Victron Quattro-II 48/5000/70-50/50 230V - QUA482504010

Overview

The Victron Quattro-II is a premium inverter/charger designed for advanced backup power and off-grid applications. Like Victron’s inverter/charger platforms, it combines a high-quality true sine wave inverter with adaptive battery charging in a single unit—while adding the major advantage of two AC inputs with automatic selection of the active source.

With PowerAssist support, scalable system operation (parallel, split-phase, and three-phase), and deep system integration via Victron’s ecosystem, the Quattro-II is well suited to installations that require flexible AC source management—such as grid + generator setups, essential-load backup, and larger multi-unit power systems.

Key Features

Dual AC Input Flexibility

• Accepts two separate AC inputs (e.g., grid and generator)
• Automatically connects to the active/available AC source
• Ideal for installations requiring seamless source selection

True Sine Wave Inverter Performance

• High-quality true sine wave output for sensitive loads
• Inverter and charger combined in a single enclosure
• Designed for demanding backup and off-grid applications

Adaptive Battery Charging

• Adaptive charging algorithm to suit varying battery conditions and usage
• Multi-stage charging for improved long-term battery performance
• Suitable for a wide range of compatible battery systems (per design requirements)

Hybrid PowerAssist Support

• Helps prevent overload of limited AC sources by supplementing with battery power
• Supports more reliable operation on generators or restricted supply connections

Scalable System Integration

• Parallel operation capability for increased inverter power
• Supports split-phase and three-phase system configurations
• Designed for integration into larger Victron energy systems