5-10kW | Three-phase String Inverter
The Solis S6-GR3P(5-10)K03-NV-ND-AU is a new-generation three-phase string inverter designed mainly for Australian homes on three-phase power. It comes in six power ratings from 5kW to 10kW. It pairs three MPPTs with a DC/AC ratio above 150% and includes export control and 24-hour load monitoring. But does it deliver where it counts?
Key features of the Solis S6-GR3P(5-10)K03-NV-ND-AU Inverter
- Compact and lightweight design: At 355 x 410 x 179 mm and 14.7–15.4 kg, it’s easy to handle and install for a three-phase inverter.
- 3 MPPT design: Three independent MPPTs let panels on different roof faces each perform at their best, increasing total solar output.
- High string current: Up to 20A per MPPT makes it compatible with the latest high-efficiency, high-power solar panels.
- Over 150% DC/AC ratio: You can connect significantly more panel capacity than the inverter’s rated output, helping maximise generation in the mornings, afternoons and on cloudy days.
- Export power control and load monitoring: Built-in export limiting helps meet network rules, and 24-hour consumption monitoring shows how your household uses energy.
- AFCI protection: Optional integrated AFCI 2.0 arc-fault detection helps reduce fire risk.
- Flexible communication: Dual independent RS485 ports allow connection to multiple devices, with optional Wi-Fi or GPRS for remote monitoring, upgrades and settings.
- Built for Australian conditions: It has an IP66 rating, natural cooling (no fans), a -25°C to +60°C operating range and runs at under 40 dB(A).
Specifications of the Solis S6-GR3P(5-10)K03-NV-ND-AU Inverter
- Model options: 5K, 6K, 8K, 9K, 9.9K and 10K
- Maximum power output: 5kW to 10kW
- Recommended maximum PV power: 6.7kW to 13.3kW (depending on model)
- Maximum input voltage: 1100V
- Start-up voltage: 160V
- MPPT voltage range: 160–1000V
- MPPTs / input strings: 3 / 3
- Maximum input current: 20A per MPPT
- Peak efficiency: Up to 98.2% (EU efficiency up to 97.6%)
- Grid connection: Three-phase, 230V / 400V
- Operating temperature: -25°C to +60°C
- Ingress protection: IP66
- Dimensions: 355 x 410 x 179 mm
- Weight: 14.7–15.4 kg
- Communication: Dual RS485, optional Wi-Fi or GPRS, Bluetooth + app
- Certifications: AS/NZS 4777.2:2020, IEC 62109-1/-2, AS 60947.3:2023 (DC switch)
Solis S6-GR3P(5-10)K03-NV-ND-AU Inverter warranty
Solis inverters typically come with a 5-year standard warranty, extendable to 10 years. Confirm the exact warranty terms with an authorised Solis distributor or retailer in Australia, as they may vary depending on the purchase agreement.
Applications for the Solis S6-GR3P(5-10)K03-NV-ND-AU Inverter
The Solis S6-GR3P(5-10)K03-NV-ND-AU is well-suited for:
- Three-phase homes: Ideal for households with three-phase power that want a 5–10kW solar system and balanced output across all phases.
- Complex or multi-facing roofs: Three MPPTs make it a strong fit for homes with panels on several roof orientations.
- Small businesses: Suitable for small shops or offices with three-phase supply and modest energy needs.
Pros of the Solis S6-GR3P(5-10)K03-NV-ND-AU Inverter
- High efficiency: With up to 98.2% peak efficiency and 97.6% EU efficiency, very little of your solar energy is lost in conversion.
- Better performance in partial shade: Multi-peak scanning finds the true maximum power point when trees, chimneys or neighbouring buildings shade part of the array.
- Comprehensive safety protection: Built-in DC reverse-polarity, short-circuit, surge, over-current, temperature and anti-islanding protection, plus an integrated DC switch, safeguard your system and home.
- Grid-friendly output: Low harmonic distortion (THDi < 3%) and an adjustable power factor help the system meet network requirements, and it complies with the current Australian grid standard, AS/NZS 4777.2:2020.
- Minimal standby draw: It uses less than 1W overnight, so it doesn’t eat into your savings when the sun goes down.
- Quick commissioning: A quick-connection AC plug and Bluetooth app setup make installation and configuration faster for installers.
Cons of the Solis S6-GR3P(5-10)K03-NV-ND-AU Inverter
- No battery integration: This is a grid-tied inverter with no battery connection. For battery-ready three-phase systems, consider a hybrid such as the Solis S6-EH3P(5-10)K-H-AU.
- AFCI is optional: Arc-fault protection isn’t standard on every unit, so check with your installer.
- Three-phase only: Not suitable for homes on single-phase power.
- Limited to 10kW: Larger homes and businesses may need a higher-capacity model, such as the Solis S5-GR3P(5-20)K.
Is the Solis S6-GR3P(5-10)K03-NV-ND-AU Inverter right for you?
The Solis S6-GR3P(5-10)K03-NV-ND-AU is an excellent choice for:
- Three-phase residential systems: If your home has three-phase power and you want a 5–10kW solar system, this range covers most needs.
- Homes with multiple roof orientations: Three MPPTs help you get the most from every roof face.
- Homeowners wanting room to grow: The high DC/AC ratio lets you install more panels without upsizing the inverter.
However, if you plan to add a home battery, a Solis three-phase hybrid inverter may be the better choice from the start.
Learn more about Solis.
