Description
The Victron MultiPlus-II 12/4k/160-32 is the most powerful 12V model in the MultiPlus-II range: a pure sine wave inverter, a 160A adaptive battery charger and a 32A automatic transfer switch in one compact unit. It's a strong fit for campervans, motorhomes, boats and off-grid cabins built around a 12V battery bank that need serious AC power and fast charging from shore or generator.
Key features
- 4kW for an hour: 3.4kW continuous at 25°C, 4kW for 1 hour from cold, and 6kW peak to start demanding loads.
- 160A charger: refills large lithium or lead-acid banks quickly, with a smart adaptive multi-stage algorithm.
- Uninterrupted power (UPS): switches to inverter within milliseconds if shore power or the generator drops out.
- PowerControl and PowerAssist: set your shore or generator limit and the MultiPlus-II cuts back charging to avoid tripping it, then supplements the supply from the battery during peak loads.
- Two AC outputs: the second output only runs when AC input is present, keeping heavy non-essential loads off the battery.
- Scalable: up to six units in parallel, or three-phase configurations.
- Monitoring: connect a GX device such as the Cerbo GX for local and remote monitoring through the free VRM portal and app.
Specifications
| Part number | PMP122405010 |
| Nominal battery voltage | 12V (DC input range 9.5–17V) |
| AC output | 230VAC ±2%, 50Hz |
| Continuous output power | 3,400W at 25°C / 3,100W at 40°C / 2,600W at 65°C |
| Time-limited power | 4kW for 1 hour (cold start) |
| Peak power | 6,000W |
| Maximum efficiency | 93% |
| Max. battery charge current | 160A |
| Charge voltage | Absorption 14.4V / Float 13.8V |
| Transfer switch / max AC input | 32A |
| AC input range | 187–265VAC, 45–65Hz |
| Zero-load power | 18W (11W AES mode, 4W search mode) |
| Communication | VE.Bus (2 x RJ45) |
| Dimensions (H x W x D) | 595 x 275 x 160 mm |
| Weight | 23 kg |
Need help designing a system? Euromotive Energy is a Victron distributor in Ireland and can advise on batteries, solar, DC-DC charging and installation.