ABB Inora 1 Gang 10AX Intermediate Switch, Small Rocker Starry Black BL119S-885

The 10AX designation indicates a lighting-switch rating designed to handle loads up to the manufacturer's specified 10AX capacity, including certain lighting loads with higher switching currents than basic resistive loads. Actual suitability depends on the lamp type, driver or ballast, operating voltage, power factor and inrush current. LED circuit loads should therefore be checked against ABB technical data rather than calculated only from total wattage.

A one-way switch controls a light from one position, while two two-way switches control it from two positions. An intermediate switch is installed between the two-way switches when control is required from three or more positions. The BL119S-885 is not normally used by itself as a standard one-way switch.

It is commonly specified for staircases, long corridors, bedrooms with multiple entrances, villa hallways, hotel circulation areas, office passages and multi-level commercial spaces. In construction projects, it provides convenient lighting control wherever users need to operate the same circuit from at least three locations.

The switch is installed at an intermediate control point between two correctly wired two-way switches. The circuit must be isolated and verified dead before work begins, and the conductors must be identified and connected according to the terminal markings and ABB wiring instructions. Installation should be completed by a qualified electrician using a compatible box, wiring accessories and conductor sizes.

Not usually. An intermediate switch has a different switching function and conductor arrangement from a one-way switch. A direct replacement is appropriate only where the existing point is already wired as the intermediate position of a multi-point lighting circuit. A qualified electrician should inspect the circuit before replacement.

It is intended for lighting-control applications, but compatibility must be confirmed against the project's supply characteristics and ABB product documentation. UAE buildings commonly use a 230 V, 50 Hz single-phase supply for final lighting circuits. Selection and installation should comply with the applicable UAE authority regulations, approved project specifications and relevant wiring standards adopted by the local authority.

Contractors should follow the requirements of the relevant local authority or utility, such as DEWA in Dubai or the applicable authority in the project emirate, together with approved drawings, load schedules and project specifications. Correct circuit protection, conductor sizing, insulation, earthing arrangements, enclosure selection and accessibility must be verified. Where BS 7671 or another standard is referenced by the project, the installation should also meet its applicable provisions.

It may be used in an appropriately designed LED lighting circuit, subject to the switch rating and the LED driver's electrical characteristics. LED drivers can produce high inrush currents even when their running wattage is low, so contractors should verify the number and type of drivers permitted by ABB and avoid relying solely on the combined lamp wattage.

Yes. The Starry Black finish and small-rocker design suit contemporary residential, hospitality and commercial interiors, particularly where dark fittings, black hardware or contrasting wall finishes are specified. For a consistent appearance, use compatible ABB Inora plates and accessories in the same finish and product range.

Do not assume the switch is weatherproof unless ABB documentation confirms a suitable IP rating. For outdoor areas, bathrooms, wash zones, plant spaces or dusty construction environments, it must be installed only in a correctly rated enclosure and in an approved location. The enclosure's IP rating, sealing method and material should match the expected exposure to moisture, dust, heat and sunlight.

Confirm that the circuit requires a 1 gang intermediate switch rather than a one-way or two-way device. Also verify model number BL119S-885, Starry Black finish, small-rocker style, compatible ABB Inora plate or frame, mounting-box dimensions, conductor arrangement, circuit load and the number of control points shown on the electrical drawings.

After completing the required electrical safety tests, operate every switch position in the circuit and confirm that the light can be turned on and off from each location regardless of the other rocker positions. The electrician should also check terminal tightness, secure mounting, correct alignment, smooth rocker operation and the absence of exposed conductors, overheating or abnormal arcing.

Yes, it is relevant to villa, apartment, hotel, office and retail fit-out projects that require multi-location lighting control and a modern black finish. Final approval depends on the electrical consultant's specification, authority requirements, circuit design, approved material submittal and compatibility with the selected ABB Inora wiring-accessory system.