Victron Energy MultiPlus Inverter/Charger 230V (Euro 50Hz) - 2kVA to 20kW

Note: This is a 230V / 50Hz (European standard) model with a single-phase output, most often used as a like-for-like replacement on a European-built boat. For US-standard 120/240V split phase, configure the MultiPlus for 60Hz and pair it with a Victron Autotransformer also set to 60Hz - the inverter supplies 230V/60Hz and the autotransformer splits it into 120/240V. If you're buying new for a US system, the US MultiPlus-II 120V or MultiPlus-II 2x120V are usually the simpler choice.

The Victron MultiPlus is a true sine wave inverter, an adaptive multi-stage battery charger, and a high-speed AC transfer switch in a single compact enclosure. Connect one shore-power or generator inlet, your battery bank, and your loads to one device - and when the AC source drops, the MultiPlus takes over the load in under 20 milliseconds, so connected electronics keep running without interruption.

This 230V / 50Hz listing spans a very wide range - from the compact 2 kVA up to a 20 kW single unit, at 12V, 24V, or 48V DC. Choose your model from the variant selector above.

Who the MultiPlus is built for

• European-built boats and RVs - a like-for-like 230V / 50Hz inverter/charger for shore-power charging and inverting house AC loads.
• Off-grid homes and cabins - the 3 kVA and 5 kVA models suit most off-grid builds; the 20 kW model anchors a large off-grid or backup system.
• Energy storage and self-consumption - pair with MPPT solar or a grid-tie PV inverter, and use the optional external current sensor to optimize self-consumption.
• Installers and DIYers - VE.Bus communication, VEConfigure, and parallel/three-phase scaling.

Why this is the MultiPlus

Inverter, charger, and transfer switch in one box

A low-distortion pure sine wave inverter, a smart adaptive charger, and an integrated AC transfer switch. One AC input feeds the unit - it charges from shore or generator when AC is present and inverts from the battery when it isn't. (If you need two AC inputs with automatic source selection, look at the Quattro instead.)

No-break AC output and two AC outputs

The main output rides through any source loss in under 20 milliseconds, fast enough that computers and other electronics keep running. The second (auxiliary) output is live only when an AC source is present - so non-critical loads like a water heater can't drain the battery overnight (available on 3 kVA models and larger).

PowerControl and PowerAssist

Set a current limit on the AC input and the MultiPlus uses only the leftover capacity for charging, so the inlet breaker never trips (PowerControl). When a peak load exceeds the inlet rating, it supplements from the battery and recharges once the peak passes (PowerAssist).

Adaptive multi-stage charging - lithium and lead-acid friendly

A four-stage charge profile (bulk, absorption, float, storage) with adaptive-charge software and an included battery temperature sensor, fully programmable for lithium, AGM, gel, and flooded banks. House-battery charge current ranges from 35 A up to 250 A by model. The 12V and 24V models also include a 4 A starter-battery trickle output.

Scales with your system: parallel and three phase

Up to six units run in parallel (the 20 kW model parallels with an external AC transfer switch - see Victron's application manual), and three units configure for three phase.

Monitor and control from anywhere

Add a Cerbo GX or Ekrano GX and your system is visible in the free VRM Portal from your phone, tablet, or laptop. Configure on-site with VEConfigure (via the MK3-USB interface) or the VictronConnect app over Bluetooth (via the VE.Bus Smart dongle). Read: Is the MultiPlus Smart?

Available variants

All variants are sold on this page - choose your model from the variant selector above.

Not sure which fits your bank? Get a custom quote from our Seattle team or book a system consultation and we'll size your inverter, charger, batteries, and cabling together.

Full technical specifications

Inverter

• DC input voltage range: 9.5 - 17 V (12V), 19 - 33 V (24V), 38 - 66 V (48V); 38 - 60 V on the 20 kW
• Output voltage: 230 VAC +/- 2%
• Output frequency: 50 Hz +/- 0.1% (adjustable to 60 Hz)
• Waveform: pure sine
• Continuous output at 25 C: 1,600 W (2 kVA), 2,400 W (3 kVA), 4,000 W (5 kVA), 20,000 W (20 kW)
• Peak power: 4,000 W (2 kVA), 6,000 W (3 kVA), 10,000 W (5 kVA), 25,000 W (20 kW, 1 min)
• Maximum efficiency: 93-96% depending on model

Charger

• AC input voltage range: 187 - 265 VAC, 45 - 65 Hz
• Adaptive 4-stage charging: bulk, absorption, float, storage
• Lithium-ion compatible
• Absorption voltage: 14.4 / 28.8 / 57.6 VDC (12V / 24V / 48V banks)
• Float voltage: 13.8 / 27.6 / 55.2 VDC
• Storage voltage: 13.2 / 26.4 / 52.8 VDC
• House-battery charge current: 80 A (12/2000), 120 A (12/3000), 70 A (24/3000), 35 A (48/3000), 120 A (24/5000), 70 A (48/5000), 250 A (48/20000)
• Starter-battery output: 4 A trickle (12V and 24V models only)
• Battery temperature sensor included

System and communication

• AC transfer switch: 30 A (2 kVA Compact), 16 A or 50 A (3 kVA, by model), 100 A (5 kVA and 20 kW)
• Auxiliary AC output: 16 A (3 kVA), 50 A (5 kVA and 20 kW); not available on the 2 kVA Compact
• VE.Bus port for parallel and three phase operation, remote monitoring, and system integration
• Two general-purpose communication ports (3 kVA and larger)
• External AC current sensor (optional): 100 A - extends PowerControl/PowerAssist and optimizes self-consumption
• One programmable relay - general alarm, DC under-voltage, or genset start/stop
• Remote on/off input
• Compatible with Cerbo GX, Ekrano GX, Digital Multi Control panel, VE.Bus Smart Dongle (Bluetooth), and MK3-USB interface

Protection

• Output short circuit
• Overload
• Battery voltage too high or too low
• Over-temperature
• 230 VAC on inverter output
• Excessive input voltage ripple

Enclosure and environment

• Material: aluminium, RAL 5012 blue
• Protection category: IP20 (pollution degree 2, OVC III)
• Operating temperature: -40 C to +65 C (fan-assisted cooling)
• Humidity (non-condensing): 95% max
• Maximum altitude: 2,000 m
• Battery connection: M8 bolts (2 kVA and 3 kVA); four M8 bolts (2 positive, 2 negative) on 5 kVA and 20 kW
• AC connection: G-ST18i / screw terminals (2-3 kVA); M6 bolts (5 kVA and 20 kW)
• Weight: 26 lb / 12 kg (2 kVA Compact); 40 lb / 18 kg (3 kVA); 66 lb / 30 kg (5 kVA); 176 lb / 80 kg (20 kW)
• Dimensions (h x w x d): 520 x 255 x 125 mm (2 kVA); 364 x 295 x 221 mm (3 kVA); 444 x 328 x 240 mm (5 kVA); 616 x 422 x 357 mm (20 kW)

Standards and certifications

• Safety: EN-IEC 60335-1, EN-IEC 60335-2-29, EN-IEC 62109-1
• EMC: EN 55014-1, EN 55014-2, EN-IEC 61000-3-2, EN-IEC 61000-3-3, IEC 61000-6-1, IEC 61000-6-2, IEC 61000-6-3
• Road vehicles (12V and 24V models): ECE R10-4
• Anti-islanding: see Victron's website

Recommended accessories

• Victron Autotransformer - derive US 120/240V split phase from this 230V unit (both set to 60Hz)
• Cerbo GX or Ekrano GX - system controller and VRM gateway
• SmartShunt or BMV-712 Smart - battery state-of-charge monitoring
• MK3-USB interface - configure the MultiPlus from a laptop via VEConfigure
• Compatible lithium battery banks from Victron, Epoch, and MG Energy Systems
• Victron MPPT solar charge controllers for hybrid solar systems

Installation and sizing help

Wiring a MultiPlus into a marine or off-grid system isn't plug-and-play. Battery cable sizing, fusing, and grounding all need to match the model you choose - and the 20 kW model has specific parallel and transfer-switch requirements. Two free resources to start with:

• Victron Wiring Unlimited - the canonical reference for sizing the DC and AC sides of a Victron system.
• Our AWG to Metric Conversion chart.

If you want a second set of eyes on your one-line diagram, our certified technicians do system consultations and full custom quotes. Email support@bluemarine.com or call (800) 628-6306.

Frequently asked questions

Can I use this 230V unit on US 120/240V power?

Not directly - its output is 230V / 50Hz (European standard). To run on US power, configure the MultiPlus for 60Hz and pair it with a Victron Autotransformer also configured for 60Hz, which converts the 230V/60Hz output into US-standard 120/240V split phase. For a new US system, the US MultiPlus-II 120V or MultiPlus-II 2x120V models are usually simpler.

What's the difference between the MultiPlus and the MultiPlus-II?

The MultiPlus-II adds ESS features - built-in anti-islanding, an external current-sensor option, and grid-tie country approvals. For a new grid-parallel or ESS install, the MultiPlus-II is the current generation; the MultiPlus remains a strong choice for marine, mobile, and standard off-grid systems.

What does the MultiPlus Compact mean?

The 2 kVA model in this listing is the MultiPlus Compact - a slimmer enclosure for tighter installs. It's a full MultiPlus electrically, but does not include the second AC output or auxiliary output found on the 3 kVA and larger models.

Is it lithium battery compatible?

Yes. The charger supports custom voltage and current profiles for LiFePO4 and other lithium chemistries, and it communicates with Victron's VE.Bus BMS over the communication port.

What warranty does it come with?

A 5-year limited warranty from Victron Energy, upgradable to 10 years for an additional 10% of the purchase price. Blue Marine handles the warranty claim process for you. Email support@bluemarine.com.

Why buy your MultiPlus from Blue Marine

• True Blue Victron Energy Distributor - we carry the full Victron line and know the products inside out.
• Certified technicians on the phone - (800) 628-6306 for sizing, troubleshooting, and warranty support.
• Free shipping over $49 from our Seattle warehouse.
• 60-day hassle-free returns.
• Local pickup available in Seattle, WA.
• Custom quotes and full system design - we'll spec the inverter, batteries, MPPTs, cabling, and monitoring as one package.
• Dealer and installer program with trade pricing. Apply here.