Victron Energy Quattro-II

Similar to the MultiPlus-II 2x120V, the Quattro-II 2x120V is a combined inverter and charger specifically designed for standard North American 50A 120/240VAC split-phase applications. Additionally, it can accept two AC inputs and automatically connects to the active source.

PowerControl & PowerAssist- Yes (on L1 Input)

Transfer Switch- 50A

Maximum AC Input Current- 50A (Each Leg)


DC Input Voltage Range- 19V - 33V

Output When In Inverter Mode- 

  • Output Voltage- 120VAC ± 2%
  • Frequency- 60Hz ± 0.1% (1)

Continuous Output Power @ 25°C (3)- 3000VA

Continuous Output Power @ 25°C- 2400W

Continuous Output Power @ 40°C- 2200W

Continuous Output Power @ 65°C- 1700W

Maximum Apparent Feed-In Power- 2500VA

Maximum Efficiency- 94%

Zero Load Power- 11W

Zero Load Power In AES Mode- 8W

Zero Load Power In Search Mode- 4W

Maximum Output Current- 60A peak, 50Arms for 1 second


AC Input-

  • Split Phase- 180-280VAC 45 - 65Hz
  • Single Phase- 90 - 140VAC 45 - 65Hz

Charge Voltage Absorption- 28.8V

Charge Voltage Float- 27.6V

Storage Mode- 26.4V

Maximum Battery Charge Current (4)- 70A

Battery Temperature Sensor- Yes


Auxiliary Output- Yes 50A

Programmable Relay- Yes

Protection- a - g

VE.Bus Communication Port- For parallel and three phase operation, remote monitoring and system integration

General Purpose Communication Port- Yes, 2x

Remote On/Off- Yes

Operating Temperature Range- -40°F - 150°F

Humidity (Non-Condensing)- Max 95%


Material & Color- Steel, Blue RAL 5012

Protection Category- IP22

Battery-Connection- 2 M8 Bolts

120/240V AC-Connection- Screw Terminals 21mm² (4AWG)

Weight- 50lbs

Dimensions- 23" x 13" x 7"


Safety- EN-IEC 60335-1, EN-IEC 60335-2-29

Emission, Immunity- EN 55014-1, EN55014-2, EN-IEC 61000-3-2, EN-IEC 61000-3-3, IEC 61000-6-1, IEC 61000-6-2, IEC 61000-6-3