The Victron MPPT WireBox-M is a protective wiring enclosure that fits under the SmartSolar MPPT 100-30, 100-50, 150-35 and 150-45 charge controllers. It covers the electrical connections on the underside of the unit, giving a tidy, enclosed termination point for PV array and battery cabling.

Key features

• Fitment, designed for Victron SmartSolar MPPT 100-30, 100-50, 150-35 and 150-45 charge controllers.
• Protection, encloses the battery and PV wiring terminals against accidental contact and environmental ingress.
• Direct accessory, a genuine Victron part, so it fits without modification.
• Weight, 0.175 kg, adding minimal bulk to the installed unit.
• Cable management, keeps wiring neat and contained, useful in van, marine and cabinet installations.

Product overview

The WireBox-M attaches beneath the compatible MPPT charge controller and encloses the live wiring connections, reducing the risk of accidental contact with terminals once installed. It suits panel boards, enclosures and mobile applications where a clean finish matters. It does not alter the electrical performance of the charge controller. This is the medium-size variant in the Victron wirebox range, sized for the 100-30, 100-50, 150-35 and 150-45 models. Confirm the correct MPPT model before ordering, as fitment is specific.

Applications

• Residential and commercial solar PV installations using compatible Victron MPPT controllers.
• Van conversions and motorhome builds where exposed terminals are a safety or aesthetic concern.
• Marine installations needing tidy, protected wiring terminations.
• Off-grid battery systems housed in shared or accessible enclosures.

What's in the box

• 1 x Victron MPPT WireBox-M (compatible with 100-30, 100-50, 150-35 and 150-45)

Installation notes

Fit the WireBox-M only after all wiring connections to the MPPT charge controller have been completed and checked. Confirm the correct wirebox variant for your specific MPPT model before fitting. Solar PV and battery wiring should be carried out by a qualified electrician or MCS-accredited installer, and grid-connected systems must meet G98 or G99 requirements for the wider installation.