The Victron MultiPlus 48/3000/35-16 is a combined inverter and battery charger built into one unit, made for 48V battery systems running at 230V AC. It suits off-grid installations, backup power setups, and marine or vehicle applications where AC output and battery charging need to come from a single compact device.

Key features of the MultiPlus 48/3000/35-16

• Inverter output, 3000VA continuous at 230V AC from a 48V DC battery bank.
• Battery charger, 35A with an adaptive charge algorithm for different battery chemistries.
• AC transfer switch, 16A, switching between shore or generator power and inverter output.
• VE.Bus interface, for system integration, parallel operation, and three-phase configuration.
• PowerControl, limits AC input current draw to protect a generator or shore supply from overload.
• PowerAssist, draws extra power from the battery during peak demand so a smaller AC source can be used.

How it works

When AC input is available, the unit passes power through to connected loads while charging the battery bank at the same time. If AC input is lost, it switches to inverter mode automatically, fast enough for most computers and sensitive equipment to ride through the changeover.

VE.Bus lets multiple MultiPlus units be connected in parallel, or configured for split-phase or three-phase systems. That makes this unit useful on its own or as part of a larger installation. Paired with a Victron GX device such as the Cerbo GX, it supports full monitoring, remote configuration, and data logging through the VRM portal.

PowerControl caps the current drawn from the AC input to a limit you set, which protects weak generators or grid connections. PowerAssist takes this further: when loads exceed what the AC source can supply, the unit pulls the difference from the battery, then tops the battery back up once demand eases. A smaller generator can then handle a bigger load without tripping out.

Applications

• Off-grid residential and cabin installations with 48V battery banks.
• Backup power for critical loads such as communications equipment or medical devices.
• Marine and narrowboat installations needing 230V AC from a 48V DC system.
• Mobile or vehicle-based power systems supplementing or replacing generator input.
• Multi-unit systems in parallel or three-phase using VE.Bus.
• Hybrid solar setups alongside a Victron MPPT charge controller and GX monitoring device.

Installation notes

Fitting requires a qualified electrician familiar with DC battery systems and 230V AC wiring. Battery connections must be correctly rated for the current involved, with appropriate DC fusing fitted close to the battery terminals.

What's in the box

• 1x Victron MultiPlus 48/3000/35-16 230V VE.Bus inverter charger unit.