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Victron MultiPlus-II 12/4000/160-50, 120V

The Victron MultiPlus-II 12/4000/160-50 is an inverter/charger for 12 V battery systems. It puts out 3,400 W of clean AC power and charges the battery at up to 160 A. When shore or generator power runs short, PowerAssist adds battery power to help.
Nov 2026 Coupon: Victron & Webasto Parts
$ 1,105.00 $ 1,300.00

At a glance

Highlights

  • True sine wave inverter, battery charger and AC transfer switch in one unit
  • PowerAssist adds battery power when AC power is limited
  • Connects to a Cerbo GX for monitoring and control over VE.Bus
  • Can run in parallel or three-phase systems

Key specs

  • AC Input voltage range: 90 to 140 VAC
  • Maximum AC input current: 50 A
  • Peak power rating: 6,000 W
  • Maximum efficiency: 93 %
  • Operating temperature range (fan assisted cooling): -40 to 60 C
SpecificationValue
AC input frequency range55 to 65 Hz
AC Input voltage range90 to 140 VAC
General purpose communication portYes
Maximum humidity (non-condensing)95 %
Maximum efficiency93 %
Maximum AC input current50 A
Frequency +/-0.1% (selectable)60Hz
Fan assisted coolingYes
External AC Current Sensor100A (optional)
DC Input voltage range9.5 to 17 VDC
Continuous inverter AC output power at 65 C2,400 W
Continuous inverter AC output power at 40 C3,100 W
Continuous inverter AC output power at 25 C3,400 W
Programming via computer or appYes
Communication PortVE.Bus
Charge voltage storage (adjustable)13.2 VDC
Charge voltage float (adjustable)13.8 VDC
Charge voltage absorption (adjustable)14.4 VDC
Charge algorithmAdaptive, 4-stage
Nominal battery voltage12 V
Auxiliary AC outputYes
AC output voltage +/-2% (adjustable)120 VAC
AC output frequency +/-0.1% (adjustable)60 Hz
AC Input voltage range (cos(φ) >0.8)[-∞, +∞] VAC
Maximum charge current (up to 25 C ambient)160 A
Temperature SensorIncluded
Zero load power in search mode4 W
Zero load power in AES mode11 W
Zero Load Power18 W
Transfer switch AC current rating50 A
Three phase operationYes
Remote terminalOn / Off
ProtectionsOutput short-circuit,Overload,High battery voltage,Low battery voltage,Over temperature,AC voltage on inverter output,Excessive DC ripple
Programmable relayAC rating: 230V / 4A, DC rating: 4A up to 35VDC and 1A up to 60VDC
PowerControlYes
PowerAssistYes
Peak power rating6,000 W
Parallel operationYes
Operating temperature range (fan assisted cooling)-40 to 60 C
Number of AC Outputs2
Number of AC Inputs1
VE.bus communication portTwo RJ45 terminals
Remote terminal typeScrew terminal two pole
Relay terminal typeScrew terminal 3-pole
Battery connection terminal typeM8 bolts (two for positive and two for negative connection)
  • MultiPlus-II 12/4000/160-50
  • Temperature sensor

Battery cables, fuses and a GX device are sold separately.

Use thick battery cables and a fuse close to the battery. Set the AC input limit and charge settings with VictronConnect or VEConfigure.

We install Victron systems at our shops in Salt Lake City, Utah and Fort Collins, Colorado. See our installation page or send us an inquiry.

5 year warranty. Read Victron's warranty terms.

Ships in 1 to 5 business days.