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GREATSUNPV Stocked 2.5KW 3KW 5KW 6KW Solis S6 Single-Phase Grid-Tied Solar Inverter
The S6-GR1P(2.5–6)K-S is a new-generation single-phase grid-tied solar inverter designed for residential and small commercial photovoltaic systems. Featuring dual MPPT trackers, 16A string current capability, high conversion efficiency, and advanced safety protections, this inverter ensures maximum energy harvest, reliable performance, and easy installation.
With a compact and lightweight design, integrated smart monitoring, and optional AFCI protection, the S6-GR1P(2.5-6)K-S is an ideal choice for modern rooftop solar installations.
Brand Name:
SolisType:
Grid-tiedMax. Power:
2.5KW-6KWAC Voltage:
550VWarranty:
10 yearsIngress Protection:
IP66Dimensions:
330 × 371 × 161 mmCertification & Safety Standard:
G98 or G99, VDE-AR-N 4105/VDE V 0124, EN 50549-1, VDE 0126/UTE C 15/VFR:2019, RD 1699/RD 244/UNE 206006/ UNE 206007-1, CEI 0-21, C10/11, NRS 097-2-1, EIFS 2018.2, IEC 62116, IEC 61727, IEC60068, IEC 61683, EN 50530, MEA, PEA
The Solis S6-GR1P(2.5–6)K-S series inverter is engineered to deliver efficient, stable, and intelligent energy conversion for residential photovoltaic systems. Supporting power ratings from 2.5kW to 6kW, this inverter range is suitable for a wide variety of home solar installations.
Key design highlights include:
Dual MPPT with wide voltage range
Maximum 16A input current per string
High system efficiency up to 97.7%
IP66 protection level for outdoor installation
Integrated smart monitoring and export control
Whether you are upgrading an existing system or installing a new solar project, this inverter provides reliable long-term performance and flexible compatibility with modern high-power PV modules.
* EU efficiency up to 97.1%
* Dual MPPT design for optimal energy harvest
* Wide MPPT voltage range (50–550V)
* Supports 16A string current, ideal for high-power solar modules
* Max PV input power up to 9kW
* Two independent MPPT trackers
* Optional AFCI protection to reduce fire risk
* Built-in DC switch
* Anti-islanding protection
* Over-current protection
* Surge protection and Temperature monitoring
* MC4 DC connectors
* Quick-plug AC connection
* Natural cooling with ultra-low noise (<20dB)
* Compact and lightweight design (only 8.2–9kg)
* IP66 rated for harsh environments
* LED display with Bluetooth + APP monitoring
* Optional Wi-Fi or GPRS remote communication
* 24-hour load consumption monitoring
Technical Specifications：
| Models | 2.5K | 3K | 3.6K | 4K | 4.6K | 5K | 6K |
| Input DC | |||||||
| Recommended max. PV power | 3.75kW | 4.5kW | 5.4kW | 6kW | 6.9kW | 7.5kW | 9kW |
| Max. input voltage | 550V | ||||||
| Rated voltage | 250 V | 330 V | |||||
| Start-up voltage | 60V | 100 V | |||||
| MPPT voltage range | 50 - 550 V | 90 - 550 V | |||||
| Max. input current | 16 A / 16 A | ||||||
| Max. short circuit current | 22 A / 22 A | ||||||
| MPPT number / Max. input strings number | 2 / 2 | ||||||
| Output AC | |||||||
| Rated output power | 2.5 KW | 3 KW | 3.6 KW | 4 KW | 4.6 KW | 5 KW | 6 KW |
| Max. apparent output power | 2.5 kVA | 3 kVA | 3.6 kVA | 4 kVA | 4.6 kVA | 5 kVA | 6 kVA |
| Max. output power | 2.5 kW | 3 kW | 3.6 kW | 4 kW | 4.6 kW | 5 kW | 6 kW |
| Rated grid voltage | 1/N/PE, 220 V / 230 V | ||||||
| Rated grid frequency | 50 Hz / 60 Hz | ||||||
| Rated grid output current | 11.4 A / 10.9 A | 13.6 A / 13 A | 16 A / 15.7 A | 18.2 A / 17.4 A | 20.9 A / 20 A | 22.7 A / 21.7 A | 27.3 A / 26.1 A |
| Max. output current | 11.4 A | 13.6 A | 16 A | 18.2 A | 20.9 A | 22.7 A | 27.3 A |
| Power Factor | > 0.99 (0.8 leading - 0.8 lagging) | ||||||
| THDi | < 3% | ||||||
| Efficiency | |||||||
| Max. efficiency | 97.3% | 97.3% | 97.6% | 97.7% | |||
| EU efficiency | 96.5% | 96.6% | 97.1% | 97.1% | |||
| General Data | |||||||
| Dimensions(W×H×D) |
330 × 371 × 161 mm
|
||||||
| Weight | 8.2 kg | 8.3 kg | 8.9 kg | 9 kg | |||
| Ingress protection | IP66 | ||||||
Single-family homes/Villas and apartments/New home solar installations
Shops and offices/Small factories/Community buildings
Replacement of older inverters/System expansions/High-power module compatibility upgrades
Thanks to its compact size, high reliability, and flexible communication options, this inverter fits perfectly into modern distributed solar power applications.
Professional one-stop solar system solutions
Original and certified Solis products
Technical support and system design services
Global logistics and after-sales service
Competitive pricing and reliable quality
GREATSUNPV integrates high-quality inverters with our complete solar energy solutions to help customers achieve safe, stable, and profitable renewable energy systems.
The S6-GR1P series supports power ratings from 2.5kW to 6kW, making it suitable for most residential and small commercial PV systems.
Yes. It supports up to 16A input current per MPPT, which is fully compatible with today’s high-power and bifacial solar modules.
Absolutely. The inverter supports Bluetooth + APP monitoring as standard, with optional Wi-Fi or GPRS modules for remote cloud monitoring.
Yes. With IP66 protection level, built-in surge protection, and optional AFCI function, it is designed for safe and reliable outdoor installation.
The inverter is compact and lightweight, with quick AC connectors and standard MC4 DC connectors, making installation fast and convenient.
For more information on this product or to place an order, please contact us：
Email: info@greatsunpv.com
whatsapp: +86 189 1960 5188
Web: www.guruidepv.com
Copyright @ Hefei Guruide New Energy Technology Co., Ltd. 
IPv6 network supported
