Solis S5-GC30K 30kW Three-Phase 3-MPPT Commercial Grid-Tied Inverter
The Solis S5-GC30K (part number SOL-S5-GC30K-DC) is a 30 kW three-phase, 3-MPPT commercial grid-tied string inverter from the Solis S5 series. Part of the S5-GC(25-40)K range, it features 3 MPPT trackers with 6 string inputs (2 per MPPT) at 32 A per MPPT and 16 A per string, a maximum PV DC input of 45 kW (150% DC/AC ratio), and a maximum efficiency of 98.5% (98.1% EU efficiency). With a maximum AC output of 33 kW, integrated AFCI arc-fault protection, IP66 ingress protection, intelligent I-V curve scanning, and SolisCloud remote monitoring capability, the S5-GC30K is designed for commercial rooftop and industrial PV installations. G99 certified. Available from DECO Group, a UK-based solar trade wholesaler.
Key Technical Details
- Part number: SOL-S5-GC30K-DC
- Supplier part number: S5-GC30K
- Inverter type: Three-phase commercial grid-tied string inverter
- Rated AC output power: 30 kW
- Maximum AC output power: 33 kW
- Surge AC power (1 second): 33 kW
- Maximum efficiency: 98.5%
- EU efficiency: 98.1%
- Transformer: None (transformerless)
- Maximum PV DC input power: 45 kW
- DC/AC ratio: 150%
- Maximum DC input voltage: 1,100 V
- MPPT voltage range: 200 V to 1,000 V
- DC startup voltage: 200 V
- DC shutdown voltage: 180 V
- Maximum DC input current: 96 A total (32 A per MPPT, 16 A per string)
- MPPT quantity: 3
- Maximum DC inputs: 6 (2 per MPPT)
- Connector: MC4 (12 included)
- Integrated DC switch: Yes
- AFCI: Yes (integrated DC arc-fault circuit protection)
- Surge protection: Type II (DC and AC)
- DC reverse polarity protection: Yes
- Ingress protection: IP66
- Weight: 43 kg
Key Features
- 30 kW rated output with 33 kW maximum and 45 kW DC input for 150% DC/AC oversizing
- 3 MPPT trackers with 6 string inputs (32 A per MPPT, 16 A per string)
- 98.5% maximum efficiency and 98.1% EU efficiency
- Integrated AFCI (DC arc-fault circuit protection) for proactive fire risk reduction
- IP66 rated for outdoor installation in demanding environments
- Intelligent string monitoring with smart I-V curve scanning
- Integrated DC switch for emergency shutdown and safe PV maintenance
- SolisCloud ready for remote monitoring, diagnostics, and firmware upgrades
System Compatibility
- Part of the Solis S5-GC(25-40)K series
- MC4 DC connectors (12 included)
- This inverter does not include a data logger, CT, meter, or export power manager
- For export power control of a single inverter: use the SOL-METER-3PH-CT3 meter (requires a data logging stick)
- For export power control of multiple inverters: use the EPM3-5G-PLUS (has built-in data logger)
- Extended warranty available: SOL-WAR-10Y-25-40K-S5 (5 additional years) or SOL-WAR-20Y-25-40K-S5 (15 additional years)
Protection Features
- Integrated AFCI (DC arc-fault circuit protection)
- DC reverse polarity protection
- Integrated DC switch
- Surge protection: Type II (DC and AC)
- IP66 ingress protection
Certifications and Compliance
- G99
- G100
- EN 50549
- NRS 097-2-1
- CE certified
Installation Notes
- At 43 kg, a two-person lift is recommended
- IP66 rated for indoor or outdoor installation
- Must be installed by a qualified electrician or technician in compliance with local wiring regulations
Warranty
- Standard warranty: 5 years
- Extended warranty: extendable to 10 years (SOL-WAR-10Y-25-40K-S5) or 20 years (SOL-WAR-20Y-25-40K-S5)
Common Questions
Click a question below to reveal the answer.
Does the Solis S5-GC30K include monitoring equipment?
No. This inverter does not include a data logger, CT, meter, or export power manager. For single-inverter export control, use the SOL-METER-3PH-CT3 (requires a data logging stick). For multi-inverter systems, use the EPM3-5G-PLUS (has a built-in data logger). All accessories are sold separately.
How many MPPT inputs does the Solis S5-GC30K have?
The S5-GC30K has 3 MPPT trackers with 6 string inputs (2 per MPPT), rated at 32 A per MPPT and 16 A per string.
What is the difference between the Solis S5 30kW and 40kW?
Both are in the S5-GC(25-40)K series and share the same MPPT current ratings (32 A per MPPT, 16 A per string) and efficiency (98.5% max, 98.1% EU). The 30 kW has 3 MPPTs with 6 inputs, while the 40 kW has 4 MPPTs with 8 inputs. The 30 kW accepts 45 kW DC input vs 60 kW on the 40 kW. They use the same warranty extension parts.
Can I extend the warranty on the Solis S5-GC30K?
Yes. The standard 5-year warranty can be extended to 10 years or 20 years with the appropriate warranty extension parts.
About Solis
Ginlong Solis, established in 2005, is an internationally recognised manufacturer of solar inverters for residential, commercial, and utility-scale applications. Designed by a global R&D team of specialists from eight countries, Solis inverters deliver high efficiency, wide input voltage ranges, and precise MPPT performance.
DECO Group supplies Solis commercial grid-tied inverters across the S5 and S6 series alongside compatible monitoring accessories, export power meters, and extended warranty packages. Browse our commercial inverter catalogue for the complete Solis C&I range.
About DECO Group
We supply Solis commercial-scale inverters and system accessories to professional solar installers and electrical contractors across the UK. Our Solis S5 range covers three-phase grid-tied inverters from 25 kW to 60 kW. Contact our commercial team or visit decogroup.co.uk for project support.
