Description
xVictron MultiPlus-II 12/5000/220-50 230V Inverter Charger
The Victron MultiPlus-II 12/5000/220-50 is a combined inverter and battery charger designed for 12V battery systems requiring up to 5000VA of continuous AC output at 230V. It is suited to off-grid installations, marine and vehicle applications, and backup power systems where a single, integrated unit is preferred over separate components.
Key Features
- 5000VA continuous inverter output at 230V AC from a 12V DC battery bank.
- 220A battery charger built in, allowing fast recharge from a generator or shore power.
- 50A AC transfer switch with near-instant switchover, maintaining supply to connected loads during a mains or generator failure.
- PowerControl function limits the total current drawn from a shore power or generator supply, preventing overload of the AC source.
- PowerAssist function supplements the AC input with inverter power when load demand exceeds the available input current.
- Two AC outputs: AC-Out-1 remains live during a power cut; AC-Out-2 is disconnected when the unit runs on battery, allowing non-essential loads to be shed automatically.
- Compatible with Victron VE.Bus for system integration, remote monitoring and configuration via VictronConnect or Venus OS devices.
- Supports parallel and three-phase operation when multiple units are used together.
Product Overview
The MultiPlus-II combines a true sine wave inverter, a multi-stage battery charger and an AC transfer switch in a single enclosure. The 12V input makes it appropriate for systems built around 12V lithium or AGM battery banks, which are common in marine, vehicle and smaller off-grid installations. At 5000VA, it can handle substantial loads including air conditioning units, power tools and multiple domestic appliances simultaneously.
The 220A charge current is notably high for a 12V unit. In practice, this allows a large battery bank to be recharged quickly from a generator, reducing generator run time. The PowerControl and PowerAssist functions are particularly useful where the AC input is current-limited, such as a marina shore power pedestal or a small generator. PowerControl caps the draw from the source; PowerAssist makes up any shortfall from the battery, so the full rated load can still be supplied without tripping the source breaker.
The dual AC output configuration is a practical feature for installations with a mix of critical and non-critical loads. AC-Out-1 is always live when the unit is operating; AC-Out-2 drops out when the unit switches to battery, which can be used to disconnect loads such as water heaters or battery chargers for other equipment. Configuration and firmware updates are handled via VE.Bus using a MK3-USB interface or a compatible GX device.
Technical Specifications
| Parameter | Value |
| SKU | PMP122505012 |
| DC Input Voltage (Nominal) | 12V |
| Inverter Output Power | 5000VA |
| AC Output Voltage | 230V |
| Battery Charge Current | 220A |
| AC Transfer Switch Current | 50A |
| AC Input Voltage Range | 230V |
| Output Waveform | True sine wave |
| AC Outputs | 2 (AC-Out-1 always live; AC-Out-2 disconnects on battery) |
| Communication | VE.Bus |
| Weight | 30.14 kg |
| GTIN | 8719076065920 |
Applications
- Off-grid cabins and remote properties with 12V battery banks requiring high-capacity AC output.
- Marine vessels where 12V DC systems are standard and 230V AC output is needed for onboard appliances.
- Large motorhomes and expedition vehicles with high AC load requirements.
- Backup power systems for critical loads in commercial or agricultural premises.
- Generator-assisted off-grid systems where PowerAssist reduces generator run time and fuel costs.
What Is Included
- 1x Victron MultiPlus-II 12/5000/220-50 230V inverter charger unit.
Installation Notes
The MultiPlus-II 12/5000/220-50 operates at high DC currents from a 12V battery bank. Correct cable sizing, fusing and busbar connections are critical at this power level. Installation should be carried out by a qualified electrician or accredited installer with experience in battery-based inverter systems. For any grid-connected or generator-connected application in the UK, ensure compliance with the relevant wiring regulations and that all AC connections are made by a competent person. Configuration via VE.Bus requires a MK3-USB adapter or a compatible GX device. Battery compatibility, including lithium battery profiles, should be confirmed and set correctly before commissioning.
Return Policy
xWe offer a 14-day, no-quibble returns or replacement policy because we want you to be totally satisfied with your purchase.
If you are unhappy in any way with your purchase, you can return it for a refund or a replacement, as long as you return it in the same condition as it arrived (original/undamaged packaging and product) and within 30 days of receiving it. We will pay for your return postage on a faulty item as long as you send it using Royal Mail 2nd class recorded delivery (for EU or International Shipments, you have to use our UPS account, we will provide you with a return label)
Please keep in mind the following:
- Items returned within 14 days but not in their original and undamaged packaging will also incur a -15% charge per package.
- If you return an item that doesn't adhere to our returns procedure or doesn't include a returns form, you may be liable for a £10 administration fee
- Individual items from a bundle can't be returned, refunded or exchanged. If you want a refund/credit/exchange for a bundle, all items must be returned to us.
Before you return your item, please make sure that:
- You follow our returns process (outlined below)
- The goods and packaging are undamaged
IMPORTANT: We need to be able to identify an item with your order. We can only do this if you follow our returns process. Please do not send us items back that do not follow this process as they cannot be identified properly and will not be replaced or refunded.
What delivery method do I need to use when returning an item?
You must send the goods back to us via Royal Mail 2nd class recorded delivery. Refunds on faulty items returned are reimbursed within 5 working days.
Can I return just one item from multiple purchases?
Yes. Once you start the returns process you will go to a page that will allow you to choose which items you want to be replaced or refunded.
Returning faulty goods
If your item is faulty, you need to follow the returns policy, where you will be able to state that it’s faulty. The product will then arrive at our warehouse for testing.
If your purchase is not within 14 days
You can still exchange your item for a different product or for credit to use on the Voltacon Solar or Ledison-led-lights.co.uk websites (-15% from the credit amount).
Returns outside of the 14-day period do not qualify for the free returns policy.
Returning an item within the warranty
If you have a warranty and want to return a faulty item, you just need to follow our standard returns process. When we receive your item, we will then check that it’s within warranty and for any faults before arranging a replacement.