The Flagship All-in-One Solar Power Solution

The TBB RiiO Sun II is a next-generation, transformer-based all-in-one solar inverter, meticulously engineered to deliver ultimate performance, flexibility, and reliability. Whether you’re building a residential, commercial, off-grid, or energy storage system (ESS), the RiiO Sun II combines multiple components into a compact powerhouse that redefines solar energy management.

This advanced inverter is the heart of TBB’s energy ecosystem, supporting self-consumption, generator hybridization, grid-limited locations, and standalone off-grid living—all with scalable power and intelligent automation.

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🔧 Key Features of the TBB RiiO Sun II

🧩 4-in-1 Integrated System

No more cluttered systems or complicated setups—the RiiO Sun II integrates:

• Pure Sine Wave Inverter

• MPPT Solar Charge Controller (with dual MPPT on 5kVA+)

• Smart Battery Charger

• Ultra-Fast Automatic Transfer Switch (4ms)

⚡ Power Range & Models

• Available in: 2kVA, 3kVA, 4kVA, 5kVA, 6kVA, and 8kVA models

• Transformer-based design handles large motor start-up surges

• Up to 95% inverter efficiency

• MPPT efficiency as high as 98%, with dual trackers on larger models

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🧠 Intelligent Energy Management

🔋 Battery Optional Operation

• Works with or without batteries

• Enables direct solar-to-load operation

• Ideal for hybrid setups where full battery investment isn’t required immediately

🔌 Smart Load & Power Management

• Self-Consumption Mode: Automatically uses excess solar to power AC loads

• Power Assist Mode: Supplements limited grid/generator input using battery

• ECO Mode: Prioritizes critical loads and stretches battery runtime

• Peak Shaving: Handles high-load demand using battery for short bursts

• Programmable Output Modes: Custom-tailor output behavior based on your needs

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🌞 Solar Capabilities & PV Support

MPPT Solar Controller

• Dual MPPT (on 5kVA, 6kVA, 8kVA) for separate roof angles

• Max PV Open Circuit Voltage:

  • 150V (2kVA, 3kVA-M models)

  • 250V (3kVA-S, 4kVA-S, 5kVA-S, 6kVA-S, 8kVA-S)

• MPPT Voltage Range:

  • 40–145V (24V systems)

  • 65–245V (48V systems)

• Max PV Input Power:

  • Up to 3600W for single MPPT

  • Up to 8800W on dual MPPT models

• Tracking Efficiency: >99.5%

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📡 Smart User Interface & Remote Connectivity

NOVA App + Web Portal

• Free iOS/Android & browser-based interface

• Real-time remote monitoring of solar, battery, and load data

• Detailed data analytics: energy production, battery use, and grid import/export

• Custom system parameters: directly editable from app or PC

• Alerts & Notifications: Stay on top of performance and issues

Interface Options

• Smart Port (5kVA+ models): Configurable for generator input or dedicated load

• LCD Display: Real-time system overview

• LED Indicators: Quick status check

• Compatible with RiiO Mate and E4 LCD for local system control

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🛡️ Safety, Protection & Build Quality

Built to Withstand Real-World Conditions

• Operating Temp: -20°C to 65°C

• Humidity Tolerance: Up to 95% non-condensing

• Altitude Capability: Operable up to 2000m

• Enclosure Rating: IP21 (indoor use)

Electrical Protections

• Short circuit

• Overload

• Over-temperature

• Over/under battery voltage

• Input voltage fluctuation

• Reverse polarity

Transfer Time

• <4ms for critical loads

• <15ms when operating under weak AC source (e.g., generator)

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📏 Technical Specifications (By Model)

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📦 Dimensions & Weight

• Cooling Method: Intelligent forced-air cooling

• Protection Index: IP21 indoor-rated enclosure

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🔄 Expandability & Ecosystem Compatibility

Seamless Integration with TBB Components

• ES100 II Lithium Battery: Optimal pairing for long-lasting storage

• Kinergy II Wi-Fi Dongle: Plug-and-play wireless connectivity

• E4 LCD Monitor: Wall-mount display for real-time system stats

• RiiO Mate: Enables parallel/three-phase communication & battery BMS integration

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🏡 Recommended Applications

Residential Solar Systems

• 2kVA–8kVA range perfectly suits homes of any size

• Backup essential loads during outages

• Save on electricity with self-consumption mode

• Future-proof your system with scalable expansion

Commercial Energy Systems

• Up to 72kVA when configured in 3-phase or parallel

• Intelligent solar offsetting of grid use

• Peak shaving and backup for business-critical loads

• Compatible with local utility integration strategies

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🌐 Remote Monitoring with NOVA Platform

Manage your system anywhere, anytime:

• Real-time energy flow overview

• PV and battery performance graphs

• Load profiles and history

• Remote parameter configuration

• Event logs, alerts & email notifications

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🛠️ Warranty & Global Support

Every TBB RiiO Sun II inverter is backed by TBB’s global support infrastructure and industry-leading warranty, ensuring peace of mind for years of continuous operation.