The RiiO Sun II is a versatile transformer-based all-in-one solar inverter, expertly designed for backup power, off-grid, and energy storage system (ESS) applications. This compact unit integrates a pure sine wave inverter, battery charger, MPPT solar charge controller, and a rapid 4ms automatic transfer switch, ensuring continuous operation for critical loads during outages while handling high surge loads with ease.

Key Functions:

1. Comprehensive all-in-one design: The RiiO Sun II combines multiple functionalities into one compact casing, including a pure sine wave inverter, advanced dual MPPT solar charge controller, and an efficient battery charger. This design simplifies installation and optimizes performance in various applications.

2. High surge capacity: Engineered to handle significant surge loads, the RiiO Sun II guarantees uninterrupted operation of essential appliances during power outages, providing peace of mind for off-grid living or backup scenarios. With a swift 4ms transfer time, it quickly switches to battery power during outages, ensuring your critical appliances remain operational.

3. Enhanced flexibility: The RiiO Sun II can be configured in parallel with up to 3 units in singles phase applications, or up to 9 units in three-phase applications, achieving a maximum output of 72KVA. It features a built-in smart port for generator input or a second AC output, which enhances system versatility.

4. Dual MPPT technology: Equipped with two MPPT trackers, the inverter supports flexible system design, allowing for efficient energy harvesting from multiple solar arrays. With a maximum PV open circuit voltage of up to 250V, it optimizes energy yields, ensuring reliable and consistent performance for various installation scenarios.

5. ESS and grid-tie capabilities: The RiiO II inverter seamlessly integrates with the E4 LCD Monitor and IC-METER, unlocking advanced Energy Storage System (ESS) and grid-tie functionalities. This allows for maximising self-consumption which helps lower electricity bills through advanced peak shaving and time-of-use management. Additionally, it enables grid feed-in for utility credits, providing economic advantages for users.

6. 50A transfer switch: The AC transfer switch inside the RiiO Sun-II is rated up to 50A, allowing for up to 11.5kW of power to be passed through to the loads from the AC input when the inverter is in bypass.

Additional Intelligent Features:

• AGS functionality: The Automatic Generator Start (AGS) function ensures efficient operation by activating the generator only when necessary, optimizing energy use.
• User-friendly monitoring: Users can easily monitor performance through the Nova Web and mobile app via the TBB-KN2 Kinergy-II Wi-Fi module, this allows for control and adjustments from anywhere.
• Reliable operation: The inverter features a 4ms ultra-fast switch to battery power, ensuring swift response during power interruptions. Additionally, it operates with an ECO Mode to prolong backup time while maintaining extremely low self-consumption.
• Superior efficiency: With a maximum inverter efficiency of 95% and a maximum MPPT efficiency of 98%, the RiiO Sun II delivers optimal performance, maximizing energy capture and utilization.
• Easy operation & maintenance: The all-in-one design facilitates straightforward installation and maintenance, ensuring hassle-free operation. The inverter automatically restarts when the PV or AC power is restored, guaranteeing continuous availability.

Compatibility:

This solar inverter is compatible with a range of lead-acid and lithium batteries, as well as many generator brands, making it a versatile choice for various energy needs. Its ability to work without a battery offers added flexibility for users seeking different operational configurations.

Please note: The option to work without a battery is only for single-use application with stable AC bypass supply, PV energy as a suppliement for AC bypass.

For detailed specifications and compatibility information, refer to the Details and Specifications tab.

Inverter specifications:

• Nominal battery voltage: 48V
• Continuous power output: 8000W/8000VA (220-240V AC)
• Peak power: 16000W
• AC Output frequency: 50/60Hz
• Output waveform: Pure sine wave
• Maximum mains AC charging current: 90A
• AC transfer current: 50A
• Peak efficiency: 95%
• Zero load power: 32W
• Maximum solar output current: 100A (50A per tracker)
• Maximum charge power: 5760W @57.6V (2880W @57.6V per tracker)
• Maximum PV open circuit: 250V
• Maximum PV power per tracker: 4400W + 4400W
• MPPT voltage range: 65 - 245V
• Peak MPPT efficinecy: 98%
• Protection index: IP21
• Operating temperature: -20°C to 65°C
• Humidity: 95% without condensation
• Altitude: <2000m
• Size: 620 x 320 x 164 mm
• Weight: 34 kg

This product is covered by a 5 year manufacturer warranty. For more information please refer to our Terms and Conditions.

This product comes with a detailed user manual which explains wiring and operations (see Documents tab).

If you need help with installation or have any technical questions we can provide FREE support - please contact us by email or phone (see Contact Us page for more information).

The following documents are available to download:

User manual for RIIOSUN-II-48-8K Inverter Charger

Datasheet for RIIOSUN-II-48-8K Inverter Charger