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Solis S5-GR3P - Efficient three-phase inverters for residential and commercial PV systems


The S5-GR3P series from Solis is a compact and powerful inverter solution, ideal for three-phase PV systems in residential and commercial applications. With up to 2 MPPTs and 4 DC strings, it enables optimal energy conversion and ensures maximum yields. Thanks to the IP66 protection class and advanced AFCI technology, the series offers maximum safety and long-term reliability.

If you are looking for a single-phase inverter solution for smaller PV systems, discover the Solis S6-GR1P series.
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Solis S5-GR3P - Compact and powerful three-phase inverters


The Solis S5-GR3P series offers an efficient three-phase inverter solution for residential and small commercial PV systems. With a high efficiency of up to 98.7 % and an MPPT voltage range of 160 V - 1000 V, it ensures optimum energy conversion. Thanks to the integrated AFCI protection technology, the risk of fire due to arcing is reduced, while the IP66 protection class ensures a durable and safe installation in various environments.

The inverters support up to 150 % DC/AC oversizing, which enables higher PV power per inverter and reduces installation costs.

Technical highlights of the S5-GR3P series


✔ High efficiency: Max. 98.7 %, European efficiency up to 98.1 %
✔ Flexible MPPT technology: Up to 2 MPPTs and 4 DC strings for optimized energy yields
✔ Wide MPPT range: 160 V - 1000 V, high flexibility in module selection
✔ Increased safety: DC and AC overvoltage protection (type II), AFCI protection, short-circuit protection
✔ Durable & robust: IP66 protection class, for use in demanding environments
✔ High oversizing: Up to 150 % DC/AC ratio for maximum utilization of the PV area
✔ Intelligent control: RS485, optional Wi-Fi & GPRS for remote monitoring

Models of the S5-GR3P series

  • S5-GR3P3K:
Max. DC power 4.5 kWp, max. AC power 3,000 W. 2 MPPTs, 2 DC strings, max. efficiency 98.3 %, European 97.7 %.

  • S5-GR3P4K:
Max. DC power 6.0 kWp, max. AC power 4,000 W. 2 MPPTs, 2 DC strings, max. efficiency 98.3 %, European 97.7 %.

  • S5-GR3P5K:
Max. DC power 7.5 kWp, max. AC power 5,000 W. 2 MPPTs, 2 DC strings, max. efficiency 98.5 %, European 97.9 %.

  • S5-GR3P6K:
Max. DC power 9.0 kWp, max. AC power 6,000 W. 2 MPPTs, 2 DC strings, max. efficiency 98.6 %, European 98.0 %.

  • S5-GR3P8K:
Max. DC power 12.0 kWp, max. AC power 8,000 W. 2 MPPTs, 2 DC strings, max. efficiency 98.7 %, European 98.1 %.

  • S5-GR3P10K:
Max. DC power 15.0 kWp, max. AC power 10,000 W. 2 MPPTs, 4 DC strings, max. efficiency 98.7 %, European 98.1 %.

  • S5-GR3P12K:
Max. DC power 18.0 kWp, max. AC power 12,000 W. 2 MPPTs, 4 DC strings, max. efficiency 98.7 %, European 98.1 %.

  • S5-GR3P15K:
Max. DC power 22.5 kWp, max. AC power 15,000 W. 2 MPPTs, 4 DC strings, max. efficiency 98.7 %, European 98.1 %.

  • S5-GR3P20K:
Max. DC power 30.0 kWp, max. AC power 20,000 W. 2 MPPTs, 4 DC strings, max. efficiency 98.7 %, European 98.1 %.

Maximum efficiency for private and commercial solar systems


The S5-GR3P series is a powerful and compact solution for three-phase PV systems that offer high efficiency, smart monitoring options and robust safety.
✔ Flexible DC/AC oversizing for maximum yields
✔ High protection class (IP66) for long-term reliability
✔ Compact design with intelligent cooling for easy installation

In addition to the S5-GR3P series, Solis offers further inverter solutions for various applications:


Frequently asked questions

  • How innovative are Solis Solar products?
    Solis takes a highly innovative approach to product development. Thanks to a precise MPPT algorithm, it becomes possible to achieve a maximum conversion efficiency of up to 99.1%. In addition, Solis is setting a new industry standard by incorporating the AFCI-DC arc protection feature into the inverters, which provides up to 99% protection against fire hazards. These and other technical advancements have significantly improved the market and show that Solis is moving the industry forward with innovative solutions.
  • Is Solis internationally positioned?
    Solis has a strong international presence with global offices and technical support centers in several countries, including the United Kingdom, the United States, Australia, Brazil, South Africa, India, Mexico, Spain, the Netherlands, Romania and more. Solis products have been used in numerous major cities and projects worldwide, such as the Shanghai Expo and the Eiffel Tower in Paris, as well as numerous other residential and commercial projects.
  • How successful is Solis?
    Ginlong Solis has achieved remarkable success. In June 2022, Solis was ranked as the third largest supplier of solar inverters for 2021, according to IHS Markit, a globally recognized research firm that is part of S&P Global. The company is also ranked No. 2 in the global single-phase string inverter market and No. 4 in the global three-phase string inverter market, based on shipments in megawatts.
  • When was Solis founded?
    Ginlong Solis, a leading manufacturer of solar inverters, was founded in 2005 in Ningbo, one of China's oldest cities in Zhejiang province, and is now one of the most established and well-known players in the industry.
  • What products is Solis known for?
    Primarily known for high-quality solar inverters, Ginlong Solis' product line includes a variety of string inverters, hybrid inverters, and central inverters ranging from 0.7 kW to 255 kW. Ginlong Solis also offers a range of monitoring and control solutions for PV systems, including mobile apps, web portals and data loggers.