Enlead Energy
Solis S5‑GR3P5K 3-phase 5 kW ongrid string inverter
Solis S5‑GR3P5K 3-phase 5 kW ongrid string inverter
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Solis S5-GR3P5K (3-phase, 5 kW on-grid string inverter
Product Overview
Upgrade your solar PV installation with the Solis S5-GR3P5K – a high-performance, three-phase on-grid string inverter from the globally-trusted brand Solis. Designed for small commercial and larger residential rooftop systems, this inverter delivers exceptional efficiency, dual MPPT flexibility, broad voltage adaptability and advanced safety features. Whether you’re building a 5 kW system or planning for future expansion, the S5-GR3P5K offers strong value and robust performance for the Indian market.
Key benefits include a top efficiency of up to ~98.7 % for maximum energy harvest, wide MPPT voltage range (160 – 1000 V) to support high-voltage modules and bifacial arrays, and built-in export-control capabilities for smart grid-tie compliance. With IP66 ingress protection, AFCI fire-risk mitigation, and optional WiFi/RS485 monitoring, this inverter is a future-proof, installation-friendly choice.
Why Choose the Solis S5-GR3P5K?
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Maximum yield, minimum losses – With a peak efficiency of ~98.7 % you ensure more usable solar energy for your system.
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Dual MPPT for flexible rooftop layouts – Two MPPT trackers enable optimal configuration for split-strings or east/west orientations.
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Wide MPPT range & low start-up voltage – Starts at ~180 V and tracks from ~160 V up to ~1000 V, suitable for high-voltage module setups.
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Smart grid & export control ready – Supports zero-export or controlled export, meeting modern net-metering/utility requirements.
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Robust and installation-friendly – IP66 protection, compact size (310 × 563 × 219 mm) and light weight (~17-18 kg) make it well suited for rooftop outdoor mounting.
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Future-proof connectivity – RS-485 interface, optional WiFi/GPRS support and built-in monitoring platform compatibility.
Technical Specifications
| Specification | Value |
|---|---|
| Model | S5-GR3P5K |
| Inverter Type | Three-phase, grid-tied string inverter |
| Rated AC Output Power | 5000 W |
| Max AC Apparent/Output Power | 5500 W (5.5 kW) |
| Nominal Grid Voltage | 3/N/PE, 220/380V or 230/400V |
| Grid Frequency |
50 Hz / 60 Hz |
| Max. DC Input Power (PV array) | ~7.5 kW (7 500 W) |
| Max. DC Input Voltage | 1100 V |
| Rated DC Voltage | 600 V |
| Start-Up / Min. DC Voltage | 180 V |
| MPPT Voltage Range | 160 V – 1000 V |
| Number of MPPT Trackers / Strings | 2 MPPT / 2 strings |
| Max. Input Current (per string) | 16 A / 16 A |
| Max. Short-Circuit Input Current | 20 A / 20 A |
| Max Efficiency | ~98.3 % – 98.7 % |
| THDi (Total Harmonic Distortion) | < 2 % |
| Power Factor | > 0.99 (adjustable 0.8 leading to 0.8 lagging) |
| Operating Ambient Temperature | –25 °C to +60 °C |
| Ingress Protection (IP) | IP66 |
| Dimensions (W × H × D) | 310 × 563 × 219 mm |
| Weight | ~17.8 kg |
| Communication Interface | RS-485, Optional Wifi/GPRS |
| Protection / Standards | Anti-islanding, surge protection, AFCI, remote update, export control support |
Installation & Application Notes
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Ideal for small commercial or high-end residential rooftop systems where a three-phase supply is available, and ~5 kW AC output is required.
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With dual MPPT, you can split PV strings across different roof orientations or shading zones, enhancing overall yield.
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Ensure PV string voltage remains within 160-1000 V MPPT window for optimal tracking and energy harvest.
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Mount outdoors if required — the IP66-rated enclosure allows for rooftop wall mounting in Indian climatic conditions; however, shade or ventilation best practice will extend lifespan.
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For net-metering or export-limiting installations, leverage the inverter’s export-control function to meet utility or self-consumption rules.
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Use the monitoring interface (RS-485 + optional WiFi) to track system yield, detect performance issues, and optimise maintenance.
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Confirm local utility grid compatibility (voltage, frequency, protection standards) and follow local installation codes/standards for three-phase on-grid systems.
Conclusion
If you’re seeking a efficient, feature-rich three-phase string inverter for a 5 kW grid-tied solar installation, the Solis S5-GR3P5K stands out. With its high efficiency, wide voltage flexibility, dual MPPT capabilities, export-control support and strong build quality for outdoor rooftop use, it presents a compelling solution for installers and system owners.
Buy Solis 5kw ongrid or grid tied solar inverter from Enlead Energy Solutions solar company and take control of your power.
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Is the Solis 3kW S6-GR1P3K-M inverter eligible for the PM Surya Ghar Muft Bijli Yojana subsidy?
Yes, the Solis S6-GR1P3K-M is fully compatible with the PM Surya Ghar Muft Bijli Yojana. Since it is a high-efficiency grid-tied (on-grid) solar inverter, it meets the technical requirements for residential rooftop solar installations under the central government subsidy scheme under the MNRE in India. Using this 3kW Solis inverter ensures your system is optimized for net-metering and maximum subsidy benefits.
What is the efficiency rating of the Solis 3kW Single Phase On-Grid Inverter?
The Solis S6-GR1P3K-M boasts an industry-leading maximum efficiency of 97.3%. It features a wide MPPT voltage range of 90V–520V, which allows the solar panels to start generating power earlier in the morning and continue later into the evening. This high efficiency ensures you get the maximum electricity yield from your 3kW solar power system,even in low-light conditions.
Does the Solis S6-GR1P3K-M include safety features like AFCI protection?
Yes, safety is a core feature of the Solis 3kW S6 model. It comes with integrated AFCI (Arc Fault Circuit Interrupter) protection, which proactively detects DC arc faults and shuts down the system to prevent fire risks. Additionally, it features an IP66 protection rating, making it dustproof and waterproof-ideal for outdoor installations in various Indian weather conditions.