Solis 3kW S6 Dual MPPT Single-Phase Grid-Tie Inverter with Integrated DC Isolator
The Solis 3kW S6 is a single-phase, dual MPPT grid-tie inverter rated at 3,000W from the Ginlong Solis S6 series. This transformerless inverter accepts up to 4,500W of PV input across two independent MPPT trackers, each supporting 14A maximum input current for compatibility with high-efficiency and bifacial modules. With a maximum efficiency of 97.7%, Euro efficiency of 96.6%, and an IP66-rated enclosure, the S6 is built for reliable outdoor installation on residential and small commercial rooftops. The unit ships with an integrated DC isolator for safe maintenance and emergency shutdown, plus integrated AFCI arc-fault protection. Manufacturer part number: SOL-3.0-S6-DT-DC (MPN: S6-GR1P3K-DC). Available from DECO Group, a UK solar wholesaler for professional trade installers.
Key Technical Details
- Brand: Solis (Ginlong Solis)
- Model: S6 Series, 3kW Dual Tracker
- Part number (SKU): SOL-3.0-S6-DT-DC
- MPN: S6-GR1P3K-DC
- Supplier part number: S6-GR1P3K
- Inverter type: Grid-tie, transformerless
- Rated output power: 3,000W
- Max PV input power: 4,500W
- Max AC output power (5 minutes): 3,300W
- Surge AC power (1 second): 3,300W
- Phase configuration: Single phase
- Rated voltage: 330V
- Grid voltage: 220V / 230V
- MPPT quantity: 2
- Max DC inputs: 2
- Max input voltage: 600V
- MPPT voltage range: 90V to 520V
- DC start-up voltage: 120V
- DC shutdown voltage: 90V
- Max DC current: 28A (14A per string)
- Maximum efficiency: 97.7%
- Euro efficiency: 96.6%
- Connector type: MC4 (2 pairs included)
- Communication: RS485
- Integrated DC switch: Yes
- Protection rating: IP66
- Cooling: Natural
- Dimensions: 310 x 543 x 160mm (W x H x D)
- Weight: 11.2kg
- Warranty: 5 years standard
Key Features
- Super high frequency switching technology delivers a maximum efficiency of 97.7% and Euro efficiency of 96.6%.
- Dual MPPT design with precise MPPT algorithm allows independent tracking across two strings for improved energy yield on split or multi-orientation arrays.
- 14A maximum input current per string, compatible with high-efficiency and bifacial modules.
- Wide MPPT voltage range of 90V to 520V with a maximum PV input voltage of 600V.
- Integrated AFCI (DC arc-fault circuit protection) proactively reduces fire risk on the DC side.
- Integrated DC switch provides emergency shutdown capability and safe isolation for PV maintenance.
- Export limitation built in via the integrated Export Power Manager (EPM). Requires a CT clamp, sold separately.
- DRM (Demand Response Mode) integrated for smart grid compliance.
- IP66-rated enclosure for reliable outdoor installation.
- Compact and lightweight at 11.2kg for straightforward installation.
System Compatibility
- Compatible with high-efficiency and bifacial PV modules up to 14A per string.
- Export limitation requires a CT clamp (not included). For installations where the inverter is within 10m of the incoming power supply, use CT part number SOL-CT-100A-10M. A firmware upgrade to the latest version is required for this CT to function.
- For installations where the distance from inverter to incoming supply exceeds 10m, use the Solis Export Power Manager (SOL-EPM1-5G) instead.
- RS485 communication with optional S3-WIFI-ST WiFi data logging stick for real-time remote monitoring via SolisCloud.
Installation Notes
- IP66-rated enclosure allows installation in exposed outdoor locations without additional weatherproofing.
- Natural cooling design with no moving parts, reducing long-term maintenance requirements.
- Dimensions of 310 x 543 x 160mm (W x H x D) and a weight of 11.2kg allow for single-person handling and installation.
- Two pairs of MC4 connectors included for direct connection to both PV string inputs.
- Must be installed by a qualified electrician or technician. All installations must adhere to local wiring regulations and standards.
Warranty
- 5-year standard manufacturer warranty.
Common Questions
- What is the maximum PV input for the Solis 3kW S6?
- The Solis 3kW S6 accepts up to 4,500W of PV input power across two independent MPPT trackers, with a maximum input voltage of 600V and 14A maximum current per string.
- What are the dimensions and weight of the Solis 3kW S6?
- The inverter measures 310 x 543 x 160mm (W x H x D) and weighs 11.2kg.
- What CT clamp is needed for export limitation on the Solis 3kW S6?
- For installations within 10m of the incoming power supply, use the SOL-CT-100A-10M (firmware upgrade required). For distances greater than 10m, use the Solis Export Power Manager (SOL-EPM1-5G).
- How many MPPT trackers does the Solis 3kW S6 have?
- The Solis 3kW S6 features a dual MPPT design with two independent trackers, each accepting up to 14A. This allows two separate PV strings to be optimised independently, which is beneficial on split or multi-orientation roof layouts.
About Solis
Since 2005, Ginlong Solis have been at the forefront of the solar inverter industry, recognised internationally for reliable and innovative energy management solutions. Solis inverters are developed by a research and development team comprising professors and specialists from eight countries, delivering precise MPPT algorithms, ultra-wide input voltage ranges, and efficiencies exceeding 97% across the residential and commercial product range.
DECO Group carries the full Solis S6 inverter range alongside compatible CT clamps, WiFi monitoring accessories, export power managers, and balance-of-system components. Browse our complete Solis catalogue for single-phase and three-phase grid-tie inverters suited to residential and commercial installations.
About DECO Group
We are a UK-based solar wholesaler and distributor dedicated to supplying MCS-accredited installers and electrical contractors with professional-grade equipment. Our Solis inverter range spans the compact S6 Mini series through to higher-capacity dual MPPT models, all supported by a full selection of monitoring, export management, and connectivity accessories.
