Victron Inverter/Charger MultiPlus

The MultiPlus, as the name suggests, is a combined inverter and charger in one elegant package. Its many features include a true sine wave inverter, adaptive charging, hybrid PowerAssist technology, plus multiple system integration features.

The Victron Energy MultiPlus is a powerful true sine wave inverter, a sophisticated battery charger that features adaptive charge technology, and a high-speed AC transfer switch in a single compact enclosure.

Unique PowerAssist feature
The MultiPlus will prevent overload of a limited AC source, such as a generator or shore power connection. First, battery charging will automatically be reduced when otherwise an overload would occur. The second level will boost the output of a generator or shore side supply with power taken from the battery.

Uninterrupted AC power (UPS function)
In the event of a grid failure, or when shore or generator power is disconnected, the inverter within the Multi is automatically activated and takes over the supply to the connected loads. This happens so fast (less than 20 milliseconds) that computers and other electronic equipment will continue to operate without disruption.

Virtually unlimited power thanks to parallel operation
Up to 6 Multis can operate in parallel to achieve higher power output. Three-phase or split-phase operation is also possible. Please check our datasheets to see which models have paralleling, three-phase, and split-phase capabilities.

Remote Monitoring and Control
When coupled with a GX device (e.g., Cerbo GX), you can monitor and control your Multi and systems locally (LAN) or remotely via the internet from anywhere in the world, using the free VRM app and free VRM portal website. Access can be from a phone, tablet, laptop, or PC for multiple operating systems. There is no end to the level of control, from adjusting your Multi to auto-starting a backup generator and more.

About the power rating — VA vs Watts

Victron rates this MultiPlus in VA (apparent power) — the engineering rating that describes what the inverter stage can deliver regardless of load type. We list it in watts in the variant title because that's the unit most customers compare on, but the precise ratings are below. For resistive loads (heaters, kettles, lighting), VA and continuous watts are effectively the same. For motors, fridges, pumps and switch-mode power supplies, size against the continuous W at 25 °C figure in the spec table. Why VA, not watts? Read our guide →

Specifications

Continuous power figures measured with non-linear loads at crest factor 3:1. Source: Victron MultiPlus 800VA–5kVA datasheet (PDF) and Victron MultiPlus 12/500/20 technical data.