Description
Victron MultiPlus-II 48/5000/70-50 230 V
A rock-solid inverter/charger for serious off-grid, hybrid, and backup systems. The MultiPlus-II 48/5000 delivers 5000 VA of clean 230 V AC, a powerful 70 A battery charger, and a fast 50 A transfer switch—all in one compact, wall-mount unit trusted by installers and prosumers alike.
Why people choose the MultiPlus-II
Uninterruptible power: 20 ms transfer keeps sensitive loads (computers, networking, fridges) running during outages.
PowerAssist™ boost: Temporarily adds inverter power to a weak grid or small generator to handle start-up surges.
Hybrid flexibility (ESS-ready): Works with Victron Energy Storage System for self-consumption, peak-shaving, backup, and time-of-use strategies.
Scalable: Parallel up to 6 units and/or configure 3-phase systems as your needs grow.
Proven reliability: Victron’s high surge capability and conservative thermal design for Australian heat and heavy loads.
Smart monitoring: Pair with Cerbo GX (or other GX devices) for full control via the Victron VRM Portal—local or remote.
Key features
Inverter: 5000 VA pure sine output (48 V system), high surge for motors and compressors.
Charger: 70 A multi-stage charging with temperature compensation for long battery life (LiFePO₄, lead-acid, AGM/GEL compatible).
Transfer switch: Built-in 50 A automatic transfer between grid/generator and inverter.
Grid support: Configurable limits, export control (with GX/meters), and generator assist.
Install-friendly: Neutral-earth bonding relay, built-in protection features, DIN-rail I/O via GX ecosystem.
Comms & integration: VE.Bus for configuration and stacking; integrates cleanly with Cerbo GX, smart shunts, PV inverters, and metering.
Typical applications
Whole-home backup with solar + battery.
Off-grid cabins, sheds, and remote sites needing high surge and dependable AC.
Small commercial loads where uptime and power quality matter.
Mobile & marine systems that require a tough, efficient inverter/charger.
At-a-glance specs
DC system: 48 V nominal
Inverter rating: 5000 VA (continuous real-world ~4 kW), high surge for starting inductive loads
Charger: 70 A multi-stage
AC transfer: 50 A automatic (grid/generator ↔ inverter)
Waveform: Pure sine, low THD
Form factor: Wall-mount, ventilated enclosure
Expandability: Parallel & 3-phase capable (up to 6 units)
Monitoring: Works with GX devices for VRM Portal access
What you’ll need (commonly paired)
Cerbo GX (or other GX) for control/monitoring and ESS functions
SmartShunt or BMV for accurate SOC
AC/DC protection: Appropriate breakers/RCDs, fusing, isolators
Battery bank: LiFePO₄ or lead-acid, sized to your load profile
PV: DC-coupled MPPTs or AC-coupled PV inverter (ESS)
Installation note: Must be installed and configured by a qualified electrician/installer. Final performance depends on system design, wiring, protection, and local regulations.
