RIIO SUN-II 3KVA/48 SOLAR INVERTER 250V/60A-(TBB)

Description

The TBB RiiO Sun II 3KVA/48V is a compact all-in-one transformer-based hybrid solar inverter for backup power, off-grid, and ESS applications. It combines a pure sine wave inverter, a 35A AC battery charger, a single MPPT solar charge controller, and a 4ms automatic transfer switch in a single unit. The transformer-based design handles surge loads at 300% rated power making it reliable for fridges, pumps, and motor-driven appliances. With battery-optional operation and support for parallel and three-phase configurations via the RiiO Mate accessory, the 3KVA is an efficient, scalable entry-level solution in the RiiO Sun II range.

Key Features

• All-in-One Design: Integrates a pure sine wave inverter, dual MPPT solar charge controllers, a 35A AC battery charger, and a 4ms automatic transfer switch in a single compact unit, simplifying installation and reducing wiring complexity.
• Transformer-Based Construction: The heavy-duty transformer core provides exceptional surge handling at 300% rated power 
• MPPT Solar Charge Controller: Single 60A MPPT tracker with a maximum PV open circuit voltage of 250V which  supports long string configurations and maximizes energy harvesting with efficiency up to 98%.
• 4ms Ultra-Fast Transfer Switch: Switches to battery power in under 4ms during a grid outage fast enough to maintain uninterrupted operation of sensitive electronics, computers, and critical loads without a noticeable power interruption.
• Scalable Parallel & Three-Phase Operation: Supports parallel and three-phase operation via the RiiO Mate accessory scaling up to 36KVA for larger installations.
• ESS & Peak Shaving Ready: Integrates with the TBB E4 LCD Monitor for advanced energy storage system features including peak shaving, time-of-use energy management, and self-consumption optimization.
• AGS Generator Control: Automatic Generator Start function activates the generator only when solar and battery power are insufficient —minimizing fuel consumption and automating hybrid energy management.
• ECO Mode: Reduces inverter standby power consumption during periods of low load, extending battery backup time and minimizing energy waste.

Technical Specifications:

• Model: RIIO SUN II 3KVA/48V SOLAR INVERTER -(TBB)
• Type: Transformer-Based Hybrid Solar Inverter
• Terminal Type: Lugs 
• Nominal Battery Voltage: 48V
• Weight: 18Kgs
• Dimensions: L: 144 W: 217 H: 499

Ideal For:

• Residential backup power, Small off-grid homes and cabins, Hybrid solar-genset systems , Water pump and motor applications ,Remote facilities , Self-consumption systems, Scalable installations (expand to 36KVA via RiiO Mate accessory without replacing the inverter)

Why Choose TBB Solar Inverter?

Most solar installations require separate devices for inverting, charging, and switching but this inverter eliminates all of that in a single transformer-based unit. Its heavy-duty transformer core handles surge loads at 300% rated power — pumps, compressors, and motor-driven appliances that lighter switchmode inverters struggle with. The 60A MPPT controller with 250V open circuit voltage supports long panel strings efficiently, the 4ms transfer switch keeps critical electronics running without interruption, and parallel support via RiiO Mate means the system scales to 36KVA without replacing any hardware. One unit. Real-world reliability. Room to grow.