Description
Victron MultiPlus-II Pure Sine Wave Inverter/Charger
The Victron Energy MultiPlus-II 24/3000/70-32 Inverter/Charger is a multifunctional power conversion solution designed for off-grid solar systems, marine applications, mobile power installations, and compatible energy storage systems.
Combining a pure sine wave inverter, intelligent battery charger, and automatic AC transfer switch, the MultiPlus-II provides reliable power management from batteries, shore power, generators, or compatible grid connections.
Featuring Victron’s PowerControl and PowerAssist technologies, the MultiPlus-II helps prevent overloaded AC sources while allowing battery power to supplement available input power during periods of increased demand.
This model is designed for 230V AC systems. It is not a direct replacement for a North American residential split-phase inverter.
Key Features and Benefits
- Pure Sine Wave Inverter: Delivers clean AC electricity for compatible electronics, appliances, and other electrical loads.
- Integrated Battery Charger: Charges connected batteries using compatible shore, generator, or utility AC power.
- Automatic Transfer Switch: Seamlessly transitions supported loads to battery-powered inverter operation when external AC power is interrupted.
- PowerControl Technology: Limits AC input demand to help prevent generator, shore power, or grid overload.
- PowerAssist Technology: Supplements limited incoming AC power with battery energy during periods of increased electrical demand.
- Dual AC Outputs: Separates essential loads from equipment that should operate only when an external AC source is available.
- Energy Storage System Integration: Supports compatible Victron ESS configurations with the required additional system components.
- Solar System Compatibility: Integrates with compatible MPPT solar charge controllers and AC-coupled solar inverters.
- Parallel and Three-Phase Capability: Supports expandable installations using appropriately configured compatible units.
- VE.Bus Communication: Enables configuration, system integration, and monitoring through compatible Victron devices.
- Remote Monitoring: Supports Victron Remote Management through a compatible GX device and internet connection.
- Programmable Relay: Provides configurable functions for alarms, battery conditions, and generator control.
Intelligent Inverter and Battery Charging
The Victron MultiPlus-II combines AC power conversion and battery charging in a single integrated unit.
When a compatible external AC source is available, the inverter/charger can supply connected loads while charging the battery bank. When external AC power is interrupted, the inverter automatically takes over supported loads using stored battery energy.
This makes the MultiPlus-II suitable for installations that require dependable power management, battery charging, and continuity of electricity during source interruptions.
PowerControl and PowerAssist Technology
Victron PowerControl helps manage limited AC input capacity by adjusting battery charging demand based on the power required by connected electrical loads.
When appliances require additional electricity, the inverter prioritizes the available AC supply and reduces charging demand to avoid overloading the source.
PowerAssist extends this functionality by supplementing insufficient incoming AC power with energy from the connected battery bank.
When demand decreases, the system can redirect available input power toward battery charging.
These features are particularly useful in generator-powered systems, marine shore power installations, and locations with limited electrical service capacity.
Automatic Backup Power and Dual AC Outputs
The MultiPlus-II features an integrated transfer switch that maintains power to supported loads when the primary AC source is disconnected.
Its main AC output is designed to continue supplying electricity through the inverter when sufficient battery energy is available.
The auxiliary AC output operates only when external AC input power is present. This allows nonessential appliances, such as water heaters or other discretionary loads, to remain disconnected during battery-only operation.
This arrangement helps preserve stored battery energy for essential electrical equipment.
Solar Energy Storage and Off-Grid Applications
The MultiPlus-II can serve as a central power conversion component in a compatible off grid solar system or battery-based energy storage installation.
When paired with an appropriate Victron MPPT solar charge controller, solar panels can charge the battery bank while the MultiPlus-II converts stored DC electricity into AC power.
The inverter/charger can also integrate with compatible AC-coupled solar equipment in supported configurations.
Solar panels cannot be connected directly to the MultiPlus-II PV input because this inverter/charger does not include an integrated solar charge controller. Solar charging requires appropriate additional equipment.
Expandable Power Systems
For installations requiring additional capacity, compatible MultiPlus-II units can be configured for parallel operation or supported three-phase systems.
System expansion requires matching equipment, appropriate configuration, and compliance with Victron’s installation and system design requirements.
This flexibility makes the MultiPlus-II suitable for both individual installations and larger professionally designed power systems.
VE.Bus Communication and Remote Monitoring
The MultiPlus-II supports Victron VE.Bus communication for system configuration, control, and integration with compatible Victron monitoring equipment.
Supported accessories include Victron Cerbo GX, VE.Bus Smart Dongle, Digital Multi Control Panel, and MK3-USB interface.
When connected through a compatible GX device with internet access, the system can use the Victron Remote Management (VRM) Portal to display operating data, provide notifications, and support remote configuration.
Monitoring accessories and communication interfaces are separate components unless explicitly included in a bundle.
Applications
- Off grid solar systems with compatible battery storage
- Marine and yacht electrical systems
- Mobile and vehicle-based power installations
- Generator-supported battery systems
- Shore power management
- Compatible grid-connected energy storage systems
- Battery backup for essential electrical loads
- Expandable Victron power conversion systems
Product Specifications
| Specification | Details |
|---|---|
| General Specifications | |
| Manufacturer | Victron Energy |
| Series | MultiPlus-II |
| Model | MultiPlus-II 24/3000/70-32 |
| MPN | PMP242305010 (provided identifier; not independently mapped in the family datasheet) |
| Product Type | Pure sine wave inverter/charger |
| Nominal Battery Voltage | 24V DC |
| Inverter Rating | 3,000VA |
| Maximum Battery Charging Current | 70A |
| Transfer Switch Rating | 32A |
| AC Output | 230V AC, single-phase |
| Inverter Specifications | |
| DC Input Voltage Range | 19–33V DC |
| Output Voltage | 230V AC ±2% |
| Output Frequency | 50Hz ±0.1%; adjustable to 60Hz |
| Continuous Apparent Power at 25°C | 3,000VA |
| Continuous Active Power at 25°C | 2,400W |
| Continuous Active Power at 40°C | 2,200W |
| Continuous Active Power at 65°C | 1,700W |
| Peak Power | 5,500W |
| Maximum Apparent Feed-In Power | 3,000VA, subject to approved ESS configuration |
| Maximum Efficiency | 94% |
| Zero-Load Power | 13W |
| Zero-Load Power, AES Mode | 9W |
| Zero-Load Power, Search Mode | 3W |
| Battery Charger Specifications | |
| AC Input Voltage Range | 187–265V AC |
| AC Input Frequency | 45–65Hz |
| Maximum AC Input Current | 32A |
| Maximum Battery Charge Current | 70A at up to 25°C ambient |
| Absorption Charge Voltage | 28.8V |
| Float Charge Voltage | 27.6V |
| Storage Charge Voltage | 26.4V |
| Battery Temperature Sensor | Supported |
| Battery Connection | M8 bolts |
| AC Transfer and Load Management | |
| Transfer Switch | 32A |
| Main AC Output | Continuous inverter-backed output |
| Auxiliary AC Output | 32A; active only when external AC input is available |
| Transfer Time | Less than 20ms |
| PowerControl | Integrated |
| PowerAssist | Integrated |
| Optional External AC Current Sensor | 50A or 100A |
| Programmable Relay | Integrated |
| Communications and System Integration | |
| VE.Bus Communication | Supported |
| General-Purpose Communication Ports | 2 |
| Remote On/Off | Supported |
| Remote Monitoring | Victron VRM through compatible GX device |
| Bluetooth Monitoring | Optional VE.Bus Smart Dongle |
| Configuration | VEConfigure with compatible MK3-USB interface |
| Parallel Operation | Up to 6 compatible units, subject to Victron configuration requirements |
| Three-Phase Operation | Supported with compatible matched units |
| Solar Charge Controller | Not integrated; compatible external equipment required |
| Mechanical and Environmental Specifications | |
| Dimensions (H × W × D) | 499 × 268 × 141mm (approximately 19.65 × 10.55 × 5.55 inches) |
| Weight | 19kg (approximately 41.9 lbs) |
| Enclosure Material | Steel |
| Color | Blue, RAL 5012 |
| Enclosure Protection | IP22 |
| Cooling | Fan-assisted |
| Operating Temperature | -40°C to +65°C |
| Maximum Humidity | 95%, non-condensing |
| Maximum Operating Altitude | 2,000m |
| AC Connection | Screw terminals, 13mm² (6 AWG) |
| Protection and Standards | |
| Protection Functions | Output short circuit, overload, battery overvoltage, battery undervoltage, overtemperature, AC voltage on inverter output, and excessive input voltage ripple |
| Safety Standards Listed in Datasheet | EN-IEC 60335-1, EN-IEC 60335-2-29, EN-IEC 62109-1, EN-IEC 62109-2 |
| EMC Standards | EN 55014-1/-2; EN-IEC 61000-3-2/-3; IEC 61000-6-1/-2/-3 |
| Anti-Islanding Certification | Consult Victron’s applicable country-specific certificates |
| North American UL Certification | Not established by supplied datasheet |
Frequently Asked Questions
What is the Victron MultiPlus-II used for?
The MultiPlus-II combines an inverter, battery charger, and automatic transfer switch for off-grid, marine, mobile, backup power, and compatible energy storage systems.
Is the Victron MultiPlus-II a solar inverter?
It is a battery inverter/charger that can integrate with solar energy systems. Solar charging requires a compatible external MPPT charge controller or an appropriately configured AC-coupled solar system.
Can solar panels connect directly to the MultiPlus-II?
No. Solar panels require compatible solar charging equipment because the MultiPlus-II does not have an integrated MPPT solar charge controller.
Does the MultiPlus-II work with lithium batteries?
It can operate with compatible lithium battery systems when properly configured and integrated with the required battery management and communication equipment. Verify compatibility with the specific battery manufacturer.
Does the MultiPlus-II provide backup power automatically?
Yes. Its integrated transfer switch allows supported loads to continue operating from battery power when the external AC supply is interrupted, provided sufficient battery energy is available.
What is Victron PowerAssist?
PowerAssist supplements a limited generator, shore power, or utility AC source with battery power when electrical demand temporarily exceeds the available input capacity.
Can multiple MultiPlus-II units operate together?
Yes. Compatible units can be configured for parallel or three-phase operation using the appropriate Victron configuration procedures and system equipment.
Does the MultiPlus-II include Wi-Fi or Bluetooth?
Not as an integrated feature in this model. Remote connectivity and Bluetooth functionality require compatible optional Victron communication equipment.
Can the MultiPlus-II be monitored remotely?
Yes. A compatible Victron GX device can connect the system to the Victron Remote Management portal for operating data, notifications, and remote access.
Can this model connect directly to a US residential electrical system?
No. The supplied datasheet identifies a European-style AC voltage configuration rather than a conventional North American split-phase configuration. Confirm the correct inverter model for the intended electrical service.
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