ABB Inora 1 Gang 2 Way 20AX Switch White BL112

One gang means the switch has one operating rocker for one controlled circuit. Two way means it can be paired with another two-way switch to control the same light from two different positions. The 20AX designation indicates a 20 A switching rating with additional suitability for certain lighting loads that can generate high inrush or inductive currents. The connected load must still remain within the product rating and the approved circuit design.

A two-way switch is commonly installed at both ends of a corridor, at the top and bottom of a staircase, at two entrances to a room, or beside a bed and near the bedroom door. The BL112 may also be used as a conventional one-location switch when connected according to the approved wiring diagram.

The switch is relevant to UAE residential and commercial projects where compatible wall switches are required for nominal 230 V, 50 Hz low-voltage systems. Final suitability depends on the approved project specification, circuit load, mounting system and applicable requirements of the relevant UAE authority, such as DEWA, ADDC or the local electricity provider. Product certification and technical documentation should be verified before consultant approval or installation.

It may be used for compatible LED lighting circuits when the total connected load and the drivers' inrush current remain within the manufacturer's permitted switching limits. LED drivers can draw a brief but significant startup current, so installers should assess driver specifications rather than relying only on the combined wattage. For large LED circuits, a suitably rated contactor or control device may be required.

The AX rating is intended to provide improved switching capability for lighting loads that may have high inrush or inductive characteristics, including certain fluorescent fittings and control gear. However, the number and type of fittings must be checked against their ballast or driver data, the switch manufacturer's limits and the electrical design. A contactor should be used where load characteristics exceed direct-switching capacity.

Installation should be completed by a qualified electrician after isolating, locking off and verifying that the circuit is de-energised. In a standard two-location arrangement, the incoming or switched live is connected to the common terminal, while two strapper conductors link the corresponding two-way terminals on both switches. Connections must follow the terminal markings and ABB instructions, with conductors correctly sized, terminated and tightened. The faceplate should then be aligned and secured without trapping or damaging cables.

A standard mechanical two-way switch generally switches the live conductor and normally does not require a neutral connection at the switch itself. Neutral conductors are usually joined separately within the circuit. Actual wiring can vary by installation method, so the electrician must inspect the circuit, follow the terminal markings and comply with the approved wiring diagram.

Cable type and conductor size must be selected by the electrical designer or qualified electrician according to the circuit protective device, connected load, installation method, ambient temperature, voltage drop and local regulations. The conductors must also fit the switch terminals correctly. The 20AX marking must not be used by itself to determine cable size or circuit-breaker rating.

Yes, it can be used in construction projects with a compatible flush or surface mounting box. For concrete block walls, electrical boxes and conduits should be positioned and levelled before plastering. For gypsum partitions, a suitable dry-lining box must be firmly secured to the board or support frame. Confirm box dimensions, fixing centres and wiring space against the ABB Inora product documentation before procurement.

Do not assume that the standard switch is weatherproof or suitable for wet areas. Bathroom installation must respect the prescribed electrical zones and protection requirements, while outdoor or exposed locations generally require a compatible weatherproof enclosure with the necessary IP rating. In humid, dusty or coastal UAE environments, enclosure selection and corrosion protection should be considered by the project electrician.

The BL112 is primarily identified as a lighting switch. It should not automatically be selected for fans, water heaters, air-conditioning equipment, pumps or socket circuits merely because it carries a 20AX rating. These loads may require double-pole isolation, motor-rated switching, fused connection units, contactors or dedicated isolators. Use the switching device specified for the appliance and approved electrical design.

Contractors should confirm the model number BL112, one-gang two-way function, 20AX rating, white finish, required quantity, mounting-box compatibility and approved wiring accessories schedule. They should also verify ABB technical data, certification, terminal capacity and consultant or authority approval. Ordering by exact model helps prevent mixing it with one-way, intermediate, double-pole or lower-rated switch variants.

Keep the switch clean and dry, and wipe its external surface with a soft cloth without abrasive cleaners or excessive moisture. Arrange inspection by a qualified electrician if the rocker becomes loose, the faceplate is damaged, operation is intermittent, or there are signs of heat, discoloration, buzzing or burning odour. The circuit must be isolated before removing the plate or checking terminals.

Two two-way switches are used when one light must be controlled from two locations. If control is required from three or more locations, an intermediate switch is installed between the two end two-way switches. The ABB Inora BL112 is a two-way switch and should not be substituted for an intermediate switch in a multi-location circuit.