Schneider Electric XB4BK123M5 Illum. Selector Green 230 V AC

XB4BK123M5 illuminated selector switch with green handle

The XB4BK123M5 is an illuminated selector switch from the Harmony XB4 metal range, with a green standard handle that lights up from an integral universal LED. It has two positions at 90°, a contact set of 1 NO + 1 NC and a rated supply of 230–240 V AC at 50/60 Hz. Seven Star LLC supplies the XB4BK123M5 in Oman and the GCC as an independent supplier based in Muscat.

The lit handle shows at a glance that a mode is selected, which is the reason to pick this version over a plain selector. The details below follow the datasheet.

LED supply and lighting data of the XB4BK123M5

The light source is a universal LED with an integral base. Rated supply voltage is 230–240 V AC at 50/60 Hz, with limits of 195–264 V AC, and the current consumption is 14 mA. The datasheet gives a service life of 100,000 h at rated voltage and 25 °C and a surge withstand of 1 kV. This is the mains-voltage version, so the lamp circuit and the contacts are on the same voltage class; keep that in mind when labelling the panel and planning isolation. The signalling is steady, not flashing.

XB4BK123M5 technical specifications

Positions and contacts of the XB4BK123M5

The handle holds either of its two positions at 90°. Contacts are 1 NO + 1 NC with terminal markings 13-14 and 21-22, and the datasheet records positive opening for the NC contact per IEC 60947-5-1 appendix K. Operating torque is 0.14 N.m NO changing electrical state.

XB4BK123M5 compared with the other illuminated selectors

Contact ratings and environment of the XB4BK123M5

What this unit can switch is set by its contact block: slow-break action, silver alloy (Ag/Ni) contacts, a 10 A conventional thermal current, 600 V insulation voltage at pollution degree 3 and 6 kV impulse withstand. The datasheet names a 10 A gG fuse as short-circuit protection. The utilisation-category ratings below are what a designer needs when the contacts drive coils or logic inputs.

• 3 A at 240 V, AC-15, A600
• 6 A at 120 V, AC-15, A600
• 0.1 A at 600 V, DC-13, Q600
• 0.27 A at 250 V, DC-13, Q600
• 0.55 A at 125 V, DC-13, Q600
• 1.2 A at 600 V, AC-15, A600

The degree of protection is IP66, IP67, IP69, IP69K. The impact rating on the datasheet is IK04. Vibration resistance is 5 gn (f= 2–500 Hz). Shock resistance on the datasheet is 30 gn (duration = 18 ms) for half sine wave acceleration and 50 gn (duration = 11 ms) for half sine wave acceleration. The permitted operating ambient temperature is -40–70 °C.

Selection and installation of the XB4BK123M5

• Lamp supply: 230…240 V AC at 50/60 Hz (limits 195…264 V AC).
• Positions: 2 positions 90°.
• Contacts: 1 NO + 1 NC, positive opening on the NC.
• Handle colour: green.
• Depth behind panel: 68 mm.

Cut the panel opening to 22.5 mm and secure this unit with the fixing torque the datasheet specifies (0.8–1.2 N.m). Conductors go into screw clamps: ≤ 2 × 1.5 mm² with cable end and ≥ 1 × 0.22 mm² without cable end. Accepted screwdrivers are Philips and pozidriv no 1 and flat 4 mm or 5.5 mm. Take the lamp supply from the correct control circuit, not from the switched contact.

Before handover, confirm that the handle lights at the rated voltage, that each position gives the expected contact state, and that the lamp circuit voltage matches the label. Keep the test result with the panel documentation and repeat the check after any wiring change.

Where the XB4BK123M5 is used in Oman and the GCC

An illuminated selector is typical for mode selection on motor control centres, pump controls and process panels where operators need to see which mode is active from a distance, including in bright outdoor sunlight or in dim plant rooms. The sealed metal body is suited to dusty, hot environments.

An illuminated handle combines the control and the indication in one cut-out, which saves panel space. Document which lamp state means what, and include the lamp supply in the circuit drawing so that a dark handle can be traced to a supply fault quickly.

Information to send with an RFQ for the XB4BK123M5

Please give us the exact reference XB4BK123M5, how many pieces you need and where they are going in Oman or the GCC. State the lamp supply voltage (24 V AC/DC or 230-240 V AC), the number of positions and the handle colour. For a replacement job, a clear photo of the old device and its marking removes any doubt about the match.

Documents and quotation

A copy of the Schneider Electric datasheet of this unit is attached to this page for download, and every value quoted here comes from that document.

For a quotation, use the RFQ form and quote XB4BK123M5 together with the quantity and the destination. Seven Star LLC will come back with stock status and delivery time.