The Victron Quattro-II 24/3000/70-50 2x120V is designed for mobile power systems that need to manage two dedicated AC power sources. In an RV, marine, overland, or off-grid installation, that usually means one input for shore power and one input for a generator, each with its own configured current limit.
That two-input design is the key reason to choose a Quattro. Shore power and generator power often have different available capacity. A campground pedestal may support a higher draw, while a smaller onboard or portable generator may need a lower threshold to prevent overload. The Quattro-II allows both sources to be wired and configured separately, then automatically connects to the active source while managing pass-through power and battery charging.
This 24V model provides 3000VA inverter capacity, 2400W continuous output at 25°C, and up to 70A of battery charging for a 24V battery bank. In a properly designed system, it can typically support one major appliance plus everyday background loads such as lights, fans, chargers, networking equipment, entertainment devices, or a CPAP, depending on battery capacity, appliance demand, installation, and total system load.
For 50A RV-style layouts, the 2x120V behavior is especially useful. In inverter mode, the Quattro-II provides 120V power to both L1 and L2 output legs so 120V loads on either side of the panel can be powered from the battery. It does not create true 240V power from the battery; 240V loads are only supplied when connected to a proper split-phase AC source.
Product Role
The Victron Quattro-II 24/3000/70-50 2x120V helps manage two AC input sources, inverter power, and battery charging in a mobile power system.
It can help support:
- Dedicated shore power and generator connections
- Separate current limits for different AC input sources
- Automatic source selection when AC power is available
- Reliable 120V inverter power from a 24V battery bank
- Battery charging from shore power or generator input
Why It Matters
A Quattro is the better fit when your system has more than one AC power source. Instead of designing around a single-input inverter/charger or adding extra source-switching complexity, the Quattro-II is built to accept two independent AC inputs. For many mobile installations, that makes it a cleaner choice for rigs with both shore power and generator power.
The ability to set different thresholds for each AC input is especially important. Your shore power connection and generator may not be able to deliver the same amount of usable current. With the Quattro-II, the system can be configured around the real limits of each source, helping manage battery charging and AC loads without asking a smaller generator to behave like a full shore power connection.
PowerControl and PowerAssist add further flexibility. PowerControl helps prevent overload by respecting the configured input limit, while PowerAssist can supplement limited shore or generator input with battery power during short periods of higher demand. When demand drops, available AC power can be used to recharge the batteries.
Best For
- RVs with both shore power and generator input
- 50A RV electrical systems using 120V loads across L1 and L2
- Marine systems with dock power and onboard generator power
- Off-grid cabins or mobile workspaces with generator backup
- 24V battery systems needing a 3000VA inverter/charger
- Systems where automatic AC source handling is preferred over manual switching
Key Features
- Two independent AC inputs: Connect two AC sources, such as shore power and generator power, without building the system around a single input.
- Dedicated input current limits: Configure different current thresholds for each AC source, helping protect lower-capacity generators while still taking advantage of higher-capacity shore power.
- Automatic source connection: The Quattro-II automatically connects to an active AC source, simplifying day-to-day power management.
- PowerControl and PowerAssist: Helps manage limited shore or generator capacity and can supplement input power with battery power during short peak-demand periods.
- 3000VA inverter capacity: Provides dependable AC power for properly sized 120V mobile loads.
- 70A battery charging: Charges a 24V battery bank from available AC input when shore power or generator power is connected.
- 2x120V inverter output behavior: In inverter mode, provides 120V power to both L1 and L2 output legs for compatible 50A RV-style panels.
- VE.Bus system integration: Supports parallel and three-phase configuration, remote monitoring, and integration with Victron GX devices.
System Integration
The Quattro-II sits at the center of the AC side of a mobile power system. It connects shore power, generator power, the battery bank, and AC distribution, helping determine when power is passed through, when batteries are charged, and when inverter power is used.
In a complete Victron-based system, this inverter/charger can integrate with compatible lithium batteries, solar charge controllers, alternator charging equipment, GX monitoring, battery monitoring, and system controls. A Cerbo GX or other GX device can enable VRM remote monitoring, alerts, and remote access when connected to the internet.
MobileMustHave Expert Note
The Quattro-II is often the right choice when a system needs both shore power and generator power connected in a clean, configurable way. MobileMustHave helps customers think through real-world power sources, generator limits, shore power capacity, load priorities, battery charging goals, and monitoring needs so the inverter/charger fits the system instead of forcing the system to work around the inverter.
Not Sure If This Is Right For Your System?
Power systems can get complicated quickly, especially when batteries, inverter loads, shore power, solar, alternator charging, and monitoring all need to work together. If you are not sure whether this is the right product for your system, start with an Off-Grid Power Design Consult before buying. Our team can help review your rig, your goals, and your installation path so you can move forward with more confidence. Scroll down for more.
