Schneider Electric XB5AA25 Black Flush Push-Button NO+NC

XB5AA25: black flush NO+NC Harmony XB5 plastic push-button

The XB5AA25 is a Schneider Electric Harmony XB5 plastic push-button for a 22 mm panel hole. It has a black flush head (unmarked), a dark grey plastic bezel, a spring-return operator and one normally open plus one normally closed contact. Seven Star LLC supplies the XB5AA25 in Oman and the GCC as an independent supplier based in Muscat, usually to panel builders and maintenance buyers who want a light, economical operator for machine and control panels.

A reading of the code that fits the datasheet titles of this group, offered as our own interpretation and not as the manufacturer’s ordering table: XB5A is the plastic flush push-button operator, and the characters after it carry the colour, marking and contact choice. The comparison table further down places this reference beside its siblings.

Contact ratings, sealing and approvals of the XB5AA25

The contacts are silver alloy (Ag/Ni). The thermal current is 10 A, the insulation voltage 600 V at pollution degree 3 and the impulse withstand 6 kV. Operational ratings include 3 A at 240 V and 6 A at 120 V in AC-15, and 0.27 A at 250 V and 0.55 A at 125 V in DC-13, with a 10 A gG cartridge fuse for short-circuit protection. These are control-circuit ratings for relay coils, contactor coils and PLC inputs, not for direct motor switching.

Electrical life is quoted at 1 million cycles for 2 A at 230 V and 3 A at 120 V in AC-15, at fewer than 3600 operations an hour and a load factor of 0.5, with mechanical life of 10 million cycles. Low-level reliability is stated for 5 V and 1 mA in a clean atmosphere, which matters when XB5AA25 feeds a PLC input.

The datasheet lists IP66, IP67, IP69, IP69K, UL type 4X/13 and IK03 impact protection, which is lighter than the IK06 of the metal series. Operating temperature is -40 to 70 °C and storage is -40 to 70 °C. Vibration resistance is 5 gn from 2 to 500 Hz and shock is 30 gn for 18 ms or 50 gn for 11 ms.

The certifications listed are DNV, CSA, UL listed, LROS (Lloyd’s Register), BV. Check any ship-classification or listing requirement against the datasheet for this exact reference before accepting XB5AA25 for marine or listed-equipment duty.

Mounting and terminal wiring of the XB5AA25

The operator fits a 22.5 mm hole, and the dimension drawing gives a clamping thickness of 1 to 6 mm. The body is 42 mm high, 30 mm wide and 52 mm deep behind the panel face, a compact body and noticeably lighter than the metal XB4 series. Terminals are screw clamp, tightened to 0.8 to 1.2 N.m, accepting up to two conductors of 1.5 mm² with cable ends or from 0.22 mm² without.

The datasheet lists resistance to a high-pressure washer at 7000000 Pa and 55 °C from 0.1 m. Over-tightening the nut or a skewed fit can spoil the seal on a thin panel, so use a torque tool on the first panel of a batch.

How the XB5AA25 operates

The head returns under spring force after release. The normally closed contact changes state after 1.5 mm of travel, and the total stroke is 4.3 mm. The operating force at the point of change is 3.5 N. Contact operation is slow-break, which is normal for control-circuit buttons.

Positive opening is listed for this part: a mechanical linkage forces the normally closed contact open even if it has welded, which is why designers choose such contacts for stop and interlock functions. Terminals of this unit are marked (13-14)NO, (21-22)NC under the ISO numbering.

The XB5AA group and how XB5AA25 fits

These references share the same plastic bezel, 22 mm mounting and 1 to 6 mm clamping range, and differ in colour, marking and contact block. The this unit is listed in the table below with its siblings from this lane.

Where a black button belongs

The extra normally closed contact lets one black button command one circuit and open an interlock at the same moment, for example a jog that also drops a holding relay. Black keeps it neutral and non-safety. The plastic bezel keeps the unit light and economical, so this operator suits panels where cost and weight matter more than a metal face.

Technical specifications of the XB5AA25

Typical uses of XB5AA25 in Oman and the GCC

Typical homes for this unit are workshop machines, small skids, motor starters and utility panels in Oman and the GCC. In process plants the same operator fits auxiliary and field stations; the plastic head resists corrosion on coastal sites, though a metal XB4 operator is the better choice where physical impact is expected.

Selection checklist and RFQ information for XB5AA25

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

• Part number XB5AA25 and the required quantity.
• The colour (black) and marking (unmarked) you need.
• The contact block: 1 NO + 1 NC.
• Panel thickness at the hole, against the 1 to 6 mm clamping range.
• Rear clearance behind the panel, against the body depth.
• The circuit voltage and current the contacts will switch.
• Any approval needed by the project, compared with the datasheet list.
• Delivery location in Oman or the GCC and the time you need.

Documents and quotation

The Schneider Electric datasheet for the XB5AA25 is attached on this page for your technical file. It carries 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.