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The TBB RiiO Sun II 3kVA 48V is a robust, all-in-one hybrid solar inverter that is particularly popular for Kenyan residential and small business setups. It is a low-frequency, transformer-based inverter, which means it handles high surge currents (like starting a motor or a fridge) much better than high-frequency alternatives.
| Feature | Details |
| Rated Capacity | 3kVA / 3000W |
| Battery Voltage | 48V DC |
| MPPT Charge Controller | Built-in 60A (approx. 3600W – 5200W PV input) |
| Max PV Voltage (Voc) | 250V (allowing for longer panel strings) |
| Transfer Time | UPS class (0–4ms), safe for servers and TVs |
| Efficiency | Max Inverter efficiency ~94%; MPPT efficiency >99% |
| Peak Power | Up to 6000W (surge handling) |
Transformer-Based: Unlike many “slim” inverters, the RiiO Sun II uses a heavy copper transformer. This makes it more durable for inductive loads like pumps or compressors.
Battery-Free Operation: It can power your loads directly from solar panels during the day even if the batteries are disconnected or failed.
Power Assist: It can “top up” power from the battery when your load exceeds the available grid or generator capacity, preventing your breaker from tripping.
Scalability: With the RiiO Mate accessory, you can parallel up to 9 units for more power or a three-phase system.
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