Description
xVictron MultiPlus-II 12/3000/120-32 230V Inverter Charger — PMP122305010
The Victron MultiPlus-II 12/3000/120-32 is a 3000VA inverter charger designed for 12V battery systems with 230V AC output. It combines a pure sine wave inverter, a 120A battery charger, and a 32A AC transfer switch in a single unit. It is suited to off-grid installations, marine and vehicle applications, and backup power systems where reliable AC output and fast battery charging are required.
Key Features
- 3000VA continuous inverter output with pure sine wave AC at 230V, suitable for sensitive loads and motor-driven equipment.
- 120A multi-stage battery charger with adaptive charge algorithm, optimised for 12V battery banks.
- 32A AC input transfer switch with near-instant changeover, maintaining supply to connected loads when shore or generator power is available.
- PowerControl function limits AC input current draw, preventing overload of a generator or shore power supply.
- PowerAssist function supplements AC input with inverter power during peak load demand, allowing a smaller generator or shore connection to be used.
- Supports parallel and three-phase operation when multiple units are configured together.
- Compatible with Victron VE.Bus for system integration, remote monitoring and configuration via VictronConnect or GX devices.
- Built-in battery temperature and voltage sensing for accurate charge management.
Product Overview
The MultiPlus-II is an evolution of Victron's established MultiPlus platform. The key addition over the original MultiPlus is a second AC input, which allows the unit to accept both shore power and a generator simultaneously, with the system managing which source is used. This is particularly useful in marine and off-grid installations where generator and shore connections may both be present.
The 120A charger output is substantial for a 12V unit and allows a large battery bank to be charged efficiently from a generator without requiring a separate charger. The adaptive charge algorithm adjusts the charge profile based on battery behaviour over time, which helps extend battery life in systems that cycle regularly. The 32A AC transfer switch is rated for continuous use and handles the changeover between inverter and mains or generator supply without interruption to connected loads.
PowerAssist is a practical feature for installations where the available AC supply is limited. When load demand exceeds what the AC input can supply alone, the inverter draws from the battery to make up the difference. This means a 16A shore connection, for example, can support loads that would otherwise exceed that limit, with the battery acting as a buffer. The unit weighs 20.5kg and is designed for fixed installation in a ventilated enclosure or dedicated inverter space.
Technical Specifications
| Parameter | Value |
| SKU | PMP122305010 |
| Inverter Output Power | 3000VA |
| Battery Voltage | 12V |
| Charger Output Current | 120A |
| AC Input Current (Transfer Switch) | 32A |
| AC Output Voltage | 230V |
| AC Output Waveform | Pure sine wave |
| Weight | 20.5 kg |
| GTIN | 8719076048916 |
Applications
- Off-grid cabins and remote buildings requiring reliable 230V AC supply from a 12V battery bank.
- Marine vessels with 12V house battery systems needing shore power integration and onboard charging.
- Motorhomes and large campervans where high-capacity battery charging and AC inverter output are both required.
- Backup power systems for critical loads in residential or light commercial settings.
- Generator-supplemented off-grid systems where PowerAssist reduces generator runtime and fuel consumption.
What Is Included
- 1x Victron MultiPlus-II 12/3000/120-32 230V inverter charger unit
Installation Notes
The MultiPlus-II should be installed by a qualified electrician or accredited installer with experience in battery-based inverter systems. The unit connects directly to a 12V DC battery bank and requires appropriately rated DC cabling and fusing in line with the installation current capacity. For any grid-connected or generator-integrated application, wiring must comply with BS 7671 (IET Wiring Regulations) and relevant building regulations. Configuration is carried out via VictronConnect software or a compatible GX device. Do not install in an unventilated space; the unit generates heat under load and requires adequate airflow.
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.