Schneider Electric ZB4BA131 Harmony XB4 and XB5 Command Device Heads and Bodies

Razz Middle East supplies Schneider Electric Harmony XB4 and XB5 command device components across Saudi Arabia — operator heads, contact blocks, light blocks and mounting collars in the 22 mm format. Every item is sourced to order against the reference you quote and delivered duty-paid to your site. Typical lead time is three weeks from order confirmation.

Schneider Electric ZB4BA131

This page covers Schneider Electric part number ZB4BA131 — Harmony XB4 and XB5 Command Device Heads and Bodies. Quote the full part number with your enquiry and the item is unambiguous: one part number identifies one exact product variant, including options that are not visible in the description.

About Harmony XB4 and XB5 Command Device Heads and Bodies

Harmony is a build-up system rather than a set of finished parts, and the ZB references in this family are the pieces you assemble. A working pushbutton on a panel door is a head, a fixing collar and one or more contact or light blocks stacked behind it. ZB4 references carry the metal bezel; ZB5 references are the plastic-bezel equivalent, dimensionally interchangeable on the same 22 mm cut-out but a different look and a different price point. The rest of the reference states the operator type: flush, projecting, mushroom, illuminated, key-operated, selector with two or three positions, and stay-put or spring-return action.

Because the system is modular, a reference in this family is usually not a complete device on its own. Ordering a head without the contact block behind it produces something that mounts correctly and switches nothing. That is the single most common ordering error on Harmony, and it is worth checking before you send an enquiry rather than after the box arrives.

Harmony XB4 and XB5 Command Device Heads and Bodies in Saudi Arabia

Command devices are consumables in Saudi industry in a way that heavier equipment is not. Panel doors on outdoor kiosks, pump stations and water treatment skids see direct sun, dust ingress and daily operator contact, and a pushbutton or selector is usually the first thing on a panel to fail. Replacing the head while keeping the existing contact blocks — or the reverse — is normal maintenance practice, which is exactly why this family is ordered as separate parts rather than complete devices.

The 22 mm cut-out is effectively universal across panel builders in the Kingdom, so a Harmony head fits an existing hole in a panel that was originally populated by another manufacturer. That matters on older installations at Jubail and Yanbu where the original brand is no longer easy to source. Illuminated devices are worth specifying carefully: LED blocks in a hot panel outlast incandescent, and voltage must match the control circuit rather than the supply.

Ordering and lead time

Quote the full reference and tell us what else you need behind it. If you are ordering a head, say how many normally-open and normally-closed contacts it must carry and whether it is illuminated; if illuminated, state the control voltage. A head reference alone is a legitimate order and we will supply exactly that, but it is worth being certain that is what you meant.

For a replacement, the fastest route is a photograph of the back of the existing device with the reference visible on the block, plus a note of the bezel type. ZB4 and ZB5 are not interchangeable in appearance even where they are interchangeable in fit, and a panel with mixed bezels looks like a repair rather than a maintained asset. Typical lead time is three weeks from order confirmation. Items are supplied to order and delivered duty-paid, with customs clearance handled by us.

Specifications are taken from the supplier's published catalogue data. Confirm against the manufacturer's current datasheet before ordering.