Victron Energy MultiPlus-II 12/3000/120-32 Inverter/Charger

The Victron Energy MultiPlus-II 12/3000/120-32 is a powerful and versatile inverter/charger designed for professional marine, mobile, and off-grid applications. Combining a 3000VA pure sine wave inverter, a 120A adaptive battery charger, and a high-speed 32A AC transfer switch, it delivers reliable AC power from a 12V battery bank while intelligently managing shore power or generator input. The MultiPlus-II features PowerAssist technology, which prevents overload of a limited AC source by supplementing with battery power, and supports parallel and three-phase operation for scalable system configurations.

Advantages

With its compact design, high efficiency (up to 94%), and advanced features like VE.Bus communication and remote monitoring capability, the MultiPlus-II offers unmatched flexibility and reliability. The adaptive 4-stage charge algorithm optimizes battery life, while the PowerAssist and programmable relay provide intelligent energy management. Ideal for RVs, boats, and off-grid homes, this unit ensures seamless power transition and robust performance in demanding environments.

Suitable for

• Marine and yachting applications
• Recreational vehicles (RVs) and campervans
• Off-grid solar power systems
• Backup power for critical loads
• Mobile service vehicles and emergency response units

Key specifications

• Model: MultiPlus-II 12/3000/120-32
• Input DC Voltage: 12 V (range 9.5–17 V)
• Output AC Voltage: 230 VAC ± 2%
• Output Frequency: 50 Hz ± 0.1% (60 Hz selectable)
• Continuous Output Power: 3000 VA / 2400 W at 25°C
• Peak Power: 6000 W
• Max Battery Charge Current: 120 A
• Transfer Switch Current: 32 A
• Inverter Type: Pure Sine Wave
• Max Efficiency: 94%
• Zero-load Power: 18 W
• Protection Category: IP22
• Operating Temperature Range: -40 to +65°C
• Communication Ports: VE.Bus, AUX, Remote ON/OFF, Relay
• Parallel and 3-phase Operation: Yes (up to 6 units)
• PowerAssist Feature: Yes
• Charger Algorithm: Adaptive 4-stage
• Number of AC Outputs: 2 (AC Out 1, AC Out 2)

Recommendations

For optimal performance, pair the MultiPlus-II with Victron Energy batteries and a Cerbo GX or Color Control GX for remote monitoring. Ensure proper ventilation and use appropriately sized DC cabling. Consult the manual for detailed installation and configuration instructions.