Solis 2.5kW S6 Dual MPPT Single-Phase Grid-Tie Inverter with Integrated DC Isolator
The Solis 2.5kW S6 is a single-phase, dual MPPT grid-tie inverter rated at 2,500W from the Ginlong Solis Series 6 range. This transformerless inverter accepts up to 3,750W 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 96.5%, and an IP66-rated enclosure, the unit is designed for reliable outdoor installation on residential rooftops. It ships with an integrated DC isolator, integrated AFCI arc-fault protection, and a built-in Export Power Manager. Manufacturer part number: SOL-2.5-S6-DT-DC (supplier reference: S6-GR1P2.5K). Available from DECO Group, a UK solar trade wholesaler.
Key Technical Details
- Brand: Solis (Ginlong Solis)
- Model: S6 Series, 2.5kW Dual Tracker
- Part number (SKU): SOL-2.5-S6-DT-DC
- MPN: S6-GR1P2.5K
- Inverter type: Grid-tie, transformerless
- Rated output power: 2,500W
- Max PV input power: 3,750W
- Max AC output power (5 minutes): 2,800W
- Surge AC power (1 second): 2,800W
- Phase configuration: Single phase
- Rated voltage: 250V
- Grid voltage: 220V / 230V
- MPPT quantity: 2
- Max DC inputs: 2
- Max input voltage: 550V
- MPPT voltage range: 60V to 550V
- DC start-up voltage: 60V
- DC shutdown voltage: 50V
- Max DC current: 28A (14A per string)
- Maximum efficiency: 97.7%
- Euro efficiency: 96.5%
- 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: 13.49kg
- Warranty: 5 years standard
Key Features
- Super high frequency switching technology delivers a maximum efficiency of 97.7% and Euro efficiency of 96.5%.
- Dual MPPT design with precise MPPT algorithm enables 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.
- Low start-up voltage of 60V allows generation to begin in low-irradiance conditions.
- Wide MPPT voltage range of 60V to 550V with a maximum PV input voltage of 550V.
- 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.
- RS485 communication with optional S3-WIFI-ST WiFi data logging stick for remote monitoring.
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). Weight of 13.49kg is manageable for a single-person install but may benefit from assistance depending on mounting position.
- 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.
Certifications and Compliance
- NRS-097 certified (South Africa).
Warranty
- 5-year standard manufacturer warranty.
Common Questions
- What is the maximum PV input for the Solis 2.5kW S6 Dual MPPT?
- The Solis 2.5kW S6 accepts up to 3,750W of PV input power across two independent MPPT trackers, with a maximum input voltage of 550V and 14A maximum current per string.
- What are the dimensions and weight of the Solis 2.5kW S6?
- The inverter measures 310 x 543 x 160mm (W x H x D) and weighs 13.49kg.
- What CT clamp is needed for export limitation on the Solis 2.5kW 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 2.5kW S6 have?
- The Solis 2.5kW S6 features a dual MPPT design with two independent trackers, each supporting up to 14A. This allows two separate PV strings to be optimised independently for 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 tailored to regional market demands. Solis inverters are developed by a research and development team of professors and specialists from eight countries, delivering precise MPPT algorithms, ultra-wide input voltage ranges, and maximum efficiencies exceeding 97%.
DECO Group stocks the full Solis S6 dual MPPT inverter range alongside compatible CT clamps, export power managers, WiFi monitoring sticks, and balance-of-system accessories. Browse our Solis catalogue for the complete selection of single-phase and three-phase grid-tie inverters.
About DECO Group
We are a UK solar wholesaler and distributor providing trade-only supply to MCS-accredited installers and qualified electrical contractors. Our grid-tie inverter catalogue includes the full Solis S6 series in both Mini single MPPT and dual MPPT configurations, backed by a comprehensive range of monitoring, export management, and connectivity accessories.
