Schneider Electric ZBVM1 White Light Block

ZBVM1: white universal LED light block for Ø22 heads

The ZBVM1 is a Schneider Electric light block from the Harmony XB4 and XB5 families, built to sit behind a 22 mm illuminated head and provide its white light from an integral LED. It runs directly from 230 to 240 V AC V at 50/60 Hz and connects by screw clamp terminals. Seven Star LLC supplies the ZBVM1 in Oman and the GCC as an independent supplier in Muscat, mainly for maintenance teams and panel shops that need to restore a lit station without redesigning it.

On the datasheet generated on 8 Nov 2026 the ZBVM1 is not marked as discontinued. It is a universal LED block, the newer type that the manufacturer positions for the current illuminated heads, so the visible colour comes from the cap rather than from the block. Stock should therefore be confirmed before a project depends on it.

Where such light blocks are used in Oman and the GCC

Illuminated stations are found on motor control centres, pump and fan starters, packaged skids, generator panels and local control stations in oil and gas, power, water and desalination plants. A block like ZBVM1 is usually bought as a spare so that a failed lamp can be changed in minutes. The wide -40 to 70 °C range suits Gulf panels, but cabinets in direct sun should be ventilated or shaded because LED life falls as temperature rises.

Where the ZBVM1 sits in a station

The ZBVM1 is the lamp layer of a three-part stack. The head and its lens or cap are at the front, the light block clips behind it, and one or more contact blocks can be stacked with it. The datasheet lists the electrical composition codes M1, M2, M3, M4, M5, M6, M10, MF1, P1, P2 and PF1, which describe the combinations of contact blocks that can be assembled with this integral-LED block for front mounting. Two fixing collars are shown on the dimension drawing, the ZB5AZ009 for XB5 stations and the ZB4BZ009 for XB4 stations.

A white universal block on 230 to 240 V AC is the version for mains-level pilot circuits in the Gulf, where 230 V single-phase control supplies are common. As with the 110 to 120 V sibling, the lens colour of the head gives the visible colour.

Technical data for the ZBVM1

How the ZBVM1 lights the head

The datasheet describes the light source of the ZBVM1 as a universal LED with an integral LED bulb base, and the supply as direct, so no extra dropping resistor or transformer is involved. The rated supply is 230 to 240 V AC V AC at 50/60 Hz, with supply limits of 195–264 V AC, and the current consumption is stated as 19 mA. Service life is quoted as 100,000 hours at rated voltage and 25 °C.

The listed light colour is white. In practice that means the block is a neutral source and the visible colour is decided by the lens of the head in front of it, which is why this block type is the one the manufacturer promotes as the single replacement for the coloured LED blocks.

Information to send with an RFQ for ZBVM1

The points below let us confirm the part number against the datasheet and check stock in one reply.

• Part number this unit and the quantity, remembering the pack size of 5.
• The supply voltage and whether it is AC or DC at the station.
• The head type and lens colour in front of the block.
• Whether the older coloured-LED type is needed to match existing stations, or a universal block is acceptable.
• The contact blocks stacked with it, using the composition code if known.
• Any approval the project asks for, to compare with the datasheet.
• Delivery location and urgency.

A photo of the existing block with its markings makes a like-for-like check quick.

Comparing the ZBVM1 with similar ZBV blocks

Eight light blocks in this group share the same ZBV short name, the same screw clamp terminals and the same 0.017 kg body. They differ in supply range, LED type and colour, and the table summarises what the datasheets say.

Electrical immunity and environment of the ZBVM1

The datasheet lists a surge withstand of 1 kV to IEC 61000-4-5, resistance to fast transients of 2 kV to IEC 61000-4-4, 10 V/m radiated field immunity to IEC 61000-4-3, and electrostatic discharge immunity of 6 kV on contact and 8 kV in air to IEC 61000-4-2. Emission is stated as class B. Those figures matter on panels that share a cabinet with drives, contactors and radio equipment.

The block itself is protected only to IP20, so it relies on the head and the enclosure for ingress protection. Temperature is given as -40 to 70 °C for both storage and operation, and the protective treatment code is TH. Certifications listed are CSA and UL listed, and the standards include IEC 60947-5-1, IEC 60947-5-4, IEC 60947-5-5, UL 508 and CSA C22.2 No 14. Check these against the project approval list before relying on any of them for this unit.

Fitting and replacing a ZBVM1 block

The block is front mounted, so it clips onto the back of the head from the panel side. The terminals accept up to two 1.5 mm² conductors with cable ends, or one conductor as small as 0.22 mm² without a ferrule, and the datasheet gives a tightening torque of 0.8 to 1.2 N.m. The screw heads accept a Philips or Pozidriv no 1 driver or a flat 4 mm or 5.5 mm blade. The net weight of one block is 0.017 kg.

When replacing a failed lamp, isolate the control circuit first, note the wire positions, fit the new this unit in the same orientation and then test the lamp and the contacts together. The part is sold in indivisible quantities of 5, so a single replacement still arrives as a pack.

Documents and quotation

A copy of the Schneider Electric datasheet for the ZBVM1 is attached on this page for your technical file. It holds the electrical, mechanical and environmental values that are summarised above.

To request a quotation, send the part number and the 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 compare the datasheet with your project requirements before you order.