

Solis 25KW-40KW On-Grid Solar Inverter | High-Efficiency 3-Phase for Commercial PV Systems
Power Your Business with Unmatched Solar Intelligence
Unlock the full potential of your commercial solar investment with the Solis S6-GC3P(25-40)K03-ND three-phase string inverter series. Engineered for small to medium commercial projects demanding reliability, maximum energy harvest, and smart management, this advanced inverter transforms sunlight into predictable savings and ROI. With a 98.6% maximum efficiency and industry-leading >150% DC/AC overloading capability, it ensures your system generates more power, longer, even on sub-optimal days.
Model: :
S6-GC3P(25-40)K03-NDMax.Power: :
37.5 kW/45 kW/49.5KW/54 kW/60KWMPPT voltage range: :
180 - 1000 VMPPT number / Max. input strings number: :
3/6Dimensions(mm): :
355 × 625 × 250 mmWeight(kg): :
25.3 kg/25.5 kg/26.5 kgWarranty: :
5 Years(10 Years Optional)
Three Phase Grid-Tied Inverter Leading Features
*Adaptive weak grid *> 150% DC/AC ratio
*String current up to 21A *IP66, C5 Anti-Corrosion Level
*24-hour load consumption monitoring *Dual independent RS485 ports, supporting communication with multiple devices
Maximized Energy Yield: 3 independent MPPTs with a wide 180-1000V range allow optimal configuration for different roof planes or module types, capturing up to 30% more energy in complex installations.
Built for Harsh Environments: IP66 & C5-M corrosion resistance certification guarantees reliable operation in coastal, industrial, or dusty areas, from -25°C to +60°C.
Advanced Diagnostics & Monitoring: Integrated 24/7 load monitoring and I-V curve scanning enable proactive fault detection, minimizing downtime and operational costs.
Future-Proof Design: Supports high-current (21A) PV modules and offers flexible communication (RS485, optional Wi-Fi/GPRS), protecting your investment against technological shifts.
Performance Parameter
| Models | 25K03-NV | 30K03-NV | 33K03-NV | 36K03-NV | 40K03-HV |
| Input DC | |||||
| Recommended max.PV power | 37.5kW | 45kW | 49.5 kW | 54kW | 60 kW |
| Max.input voltage | 1100V | ||||
| Rated voltage | 600V | 720V | |||
| Start-up voltage | 180V | ||||
| MPPT voltage range | 180-1000V | ||||
| Max.input current | 42A/42A/42A | ||||
| Max.short circuit current | 52.5A/52.5A/52.5A | ||||
| MPPT number/Max.input strings number | 3/6 | ||||
| Output AC | |||||
| Rated output power | 25kW | 30 kW | 33kW | 36kW | 40kW |
| Max.apparent output power | 25KVA | 30 KVA | 33 KVA | 36 KVA | 40KVA |
| Max.output power | 25kW | 30 kW | 33kW | 36 kW | 40kw |
| Rated grid voltage | 3/N/PE, 220 V / 380 V, 230 V / 400 V | 3/PE, 480 V | |||
| Rated grid frequency | 50 Hz/60Hz | ||||
| Rated grid output current | 38.0A/36.1A | 45.6A/43.3A | 50.1A/47.6A | 54.7A/52.0A | 48.1A |
| Max.output current | 38.0A/36.1A | 45.6A/43.3A | 50.1A/47.6A | 54.7A/52.0A | 48.1A |
| Power factor | > 0.99 (0.8 leading - 0.8 lagging) | ||||
| THDi | <3% | ||||
| Efficiency | |||||
| Max.efficiency | 98.50% | 98.6% | |||
| EU efficiency | 98.0% | 98.1% | |||
| Protection | |||||
| DC revrse-polarity protection | Yes | ||||
| Short circuit protection | Yes | ||||
| Output over current protection | Yes | ||||
| Surge protection | Yes | ||||
| Grid monitoring | Yes | ||||
| Anti-islanding protection | Yes | ||||
| Temperature protection | Yes | ||||
| Strings monitoring | Yes | ||||
| I/V Curve scanning | Yes | ||||
| Multi peakscan | Yes | ||||
| Integrated AFCI2.0 | Optional | ||||
| Integrated DC switch | Yes | ||||
| General Data | |||||
| Dimensions (W×H×D) | 355×625×250 mm | ||||
| Weight | 25.3kg | 25.5kg | 26.5kg | ||
| Topology | Transfomerless | ||||
| Self-consumption (night) | <1W | ||||
| Operating ambient temperature range | -25~+60°℃ | ||||
| Relative humidity | 0-100% | ||||
| Ingress protection | IP66 | ||||
| Noise emission (typical) | ≤55 dB(A) | ||||
| Cooling concept | Inteligent fan-cooling | ||||
| Max.operation altitude | 4000m | ||||
| Grid connection 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, TOR, EIFS 2018.2, IEC 62116, IEC 61727, IEC60068, IEC 61683, EN 50530 |
||||
| Safety/EMC standard | IEC/EN 62109-1/-2, IEC/EN 61000-6-1/-2/-3/-4 | ||||
| Features | |||||
| DC connection | MC4 connector | ||||
| AC connection | OT terminal | ||||
| Display | LED indicator&Bluetooth+APP | ||||
| Communication | RS485,Optional:Wi-Fi,GPRS | ||||
FAQ
1. What are the standout features of this inverter series for my commercial project?
This series delivers exceptional return on investment (ROI) and reliability. It features a 98.6% peak efficiency for maximum energy harvest, a >150% DC/AC ratio to optimize panel oversizing, and a robust IP66 & C5 anti-corrosion rating for durability in harsh environments.
2. How do the 3 independent MPPTs benefit my system design?
Having 3 separate Maximum Power Point Trackers (MPPTs) allows you to connect solar panels from different roof orientations, tilt angles, or brands to the same inverter without significant efficiency loss. This flexibility is ideal for complex commercial rooftops and maximizes energy yield by ensuring each string operates at its optimal point.
3. Does this inverter support high-current, modern solar panels?
Yes, it is future-ready. With a maximum string current of 21A per MPPT, it is fully compatible with today’s high-power, high-current photovoltaic modules (including 500W+ panels), providing flexibility for both current and future solar panel technologies.
4. Can this inverter provide backup power during a grid outage?
No. As a standard grid-tied inverter, it is designed to feed power into the utility grid and will automatically shut down during a blackout for safety (anti-islanding protection). If backup power is required, please inquire about our hybrid inverter and battery storage solutions, which can be integrated for off-grid capability.
5. What is the warranty and how do I get technical support?
This series comes with a standard 5-year warranty, with an optional extension to 10 years for added investment protection. For technical support, installation guidance, or troubleshooting, please contact our global support team or your local authorized service partner through our official website.
Take the next step toward a sustainable and profitable energy future.
Contact our expert team today for a personalized system design, detailed financial modeling, and to discuss volume pricing for your project. Let's build your optimal solar solution together.
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