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Victron Quattro-II 2x 120V Inverter/Charger

Victron Quattro-II 2x 120V Inverter/Charger

BY: Victron Energy | SKU: QUA122305130 Availability: In Stock
$1,539.00

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Victron Quattro-II 2x 120V Inverter/Charger

The Victron Quattro-II 2x120V is a versatile, heavy-duty combined inverter and charger designed for North American split-phase 120/240V applications. It can accept two AC inputs (such as shore power and a generator) and automatically connects to the active source. The Quattro-II provides seamless power backup, easily switching to inverter mode when AC sources are unavailable and delivering reliable 120V single-phase output on both lines.

Whether it’s used for residential backup, marine applications, or off-grid power, the Quattro-II 2x120V provides PowerAssist to boost limited generator or shore power capacity, PowerControl for input current management, and parallel/three-phase capability for larger systems. Built to work with LiFePO₄ and other battery chemistries, it’s engineered for safe and efficient energy conversion.

Victron Quattro-II 2x 120V Features

Dual AC Input & Automatic Transfer - Automatically switches between shore power and generator input, ensuring uninterrupted energy supply without manual intervention.

Split-Phase 120/240V Compatibility - Supports North American split-phase applications with 120V on both legs or full 120/240V passthrough when available.

PowerAssist Technology - Boosts generator or shore power by combining it with inverter output when demand temporarily exceeds available AC capacity.

High Efficiency & Reliable Performance - Delivers up to 94% efficiency with low idle consumption, plus seamless transition to inverter power when AC input fails.

Flexible System Integration - Works in parallel or three-phase configurations for larger power needs; integrates with VE.Bus for advanced monitoring and control.

Robust Protection & Smart Monitoring - Built-in safety protections against overload, temperature, and battery issues; remote monitoring options via Victron tools.

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Victron Quattro-II 2x 120V Applications

  • Off-Grid Homes – Reliable whole-house backup power
  • Marine Systems – Ideal for yachts, boats, and shore power systems
  • RV & Mobile Applications – Power demanding appliances on the road
  • Commercial Backup – Protects sensitive equipment and keeps operations running
  • Renewable Energy Systems – Integrates easily with solar and hybrid setups
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What's Included

Everything you need is included with your product.

  • Victron Quattro-II 2x 120V Inverter/Charger
  • User Manual

Warranty

  • 5-Year Limited Warranty – Backed by Victron Energy for reliable long-term use.

Victron Quattro-II 2x 120V Inverter/Charger Specifications

Category Specifications
PowerControl & PowerAssist Yes (on L1 input)
Transfer switch 50 A
Maximum AC input current 50 A (each leg)

Inverter

Category Specifications
DC Input voltage range 9.5 – 17 V
Output when in inverter mode Output voltage: 120 Vac ± 2 % | Frequency: 60 Hz ± 0.1 % (1)
Cont. output power at 25 °C (3) 3000 VA
Cont. output power at 25 °C 2400 W
Cont. output power at 40 °C 2200 W
Cont. output power at 65 °C 1700 W
Maximum apparent feed-in power 2500 VA
Peak power 5500 W
Maximum efficiency 93 %
Zero load power 15W
Zero load power in AES mode 10W
Zero load power in Search mode 4W

Charger

Category Specifications
AC Input Split-phase: 180-280 Vac 45 – 65Hz | Single-phase: 90-140 Vac 45 – 65Hz
Charge voltage 'absorption' 14.4 V
Charge voltage 'float' 13.8 V
Storage mode 13.2 V
Maximum battery charge current (4) 120 A
Battery temperature sensor Yes

General

Category Specifications
Auxiliary output (5) 50 A (each leg)
External AC current sensor (optional) 100 A
Programmable relay (6) Yes
Protection (2) a – g
VE.Bus communication port For parallel and three-phase operation, remote monitoring and system integration
General purpose com. port (7) Yes, 2x
Remote on-off Yes
Operating temperature range -40 to +65 °C (-40 -150 °F) Fan assisted cooling
Humidity (non-condensing) max 95 %

Enclosure

Category Specifications
Material & Colour Steel, blue RAL 5012
Protection category IP22
Battery-connection 2x2 M8 bolts
120/240 VAC-connection Screw terminals 21 mm² (4 AWG)
Weight 32.8 kg (52 lb)
Dimensions (hxwxd) 579 x 319 x 168 mm (23 x 13 x 7 inch)

Standards

Category Specifications
Safety EN-IEC 60335-1, EN-IEC 60335-2-29
Emission, Immunity EN 55014-1, EN 55014-2 | EN-IEC 61000-3-2, EN-IEC 61000-3-3 | IEC 61000-6-1, IEC 61000-6-2, IEC 61000-6-3

Frequently-Asked Questions

Does the Quattro-II 2x120V work with both 120V and 240V power?

Yes. It can pass through and supply full 120/240V split-phase power when available. If only 120V is present, it will combine L1 and L2 to provide 120V on both outputs.

What happens if grid or generator power goes out?

The Quattro-II automatically switches to inverter mode with no interruption, keeping your connected appliances powered.

Can I use the Quattro-II with lithium batteries?

Yes. It’s compatible with LiFePO₄ and other common battery types. Just configure the correct charge settings for your battery.

Can I expand power capacity?

Yes. Up to six Quattro-II units can be connected in parallel or three-phase for higher output.

How can I monitor and control the inverter?

You can use the VictronConnect app, VE.Bus system, or integrate with Victron GX devices like the Cerbo GX for remote monitoring and management.