What Is the Victron MultiPlus-II 5kVA?
The Victron Energy MultiPlus-II 48/5000/70-50 is a 5kVA (4,000W) inverter/charger combining a true sine-wave inverter, advanced battery charger, and AC transfer switch in one compact unit. It’s the flagship product in Victron’s residential range — the benchmark against which all other hybrid inverters in SA are measured.
| Specification | Value |
|---|---|
| Continuous AC Output Power | 4,000W (5kVA) |
| Peak Power (short duration) | 10,000W |
| Built-in Battery Charger | 70A |
| AC Input Current Limit | 50A |
| DC Bus Voltage | 48V |
| Output Waveform | Pure sine wave |
| Transfer Time | <20ms |
| Warranty | 5 years |
PowerAssist — Grid Boosting Technology
PowerAssist allows the MultiPlus-II to supplement a limited grid or generator connection. If your grid supply is only 20A but your loads require 40A, PowerAssist draws the difference from your battery bank — preventing tripped breakers while maximising your available power. Critical for homes on weak grid connections or those using a small generator as backup.
ESS Grid Integration
When paired with a Victron Cerbo GX, the MultiPlus-II becomes a full Energy Storage System (ESS) — intelligently trading energy between solar, battery, and grid based on time-of-use tariffs and load-shedding schedules. VRM (Victron Remote Monitoring) provides real-time dashboards accessible from any device worldwide.
Why Professionals Choose Victron
Victron inverters are specified by professional solar installers and electricians for one reason: they work, without exception, for years. The brand’s global reputation, extensive firmware support, and active SA dealer network mean you’ll never be without help. Parts, replacement units, and technical support are all available in South Africa.





Tebogo Mahlangu –
The Victron MultiPlus-II 5kVA Hybrid Inverter/Charger has been running our home without interruption since installation. Load shedding is now completely irrelevant to us. The system handles everything from the fridge to the TV and aircon without any drop in performance. Delivery from PowerVault was quick and the packaging was solid.
Refilwe Lekota –
Installed the Victron MultiPlus-II 5kVA Hybrid Inverter/Charger about three months ago and I cannot believe the difference. Our electricity costs have dropped significantly and we no longer stress about outages. The unit is whisper quiet and the monitoring app works perfectly. Very happy with PowerVault.