Schneider Electric XB5KS2B4 XB5 Red Buzzer 24 V AC/DC

XB5KS2B4: red illuminated buzzer for a 22 mm panel hole, 24 V AC/DC

The XB5KS2B4 is a Schneider Electric Harmony XB5 illuminated buzzer in a plastic 22 mm housing. It gives a continuous or an intermittent tone, depending on which terminal is wired, with a stated noise level of 90 dB at 6.8 kHz measured at 0.1 m. Its rated supply is 24 V AC/DC. Seven Star LLC supplies the XB5KS2B4 in Oman and the GCC as an independent supplier based in Muscat.

Red marks an alarm or abnormal condition on most panel legends, so this version suits fault, trip or emergency annunciation where the operator must both hear and see the signal. The sibling references compared later on this page are the XB5KS2M4 and the XB5KSG; all three share the same 29 × 29 × 55 mm body and differ in supply voltage and cap colour.

Tone modes and wiring of the XB5KS2B4

The datasheet wiring diagram shows three connection points: the supply, an intermittent-tone terminal and a continuous-tone terminal. Which tone sounds is therefore a wiring decision made at installation, not a setting on the buzzer, and one XB5KS2B4 can serve either duty. A common arrangement is to feed the continuous terminal for an urgent condition and the intermittent terminal for a lower-priority warning, so that two meanings can be given by one device on different outputs.

The stated sound level is measured very close to the unit, at 0.1 m, with a tolerance of ±10 %. A sound level at the operator’s position will be lower and depends on the room, so for a noisy plant treat this part as a panel-level alert, not as a general alarm horn for a large hall. The connection is by screw clamp terminals or a plug-in connector, per the panel drawing in the datasheet.

Selection checklist and RFQ information for XB5KS2B4

Send the points below so that the part number can be confirmed against the datasheet and checked for availability in one reply.

• Part number XB5KS2B4 and quantity.
• The control voltage and whether it is AC or DC.
• Whether a continuous tone, an intermittent tone or both are needed.
• The cap colour required and the panel legend or nameplate.
• Panel thickness and the spacing to neighbouring 22 mm devices.
• Any approval to be shown, compared with the UL, CSA and BV entries on the datasheet.
• Delivery location in Oman or the GCC and the lead time you need.

Mounting the XB5KS2B4 in a panel

The this unit fits the standard 22.5 mm round hole; the datasheet recommends a finished diameter of 22.5 mm (22.3 mm with +0.4 mm tolerance). The clamping thickness range is 1 to 6 mm. The mounting drawing gives a minimum spacing between adjacent 22 mm devices of 40 mm in one direction and 30 mm in the other, so plan the door layout for those centres when a row of buzzers, lamps and buttons shares a plate.

Behind the panel the body measures 55 mm deep, with a net weight of only 0.024 kg, so rear clearance is rarely a problem on a standard door. Keep the cable entry and bending radius in mind where a plug-in connector is used.

Comparing XB5KS2B4 with XB5KS2M4 and XB5KSG

The this unit is the red 24 V AC/DC member of this group; select by control voltage first, then by cap colour.

Environment and approvals of the XB5KS2B4

The datasheet lists a UL type 4X/13 enclosure type and a resistance to a high-pressure washer of 9000000 Pa at 80 °C from 0.1 m. Operating and storage temperatures are both -40 to 70 °C. The overvoltage category is class II, and the protective treatment is code TH, the manufacturer’s code for tropical-climate protection. Certifications listed are UL listed, CSA and BV; the standards named include IEC 60947-5-1, IEC 60947-5-4, UL 508 and CSA C22.2 No 14.

These figures describe the front face of the XB5KS2B4 when installed correctly with its seal. Marine or offshore use must be justified against the exact BV entry on the datasheet. Do not assume hazardous-area suitability, since none is stated.

Technical specifications of the XB5KS2B4

Where XB5KS2B4 is used in Oman and the GCC

Panel buzzers of this kind give an audible cue on machine and process panels: pump and compressor skids, water treatment and desalination auxiliaries, packaging lines, workshop machines and small power distribution boards. The this unit is a compact way to add an audible indication without a separate sounder box. In hot, dusty or humid regional plants, the tropical protective treatment and wide temperature window are the relevant points, but always keep the unit behind a door seal that is in good condition.

It complements a pilot light rather than replacing one: the eye picks up the lamp, and the ear picks up the buzzer when the operator is facing away from the panel.

Supply voltage choice for the XB5KS2B4

The 24 V AC/DC rating is the flexible low-voltage choice. One reference serves a 24 V DC control bus, a PLC output card or a 24 V AC transformer winding, so a panel builder carries a single buzzer reference for machines that mix supplies. The datasheet lists a current draw of up to 58 mA, which is the highest of the three buzzers compared on this page, so check the capacity of a small PLC output before wiring several in parallel.

All three buzzers in this group use the same housing, so changing the voltage later means changing the part number, not the panel cut-out. Quote the control voltage of the panel in every enquiry for the this unit so that the right reference is checked.

Documents and quotation

The Schneider Electric datasheet for the XB5KS2B4 is attached on this page for your technical file. It holds the electrical, mechanical and environmental data summarised above, together with the dimension and panel cut-out drawings.

To request a quotation, send the part number and quantity through the enquiry form and we will reply with availability and delivery terms. Seven Star LLC is an independent supplier and does not act for the manufacturer, so please check the datasheet against your project requirements before ordering.