Victron Energy MultiPlus-II 12V 3000VA 120V Inverter Charger 50A UPS PowerAssist

Victron Energy MultiPlus-II 12V 3000VA 120V Inverter Charger With PowerAssist & UPS Function

The Victron Energy MultiPlus-II 12/3000 120V is a powerful combination inverter and battery charger designed for marine, RV, off-grid, backup power, and energy storage applications. Combining the proven features of the MultiPlus with advanced MultiGrid technology, the MultiPlus-II delivers reliable AC power, intelligent battery charging, and seamless power management in one compact unit.

Featuring PowerControl, PowerAssist, built-in anti-islanding protection, and UPS functionality, the MultiPlus-II automatically manages available power from shore, generator, or grid sources while providing uninterrupted energy when external AC power is unavailable.

Advanced PowerAssist Technology

The PowerAssist feature prevents limited AC sources such as generators or shore power connections from becoming overloaded. When additional power is needed, the MultiPlus-II supplements available AC input with energy from the connected battery bank. Once demand decreases, available power is used to recharge the batteries.

Energy Storage System (ESS) Compatible

The MultiPlus-II is a key component for Victron Energy ESS systems, allowing integration with MPPT solar charge controllers and grid-tied solar inverters. It provides flexible energy management for residential, mobile, and off-grid power systems.

Fast UPS Backup Power

When grid, generator, or shore power is disconnected, the MultiPlus-II automatically switches to inverter mode to maintain AC power to connected loads. With a transfer time of less than 20 milliseconds, computers, electronics, and sensitive equipment continue operating without interruption.

Remote Monitoring & System Control

When paired with a Victron GX device such as the Cerbo GX, users can monitor and control the entire power system locally or remotely through the VRM platform. Adjust settings, monitor battery performance, control connected equipment, and manage backup power systems from a phone, tablet, laptop, or computer.

Key Features:

• 12V 3000VA pure sine wave inverter and battery charger
• 120V AC output for residential, marine, RV, and off-grid applications
• 50A transfer switch capability
• PowerControl prevents generator and shore power overloads
• PowerAssist boosts available AC power using battery energy
• Built-in UPS functionality for uninterrupted AC power
• Less than 20ms transfer time for sensitive electronics
• Compatible with Victron ESS energy storage systems
• Supports solar integration with MPPT chargers and grid-tie inverters
• Remote monitoring and control with GX devices
• Built-in anti-islanding protection
• Reliable inverter and charger combination in one unit

Technical Specifications:

• Manufacturer: Victron Energy
• Product: MultiPlus-II 12/3000 120V Inverter Charger
• Manufacturer Part Number: PMP122305120
• UPC: 8719076057338
• DC Input Voltage: 12V
• AC Output Voltage: 120VAC
• Continuous Power Output: 3000VA
• Transfer Switch: 50A
• PowerControl: Yes
• PowerAssist: Yes
• UPS Function: Yes
• Battery Charger: Integrated
• Remote Monitoring: Compatible with Victron GX devices

Ideal Applications:

• RV and camper power systems
• Marine electrical systems
• Off-grid solar installations
• Home backup power systems
• Energy storage systems
• Mobile and emergency power solutions
• Generator-assisted power systems

The Victron Energy MultiPlus-II 12/3000 120V Inverter Charger delivers dependable backup power, intelligent battery charging, and advanced energy management in a single high-performance unit. With PowerAssist, UPS capability, ESS compatibility, and remote monitoring support, it is an ideal solution for professional-grade power systems.