INVERTER/CHARGER · 12 V BATTERY · 120 V AC
This MultiPlus-II combines an inverter, battery charger and automatic transfer switch for a 12 V battery bank and a 120 V AC system. Ask PLC Marine to review your vessel's selection, including loads, generator, shore connection and monitoring accessories.
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| Model on this page | MultiPlus-II 12/4k/160-50 120V |
|---|---|
| Part number | PMP122405110 · 12/4k/160-50 model |
| Battery input | 12 V nominal · 9.5–17 V DC range |
| Output in inverter mode | 120 V AC ±2% |
| Continuous power | 3.4 kW at 25 °C · 3.1 kW at 40 °C · 2.4 kW at 65 °C |
| Time-limited power | 4.0 kW for 1 h; 4.5 kW for 30 min · cold start |
| Peak power | 6 kW for 2 s |
| AC input | Single phase · 90–140 V AC |
| Transfer / maximum input | 50 A AC / 50 A AC |
| Maximum battery charging | 160 A DC at ambient temperature up to 25 °C |
| Enclosure protection | IP21 |
| Communication | VE.Bus; Bluetooth through optional accessory |
Reference data for the 12/4k/160-50 120 V model. Public documentation differs by revision; confirm frequency, dimensions and the supplied nameplate when quoting. These are not ratings for the 12/4k/180-50, 230 V or MultiPlus-II 2x120V variants.
PowerControl manages demand from a limited AC source by reducing battery charging when appropriate. PowerAssist can temporarily supplement generator or shore power with energy from the battery. Results depend on the bank, its discharge capability and system configuration.
Do not interpret the 4k model designation as 4 kW continuous: Victron specifies 3.4 kW at 25 °C. W expresses active power and VA apparent power; they are not interchangeable ratings. Send each device's watts or VA, starting surges and simultaneous loads so sizing can be reviewed.
Battery chemistry, BMS and charging limits must match the configuration. The IP21 unit requires a dry, ventilated space and professional installation. Bluetooth uses an additional VE.Bus Smart dongle; internet monitoring requires a GX device and connectivity. Include these components in your inquiry if needed.
The unit described produces 120 V AC in inverter mode. It is neither a 230 V unit nor the 2x120V variant. If your vessel has 220/240 V loads or multiple phases, send the electrical diagram so a suitable architecture can be selected.
No. It is the maximum DC battery charge current under the stated conditions. AC transfer and maximum AC input are 50 A; they refer to different functions and circuits.
This MultiPlus-II uses VE.Bus. Bluetooth connection to VictronConnect requires an optional VE.Bus Smart dongle. The accessory supports monitoring and controls such as operating mode and input limit; it is not a full configuration interface.
AC-out-1 remains powered in inverter mode. Auxiliary AC-out-2 disconnects when no external AC source is present, allowing it to serve loads intended to run only on shore or generator power.
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