Victron Energy Non-UL Listed MultiPlus-II Inverter/ Chargers - 2x120V (3000VA)

The MultiPlus-II 2 x120V is the perfect one-box mobile solution for standard North American 50A 120/240VAC split-phase applications. Whether it is supplied from shore power or a generator, the MultiPlus-II 2x120V can accept and passthrough both lines of a 120/240V supply, with the capability to utilize the full 50A for charging and AC loads. When connecting to a single phase 120V supply, the L1 input of the MultiPlus-II 2x120V will accept incoming power for charging and passthrough, while combining the L1 and L2 outputs for single-phase 120V on each line. The MultiPlus switches to inverter operation when no AC source is available. The inverter output is also 120V single phase. In inverter mode, the MultiPlus-II 2x120V internally connects both lines L1 and L2 together to provide 120VAC to loads on either output. Therefore, in all connection circumstances, both sides of a distribution panel will be supplied with 120V. However, 240VAC is only available when the MultiPlus is supplied by a split phase 120/240VAC source. This prevents heavy loads such as water heaters or 240V air conditioners from discharging the battery. The MultiPlus-II 2x 120V has all of the expected features of our versatile inverter/charger range, including PowerControl, PowerAssist, Input Current Limit, two AC outputs, as well as parallel and 3ph configuration for larger capacity VE.Bus systems. Suitable for LiFePO4 batteries and a variety of other battery technologies.

Power Control & Power Assist- Yes (On L1 input)

Transfer Switch- 50A

Maximum AC Input Current- 50A Each Leg


DC Input Voltage Range- 

  • 12/3000/120-50 2x120V= 9.5V - 17V
  • 24/3000/70-50 2x120V= 19V - 33V

Output Voltage- 120VAC ± 2%

Output Frequency- 60Hz ± 0.1% (1)

Cont. Output Power at 25°C³- 3000VA

Cont. Output Power at 25°C- 2400W

Cont. Output Power at 40°C- 2200W

Cont. Output Power at 65°C- 1700W

Maximum Apparent Feed-In Power- 2500VA

Peak Power- 5500W

Maximum Efficiency-

  • 12/3000/120-50 2x120V= 93%
  • 24/3000/70-50 2x120V= 94%

Zero Load Power-

  • 12/3000/120-50 2x120V= 15W
  • 24/3000/70-50 2x120V= 11W

Zero Load Power In AES Mode- 

  • 12/3000/120-50 2x120V= 10W
  • 24/3000/70-50 2x120V= 8W

Zero Load Power In Search Mode- 4W


AC Input Split Phase- 180 - 280VAC 45-65 Hz

AC Input Single Phase- 90-140VAC 45-65Hz

Charge Voltage 'Absorption'-

  • 12/3000/120-50 2x120V= 14.4V
  • 24/3000/70-50 2x120V= 28.8V

Charge Voltage 'Float'-

  • 12/3000/120-50 2x120V= 13.8V
  • 24/3000/70-50 2x120V= 27.6V

Storage Mode-

  • 12/3000/120-50 2x120V= 13.2V
  • 24/3000/70-50 2x120V= 26.4V

Maximum Battery Charge Current-

  • 12/3000/120-50 2x120V= 120A
  • 24/3000/70-50 2x120V= 70A

Battery Temperature Sensor- Yes


Auxiliary Output- 50A (Each leg) See Note 8

External AC Current Sensor (Optional)- 100A

Programmable Relay- Yes

Protection- a - g

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

General Purpose Com. Port- Yes, 2x

Remote On/Off- Yes

Operating Temperature- -40°F - 150°F (Fan assisted cooling)

Humidity (Non-Condensing)- Max 95%


Material & Color- Steel, Blue RAL 5012

Protection Category- IP22


  • 12/3000/120-50 2x120V= 2x2 M8 Bolt
  • 24/3000/70-50 2x120V= 2 M8 Bolts

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

Weight- 48lb

Dimensions (HxWxD)- 23" x 11" x 6"


Safety- EN-IEC 60335-1, EN-IEC 60335-2-29, UL 458

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

1) Can be adjusted to 50Hz

2) Protection Key:

A) Output short circuit

B) Overload

C) Battery voltage to high

D) Battery voltage to low

E) Temperature to high

F) 120 VAC on inverter output

G) Input voltage ripple to high

3) Non-linear load, crest factor 3:1

4) Up to 70°F ambient

5) Switches off when no external AC source available 

6) Programmable relay that can a.o. be set for general alarm, DC under voltage or genset start/stop function

AC Rating- 120V / 4A

DC Rating- 4A up to 35VDC, 1A up to 60 VDC

7) A.o. to communicate with a Lithium-Ion battery BMS

8) The auxiliary output of an early production batch of this product was rated at 35A instead of 50A. This batch has serial numbers starting with HQ2170. Later batches, with 50A aux. out put have serial numbers starting with HQ2114 or higher.