Victron Energy Quattro 12/5000/220-100/100 Inverter Charger, 120V, VE.Bus

Overview

The Victron Energy Quattro 12/5000/220-100/100 120V is a 12V inverter/charger for boats that need high-capacity AC power from a house battery bank, shore power, and a generator. It combines a 5000VA true sine wave inverter, a 220A battery charger, and two 100A AC inputs in one VE.Bus unit, giving larger cruising boats, sportfish boats, and liveaboard systems a clean way to manage onboard AC loads.

The Quattro can accept two independent AC sources and automatically connect to the active source. On a boat, that usually means one input can be used for shore power and the other for a generator. When external AC power drops out, the main output transfers to inverter power in less than 20 milliseconds, which helps keep sensitive onboard electronics from shutting down.

In inverter mode, this model supplies 120VAC at 60Hz from a 12V battery bank, with a 9.5V to 17V DC input range. It is built for protected installation areas, with an aluminum enclosure, IP21 protection, VE.Bus communication, and support for system monitoring and configuration through compatible Victron controls and GX devices.

Key features

• 5000VA inverter output for substantial 120VAC loads from a 12V house battery bank.
• 220A adaptive battery charging helps recover large battery banks when shore power or generator power is available.
• Two AC inputs with an integrated transfer switch allow connection to shore power and a generator.
• Two AC outputs, with the second output live only when AC input power is available for loads that should not drain the battery.
• PowerControl and PowerAssist help manage limited shore or generator current by reducing charging load and using battery power during peaks.
• VE.Bus communication supports parallel, split-phase, and three-phase system arrangements when the installation calls for expansion.
• Compatible with remote monitoring and control through Victron GX devices and related VE.Bus accessories.
• Aluminum enclosure with IP21 protection suits dry, ventilated electrical spaces rather than exposed deck or splash zones.

Variants

This product is offered in two certification configurations for the same Victron Energy Quattro 12/5000/220-100/100 120V inverter/charger.

The main functional configuration remains the 12V, 5000VA, 120V VE.Bus Quattro layout. The listed option that changes between variants is the certification selection.

• QUA125021100: Certification Standard. This configuration matches installations where the standard certification listing is the required catalog option.
• QUA125021102: Certification UL 458. This configuration is the UL 458 version for installations where that certification is specified in the electrical plan or compliance requirements.

Installation and setup

This unit belongs in a dry electrical compartment with enough airflow around the enclosure for heat management. Because it handles high DC current and up to 100A AC input capacity per input, cable sizing, overcurrent protection, battery connections, grounding, and AC distribution should be planned as part of the vessel power system rather than treated as a simple drop-in accessory.

The unit can be configured with DIP switches for basic setup, while more advanced installations can use VE.Bus configuration tools and compatible Victron monitoring hardware. That matters on boats with mixed power sources, where shore current limits, generator output, battery charging behavior, and AC load priority need to work together without nuisance trips or unnecessary generator run time.

Marine use and fit

This Quattro is a strong match for boats with larger 12V house banks, heavier AC demand, and more than one external AC source. Common use cases include running cabin outlets, galley appliances, entertainment loads, chargers, and selected onboard systems from battery power while still charging quickly when shore power or generator power is available.

For saltwater vessels, placement is important. The IP21 enclosure is not intended for direct spray or weather exposure, so it should be mounted in a protected, ventilated location away from bilge water, washdown areas, and corrosive air paths whenever possible.