Victron MultiPlus 48/3000/35-16 230V VE.Bus Inverter Charger

The Victron MultiPlus 48/3000/35-16 is a combined inverter and battery charger in a single unit, designed for 48V battery systems operating at 230V AC. It is suited to off-grid installations, backup power systems, and marine or vehicle applications where reliable AC output and intelligent charging are required in one compact unit.

Key Features

• 3000VA continuous inverter output at 230V AC from a 48V DC battery bank.
• 35A battery charger with adaptive charge algorithm to suit a range of battery chemistries.
• 16A AC transfer switch for seamless changeover between shore/generator power and inverter output.
• PowerControl function limits the load on the AC input, preventing generator or shore supply overload.
• PowerAssist function supplements AC input with battery power during peak demand, allowing a smaller generator or shore connection to be used.
• VE.Bus communication interface for system integration, parallel operation, and three-phase configuration.
• Supports parallel and three-phase operation: multiple units can be combined to increase capacity or create a three-phase system.
• Built-in battery temperature sensor input and programmable relay for system control.

Product Overview

The MultiPlus 48/3000/35-16 combines a pure sine wave inverter with a multi-stage battery charger. The inverter produces a clean 230V AC sine wave output, making it compatible with sensitive loads including motors, compressors, and electronic equipment. The 35A charger uses an adaptive algorithm that adjusts charge parameters based on battery behaviour, which helps extend battery life over time.

The 16A AC transfer switch connects the unit to a shore power or generator supply. When AC input is available, the MultiPlus passes power through to connected loads and charges the battery simultaneously. On loss of AC input, the transfer to inverter operation takes less than 20 milliseconds, which is fast enough to keep most computers and sensitive equipment running without interruption. PowerControl and PowerAssist allow the unit to work within the limits of a restricted AC supply, drawing from the battery when demand exceeds what the input can provide.

VE.Bus connectivity allows the MultiPlus to be configured and monitored using Victron's VEConfigure software and integrated into larger systems via a GX device such as the Cerbo GX. Multiple units can be connected in parallel for higher output capacity, or configured for split-phase or three-phase operation. This makes the MultiPlus a practical building block for scalable off-grid and backup power systems.

Technical Specifications

Applications

• Off-grid residential and cabin systems with a 48V battery bank.
• Backup power for critical loads where fast transfer time is required.
• Marine and narrowboat installations requiring 230V AC from a 48V DC system.
• Vehicle and mobile power systems (large vehicles, expedition builds).
• Generator-supplemented systems where PowerAssist reduces generator run time.
• Scalable installations where multiple units are paralleled or configured for three-phase output.

What Is Included

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

Installation Notes

The MultiPlus 48/3000/35-16 should be installed by a qualified electrician familiar with DC battery systems and AC wiring. At 48V DC with a 3000VA output, the unit draws significant DC current and requires correctly rated cabling, fusing, and a suitable battery bank. For any grid-connected or generator-connected application, ensure the installation complies with current UK wiring regulations (BS 7671) and any applicable network operator requirements. VE.Bus configuration requires Victron's VEConfigure software and a suitable interface cable or MK3-USB adapter. If integrating into a larger Victron system with a GX device, ensure firmware compatibility across all connected components before commissioning.