should mount a compatible concealed or surface box, identify the two pairs of traveller conductors, terminate them at the intermediate switch according to the terminal markings and ABB instructions, secure the mechanism without trapping cables, and fit the faceplate level with the finished wall. The circuit must then be tested for continuity, insulation resistance, polarity and correct operation before energisation.

Yes. Fixed electrical accessories should be installed, tested and commissioned by a qualified electrician. Work must follow the project's approved drawings, ABB installation instructions, applicable UAE electrical regulations and the requirements of the relevant local authority, such as DEWA, ADDC or the authority having jurisdiction.

A multi-location lighting circuit requires correctly identified conductors between the two-way and intermediate switches, including two pairs of traveller connections at each intermediate switch. Cable size, insulation type, conductor identification, earthing provision and containment must match the approved electrical design. The exact wiring arrangement should be confirmed from the circuit diagram and terminal markings rather than by colour alone.

It can be used in many appropriately designed LED lighting circuits, but compatibility depends on the total connected load, driver inrush current, power factor and switching frequency. The 10AX rating should not be assessed only by adding the lamps' steady-state wattage. For large LED groups or high-inrush drivers, an electrician or engineer should verify the design and consider a contactor or relay where required.

Yes. The Classic Grey finish suits contemporary villas, offices, hospitality spaces, retail interiors and other projects using neutral or industrial colour schemes. Before ordering for a complete project, verify the finish against approved material samples and coordinate it with sockets, data outlets, wall finishes and other accessories.

Use in bathrooms, wash areas, balconies or outdoor locations depends on the required ingress protection, installation zone and enclosure. This wall switch should not be assumed to be weatherproof. Where moisture, dust or water exposure is possible, install a suitably rated enclosure or select an accessory with the required IP rating in accordance with UAE project and authority requirements.

Contractors should verify the model number BL119-G, 1 gang intermediate function, 10AX rating, Classic Grey finish, compatible mounting box and alignment with the project's selected ABB Inora accessories. They should also review the lighting control schematic, approved material submittal, connected load, conductor arrangement, required quantity and local authority specifications.

A conventional multi-way lighting circuit uses two two-way switches at its ends and may include one or more intermediate switches between them. The practical quantity depends on the approved wiring design, cable routing, voltage-drop considerations, maintainability and project requirements. Each additional control point must be correctly wired and tested.

The wall box should be securely fixed, correctly aligned and deep enough for the conductors and terminations without excessive bending or compression. Cable entries should be protected, earth continuity maintained where required, and the switch installed flush with the finished surface. Confirm box and accessory compatibility before completing plastering, tiling or wall cladding.

After completing the required dead-circuit tests, the electrician should energise the circuit and operate every switch from every control location. The light should change state each time any two-way or intermediate switch is operated. Loose terminals, abnormal heating, intermittent operation or arcing require immediate isolation and corrective work.