The Victron Quattro-II 48/5000/70-50/50 230V is the next generation of the proven Quattro system.
It combines a pure sine wave inverter, a powerful 70 A charger, and automatic mains transfer in a robust, compact device – ideal for demanding energy applications in solar, marine, and off-grid systems.
What makes the Quattro II special is that it has two independent AC inputs (grid and generator) and two AC outputs.
The main output provides uninterrupted power for critical loads, while the second output is only used when an external power source is active – perfect for loads such as boilers or chargers that should not be powered from the battery.
With PowerAssist technology, the Quattro-II automatically supports the external power source by switching in energy from the battery when needed.
The PowerControl function allows you to individually limit the maximum mains or generator power consumption – ideal for mobile or grid-limited applications.
The Quattro-II is also ESS (Energy Storage System) compatible and can be integrated into modern hybrid and self-consumption systems.
Thanks to VE.Bus communication, it can be connected to other Victron components, including parallel connection and three-phase operation.
In combination with Cerbo GX or Color Control GX, it offers comprehensive remote monitoring and control via the Victron VRM portal.
Typical applications
- Photovoltaic & hybrid systems (ESS)
- Boats, yachts, and motorhomes
- Island & off-grid systems
- Emergency power & backup systems
- Mobile & industrial energy systems
Main advantages
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Two AC inputs (mains & generator) with automatic switching
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Two AC outputs – for priority and secondary consumers
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Pure sine wave inverter – suitable for sensitive electronics
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Powerful 70 A charger for efficient battery management
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PowerAssist & PowerControl for intelligent energy distribution
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ESS-compatible – ideal for hybrid and self-consumption systems
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VE.Bus communication for parallel connection and three-phase operation
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Compatible with Cerbo GX, Color Control GX, and VRM Portal
Technical data
| Continuous power at 25 °C |
5000 VA / 4000 W |
| Input voltage DC |
48 V (37–66 V) |
| Charging current |
max. 70 A |
| AC inputs |
2 × 50 A (mains & generator) |
| AC outputs |
2 (main & auxiliary output) |
| Output voltage |
230 V AC (± 2%) / 50 Hz |
| Efficiency |
Up to 95% |
| Interfaces |
VE.Bus, Remote On/Off, ESS, GX compatibility |
| Dimensions (H × W × D) |
506 × 275 × 147 mm |
| Weight |
Approx. 30 kg |
| Protection class |
IP22 |
The Victron Quattro-II 48/5000/70-50/50 230V combines maximum performance with intelligent energy management and is the perfect solution for hybrid, off-grid, and professional energy systems.
