ABB Millenium 1 Gang 1 Way 45A Double Pole Switch with LED Black Glass AM17744-BG

The 1 gang configuration means the plate operates one circuit. A 1 way switch controls that circuit from a single switching position. Double pole operation disconnects both the live and neutral conductors together, providing more complete isolation of the connected load. The protective earth conductor must remain continuous and must not be switched.

The documented rating is 45A at 250V AC. The switch must only be used where the circuit voltage, design current, load characteristics, cable size, protective device and installation conditions are compatible with this rating. High-inrush, inductive or specialised loads should be checked by the project electrical engineer before selection.

It can be considered as a local control or isolation switch for compatible high-current fixed loads in residential, commercial and construction projects. Typical applications may include selected water heaters, cooking appliances or similar fixed equipment, subject to the appliance rating and approved electrical design. It should not be selected solely from the nominal load wattage; current demand, inrush, diversity and manufacturer requirements must also be reviewed.

Its 250V AC rating is compatible with many UAE low-voltage single-phase applications, which commonly operate at approximately 230V AC and 50Hz. Final suitability depends on the project specification and the requirements of the relevant UAE authority, such as DEWA, ADDC, SEWA or the applicable local utility and municipality. Installation and testing should be completed by a licensed electrician using approved wiring accessories and materials.

The integrated LED provides a visible indication of the switch or connected-circuit status. Its exact indication depends on the product's terminal arrangement and the approved wiring configuration. The electrician should follow the ABB connection diagram supplied with the switch rather than assuming the LED confirms that the downstream equipment is electrically safe or fully isolated.

This model is intended for flush mounting, with the fixed wiring and mounting box concealed behind the finished wall. Before installation, the supply must be isolated, locked off where required and verified dead with suitable test equipment. The installer should confirm box compatibility and depth, prepare conductors without damaging them, connect the terminals according to ABB instructions, tighten them to the specified torque, secure the mechanism and faceplate, and then complete continuity, insulation, polarity and functional tests.

The listed product dimensions are 42 x 86 x 86 mm, with an 86 mm face width. The installer should verify the actual back-box format, internal depth, terminal clearance and cable bending space before wall finishing. A sufficiently deep box is particularly important for a 45A circuit because larger conductors require more room and must not be sharply bent, compressed or placed under terminal strain.

Cable size and protective-device rating cannot be determined from the switch rating alone. They must be calculated according to the connected load, installation method, cable length, ambient temperature, grouping, voltage drop, fault protection and local regulations. The switch's 45A marking is its documented switching rating, not an instruction to install a 45A breaker. A qualified electrical engineer or licensed electrician should specify the cable and protective device.

No. The ABB AM17744-BG is a switching and isolation accessory for a compatible circuit; it does not by itself provide overload, short-circuit or residual-current protection. Correctly rated MCB, RCBO, RCD or other protective devices must be provided where required by the circuit design, UAE authority regulations and the connected equipment manufacturer's instructions.

No IP rating is stated in the supplied product information, so it should not be assumed suitable for exposed outdoor, wet or splash-prone locations. For bathrooms, kitchens, utility areas or external installations, the designer must assess the installation zone, moisture exposure, required IP protection and local electrical rules. Use an appropriately rated enclosure or a dedicated weatherproof accessory where environmental protection is required.

Double pole switching disconnects both live and neutral conductors simultaneously, which can support safer local isolation of compatible fixed appliances during operation or maintenance. This is useful in villas, apartments, hotels, offices and other UAE developments where project specifications may require accessible appliance isolation. It does not remove the need for upstream isolation, protective devices, safe isolation procedures or verification that the circuit is dead.

Before installation, contractors should confirm the approved electrical drawings, circuit schedule, load calculation, mounting height, wall-box alignment, box depth and cable route. The box should be level and flush with the finished wall, with no plaster, debris or sharp edges affecting the mechanism. After installation, terminal tightness, earth continuity, polarity, insulation resistance, switch operation and LED function should be tested and recorded as required by the project quality plan.

Isolate the circuit before inspection or cleaning. Wipe the black glass surface with a soft, dry or lightly damp microfiber cloth, and avoid abrasive pads, harsh solvents and excessive liquid around the rocker or plate edges. If the switch becomes hot, discoloured, loose, cracked, noisy or produces an unusual smell, stop using it and arrange inspection by a qualified electrician.