Victron Energy Quattro-II 48/10000 Specifications & Review
The Victron Quattro-II 48/10000 is the high-power variant of Victron's inverter/charger platform, delivering 10 kW continuous with dual AC inputs for seamless switching between grid and generator. The dual-input design is unique — it automatically prioritizes between two AC sources (grid and generator, or two different utility feeds), making it ideal for locations with unreliable grid and backup generator integration. Like the MultiPlus-II, it requires separate MPPT charge controllers for solar. Up to 6 units can be paralleled for 60 kW, and split-phase configurations provide 120/240V for US residential standards.
What Makes the Victron Energy Quattro-II 48/10000 Different
The Victron Quattro-II takes the proven MultiPlus-II platform and adds a feature found in no other residential inverter: dual AC inputs. The Quattro-II can simultaneously connect to two AC sources — typically the utility grid and a backup generator — and automatically prioritize between them based on configurable rules. When the grid is available, it's the primary source; when the grid fails, the Quattro-II seamlessly switches to the generator (if running); when neither is available, it runs from batteries. This three-tier power management is essential for locations with unreliable grid and generator backup. At 10 kW continuous, the Quattro-II also delivers significantly more power than the MultiPlus-II 5000, making it suitable as a standalone unit for 120V systems or as one unit in a high-power parallel or split-phase configuration.
Key Specifications
| Brand | Victron Energy |
| Model | Victron Quattro-II 48/10000/140-100/100 |
| Type | Hybrid |
| Max AC Power | 10000W |
| Max DC Power | 14000W |
| Peak Efficiency | 96.5% |
| CEC Efficiency | 95.5% |
| DC Voltage Range | 38-66V |
| Max Input Voltage | 66V DC |
| Max Input Current | 140A |
| Output Voltage | 120/240V |
| MPPT Trackers | 0 |
| Monitoring | Victron VRM Portal (WiFi/Ethernet via GX device) |
| Communication | VE.Bus, VE.Direct, CAN, Bluetooth |
| Dimensions | 574 x 350 x 265 mm |
| Weight | 45 kg |
| IP Rating | IP21 |
| Operating Temperature | -20°C to 65°C |
| Warranty | 5 years |
| Certifications | UL 1741, UL 1741 SA, CSA C22.2, FCC Part 15 |
Pros & Cons
Pros
- ✓ 10 kW continuous — substantial standalone power output
- ✓ Dual AC inputs — seamless grid/generator switching unique to Quattro
- ✓ Paralleling up to 6 units for 60 kW — commercial-grade scalability
- ✓ 120/240V split-phase for full US residential compatibility
- ✓ Same Victron VRM ecosystem and battery compatibility as MultiPlus-II
- ✓ 140A charger — fastest battery recharging from AC source
Cons
- ✗ 45 kg — heavy, requires two-person installation
- ✗ No built-in MPPT — requires separate solar charge controllers
- ✗ 5-year warranty — short for the price point
- ✗ IP21 indoor-only — needs weather protection
- ✗ Complex multi-component system design
- ✗ Premium pricing for the Victron platform
Best For
Large off-grid homes and remote sites needing high-power inverter/charger with dual AC input for automatic grid/generator switching and massive parallel scalability.
Is the Victron Energy Quattro-II 48/10000 Worth It?
The Victron Energy Quattro-II 48/10000 delivers 10.0 kW of AC output with a peak efficiency of 96.5% and a CEC weighted efficiency of 95.5%. This places it slightly below the average for hybrid inverters (approximately 97%). While not the highest-efficiency option in its class, the difference of a fraction of a percent typically amounts to only a small reduction in annual energy yield for most residential systems.
The Quattro-II 48/10000 includes a below-average 5-year warranty. The industry standard for hybrid inverters is 12 to 15 years, so you may want to factor in potential replacement costs or check whether an extended warranty option is available from Victron Energy or your installer.
As a hybrid inverter, the Quattro-II 48/10000 combines solar conversion with battery management in a single unit. This means you can add battery storage without needing a separate battery inverter, reducing equipment costs and simplifying your installation. The Quattro-II 48/10000 enables backup power during grid outages and can optimize self-consumption by storing excess solar energy for evening use or time-of-use rate arbitrage.
Overall, the Victron Energy Quattro-II 48/10000 can be a reasonable choice depending on your priorities and budget. Weigh its 96.5% efficiency and 5-year warranty against competing models to determine if it delivers the best value for your specific installation needs.
Real-World Performance
The Quattro-II 10 kW delivers 95-96% inverter efficiency and handles the 140A charge current without derating in ambient temperatures up to 40°C. The dual AC input switching is seamless — under 20ms transfer time regardless of which source is switching. The 140A charger is the fastest in the residential inverter/charger class, charging a 20 kWh battery bank from 10% to 90% in approximately 3-4 hours from grid or generator. In split-phase configurations (two Quattro-II units for 120/240V at 20 kW), the system provides commercial-grade power output suitable for large homes and small businesses.
Who Should Buy the Victron Energy Quattro-II 48/10000?
System Design Tips
For US residential 120/240V split-phase: use two Quattro-II units at 20 kW total ($8,000-$12,000 for the pair), which is substantial overkill for most homes but provides massive headroom and the dual AC input feature. More commonly, a single Quattro-II provides 10 kW 120V for essential loads while the dual input handles grid/generator switching. The 140A charger requires a 30A+ generator or grid circuit for full-speed charging. Size generator at minimum 8 kW for efficient charging while powering loads. CAN battery communication via Cerbo GX is mandatory for proper operation. Budget for the full Victron ecosystem: Quattro-II + Cerbo GX + SmartSolar MPPT(s) + GX Touch display (optional but recommended).
Price Estimate
The Victron Quattro-II 48/10000 costs approximately $4,500-$5,500 per unit. A single-unit system with MPPT, Cerbo GX, and accessories: $5,500-$7,000 for Victron components. A dual-unit 120/240V split-phase system: $10,000-$12,500 for Victron components. Complete off-grid system with 15 kW solar and 20 kWh Pylontech batteries: $35,000-$48,000 installed. The dual AC input capability justifies the premium over the MultiPlus-II for installations where grid/generator switching is needed.
How the Victron Energy Quattro-II 48/10000 Compares
| Model | AC Power | Efficiency | MPPT | Warranty |
|---|---|---|---|---|
| Victron Energy Quattro-II 48/10000 (this inverter) | 10.0 kW | 96.5% | 0 | 5 yrs |
| Fronius Symo GEN24 10.0 Plus | 10.0 kW | 98.2% | 2 | 10 yrs |
| GoodWe GW10K-ET | 10.0 kW | 98% | 2 | 10 yrs |
| Growatt SPH 10000TL-HU | 10.0 kW | 97.5% | 3 | 10 yrs |
Compare This Inverter
Installation & Compatibility
DC Input Specifications
- DC Voltage Range
- 38-66V
- Max Input Voltage
- 66V DC
- Max Input Current
- 140A
- MPPT Trackers
- 0
- Max DC Input
- 14.0 kW
With 0 MPPT tracker, panels can be configured in a single optimized string. Always verify string sizing with your installer for your specific panel model and location.
System Sizing & Environment
- Max AC Output
- 10.0 kW
- Max DC Input
- 14.0 kW
- Recommended Panels (350-400W)
- 25-40 panels
- Output Voltage
- 120/240V
- IP Rating
- IP21
- Operating Temperature
- -20°C to 65°C
- Dimensions
- 574 x 350 x 265 mm
- Weight
- 45 kg (99.2 lbs)
Monitoring & Communication
- - Monitoring: Victron VRM Portal (WiFi/Ethernet via GX device)
- - Communication: VE.Bus, VE.Direct, CAN, Bluetooth
- - Certifications: UL 1741, UL 1741 SA, CSA C22.2, FCC Part 15
Frequently Asked Questions
What's the advantage of dual AC inputs vs a manual transfer switch?
The Quattro-II's dual AC inputs switch automatically and seamlessly (under 20ms) without any manual intervention, mechanical switches, or external controls. A manual transfer switch requires someone to physically switch inputs and doesn't provide seamless transitions. The Quattro-II can also accept power from both inputs simultaneously in some configurations, using both grid and generator to charge batteries faster during emergencies.
Can I use the Quattro-II as a simple inverter without the dual input feature?
Yes. You can use only one AC input and the Quattro-II functions identically to a 10 kW MultiPlus-II. This gives you the option to add a generator or second AC source later without changing inverters. Many buyers purchase the Quattro-II for the future-proofing even if they don't need dual inputs immediately.
How many Quattro-II units can be paralleled?
Up to 6 Quattro-II 10 kW units can be paralleled for 60 kW total output — suitable for large commercial installations. In a 3-phase configuration, 3 units provide 30 kW of three-phase power. These high-power configurations are typically for commercial or institutional installations, not residential.
What type of inverter is the Victron Energy Quattro-II 48/10000?
The Victron Energy Quattro-II 48/10000 is a hybrid rated at 10.0 kW AC output. Hybrid inverters can work with both solar panels and battery storage, enabling backup power during outages.
What is the CEC efficiency of the Victron Energy Quattro-II 48/10000?
The CEC weighted efficiency is 95.5%, with a peak efficiency of 96.5%. CEC efficiency is a more realistic measure of real-world performance than peak efficiency, as it accounts for varying power levels throughout the day.
How long is the warranty on the Victron Energy Quattro-II 48/10000?
The Victron Energy Quattro-II 48/10000 comes with a 5-year manufacturer warranty. Extended warranty options may be available through your installer.
Is the Victron Energy Quattro-II 48/10000 compatible with battery storage?
Yes, the Victron Energy Quattro-II 48/10000 is a hybrid inverter with built-in battery management. It can connect directly to compatible battery systems, enabling solar self-consumption, time-of-use optimization, and backup power during grid outages without requiring a separate battery inverter.
How many panels can the Victron Energy Quattro-II 48/10000 support?
With a maximum DC input of 14.0 kW, the Victron Energy Quattro-II 48/10000 can support approximately 25 to 40 standard residential solar panels (350-400W each) across 0 MPPT tracker. Actual panel count depends on individual panel wattage, string sizing, and local electrical code requirements. Always consult your installer for precise string calculations.
Does the Victron Energy Quattro-II 48/10000 have rapid shutdown?
The Victron Energy Quattro-II 48/10000 supports rapid shutdown in compliance with NEC 2017/2020 requirements. As a hybrid inverter, rapid shutdown compliance may require additional module-level devices depending on your jurisdiction and system configuration. Check with your installer to confirm the specific rapid shutdown solution needed for your installation.
Is the Victron Energy Quattro-II 48/10000 suitable for my system size?
The Victron Energy Quattro-II 48/10000 is rated at 10.0 kW AC output, making it suitable for standard residential systems. The maximum DC input of 14.0 kW allows for typical DC/AC oversizing ratios of 1.1 to 1.3x, accommodating solar arrays of approximately 11.9 kW to 14.0 kW.
What monitoring options does the Victron Energy Quattro-II 48/10000 offer?
The Victron Energy Quattro-II 48/10000 includes Victron VRM Portal (WiFi/Ethernet via GX device) monitoring capabilities via VE.Bus, VE.Direct, CAN, Bluetooth communication. You can track system-level production, consumption patterns, and historical performance data. Most monitoring platforms offer web dashboards and mobile apps for real-time and historical data access. Check with Victron Energy for specific app availability and any subscription requirements for advanced features.
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Last updated: February 2026