ABB Inora 4 Gang 1 Way 10AX Switch Starry Black BL104-885

Four gang means the plate contains four individual switches. One way means each circuit is controlled from one switch position only, rather than from two locations. The 10AX designation indicates a 10 A switch rating designed to accommodate the switching characteristics of lighting loads, including certain fluorescent or inductive lighting circuits. The connected load must still remain within ABB's published limits and applicable electrical regulations.

This switch is suitable for indoor residential, commercial and hospitality installations where four lighting circuits need to be controlled at one point. Typical applications include villas, apartments, offices, shops, hotel rooms, corridors and building service areas. It can control separate lighting zones such as ceiling lights, decorative lights, wall lights and selected outdoor-lighting circuits, provided the switch is installed indoors or in a suitably rated weatherproof enclosure.

No. The BL104-885 is a one-way switch, so each connected circuit is intended to be operated from one location. A staircase, corridor, large room or other area requiring control from two positions normally needs two-way switches and appropriate interconnecting wiring. Confirm the required switching arrangement with the project electrician before ordering.

It may be used with compatible LED lighting circuits when the connected LED drivers, inrush current and total load fall within ABB's specified switching limits. LED drivers can produce a brief start-up current considerably higher than their normal operating current, so selection should not be based only on lamp wattage. For large LED groups or high-inrush drivers, an electrician may recommend a contactor or relay.

Installation should be completed by a qualified electrician. The supply must be isolated and proved dead before work begins. The electrician should confirm the back-box compatibility and depth, identify the incoming live conductor and four switched-live conductors, terminate them according to ABB's wiring diagram, verify earthing and conductor condition, secure the switch without trapping cables, and test polarity, insulation, continuity and operation before energising the circuits.

A conventional mechanical one-way switch normally interrupts the live conductor and does not generally require a neutral connection at the switch mechanism. However, the actual wiring arrangement must follow the ABB terminal markings, the supplied instructions and the building's approved electrical design. Neutral conductors should never be connected to switch terminals unless specifically required by the manufacturer.

Check that the selected flush or surface back box matches the switch format, mounting points and required depth. Ensure there is enough space for four circuit conductors without sharp bending or compressed terminals. The wall box should be level, securely fixed and free from plaster or debris. Do not rely on an existing box solely because another switch appears to fit; verify compatibility using the current ABB datasheet or a physical sample.

Yes. The Starry Black finish suits modern UAE villas, apartments, offices, retail spaces and hospitality interiors, particularly when coordinated with dark door hardware, aluminium frames or contemporary décor. For consistent appearance across a project, confirm that other required sockets, data outlets and accessories are available in the matching ABB Inora finish before finalising the electrical schedule.

This product should not be assumed to be weatherproof or suitable for wet zones unless ABB documentation confirms the required IP rating. UAE outdoor installations can be exposed to heat, humidity, dust and water, while bathrooms have regulated electrical zones. Use a suitably IP-rated enclosure or accessory where required, and have the installation location assessed by a qualified electrician according to the relevant local authority rules.

The installation should follow the regulations and approval requirements of the authority having jurisdiction, such as DEWA, ADDC or the applicable emirate utility and municipality, together with the approved project specifications. Proper circuit protection, conductor sizing, earthing, accessible isolation and electrical testing are essential. Any claimed conformity with a particular BS, EN or IEC product standard should be verified from the current ABB technical documentation for model BL104-885.

It should not be selected for motors, pumps, heavy appliances or site equipment solely on the basis of its 10AX lighting rating. Motor loads can have high starting currents and may require a dedicated isolator, motor starter, relay or contactor. For exhaust fans or other inductive loads, verify the equipment rating and ABB's permitted load category with the electrical engineer before connection.

The schedule should identify the manufacturer and range, model BL104-885, four-gang configuration, one-way switching function, 10AX rating, Starry Black finish, quantity, mounting arrangement and intended circuit references. Contractors should also verify the matching back box, accessories, terminal capacity and current ABB datasheet before procurement, especially on projects requiring consultant or authority approval.

Isolate the electrical supply if inspection or maintenance is required. Clean the visible surface with a soft, dry or lightly damp cloth and avoid abrasive pads, solvents, strong chemicals and direct water spray, as these may damage the finish or enter the mechanism. Loose operation, heat marks, buzzing, cracking or discolouration should be investigated promptly by a qualified electrician rather than repaired by the user.