Description
MultiPlus-II 48/5000/70-50 230V GX — Inverter/Charger with Built-in Smart Monitoring
A powerhouse for serious off-grid, hybrid and backup systems. The MultiPlus-II GX combines Victron’s proven 5 kVA pure-sine inverter/charger with an integrated GX device (Venus OS), so you get advanced control, data logging and remote management without needing a separate Cerbo GX.
Why installers and power users choose it
All-in-one, done right: 5 kVA inverter + 70 A charger + 50 A transfer switch + built-in GX.
UPS-grade continuity: Sub-20 ms transfer keeps sensitive loads (IT/AV, fridges, pumps) online.
PowerAssist™ boost: Supplements weak grid or generator to handle start-up surges.
Two AC outputs: Prioritise essentials; shed non-critical loads automatically.
Smart energy system ready: Works with PV inverters and Victron MPPTs for self-consumption and backup (ESS).
Remote everything: VRM Portal access out of the box—live data, alerts, firmware updates.
Open, modular ecosystem: VE.Bus, VE.Direct, VE.Can, USB/Ethernet enable flexible system growth.
Key features
5 kVA / 48 V pure sine wave inverter (high surge capability for motors & compressors)
70 A adaptive battery charger with selectable profiles (LiFePO4, AGM, GEL, custom)
50 A automatic transfer switch (-50 variant)
Integrated GX computer (Venus OS) for:
Live dashboards (local & remote)
Data logging to SD/VRM
Generator auto-start logic
DVCC battery management (with compatible BMS)
VictronConnect app via Bluetooth (through attached Victron devices) and full VRM cloud control
Programmable relays & digital inputs for automation (genset, contactors, load control)
Parallel & three-phase capable (with additional units)
Ideal for
Whole-home backup with essential/non-essential circuits
Off-grid cabins, sheds & small businesses
Hybrid self-consumption with PV inverter or Victron MPPTs
Mobile & marine power where reliability matters
What’s in the box
MultiPlus-II 48/5000/70-50 230V GX unit
DC and AC terminal hardware
Quick start & safety documentation
Technical highlights (at a glance)
Battery voltage: 48 V nominal
Inverter rating: 5000 VA (approx. 4000 W continuous)
Charger current: up to 70 A @ 48 V
AC input/output: 230 V, 50 Hz
Transfer switch: 50 A (-50 model)
Interfaces: VE.Bus, VE.Can, VE.Direct (x2), USB, Ethernet (GX)
Monitoring: Built-in GX (Venus OS), VRM cloud, VictronConnect
Protection: Overload, over-temp, short-circuit, low/high battery, programmable alarms
Warranty: 5 years (Victron standard)
Installer notes
Configure with VEConfigure/GX for ESS/off-grid modes, grid codes and charge profiles.
Supports parallel and 3-phase systems—use matched units and follow Victron wiring guidelines.
For lithium systems, enable DVCC and use a compatible BMS for precise charge control.
Bring your system online in minutes, then fine-tune from anywhere. The MultiPlus-II GX is the cleanest path to a professional-grade energy system with best-in-class reliability and control.
