Solis S6 150kW Three-Phase 7-MPPT Commercial Grid-Tied Inverter
The Solis S6-GC3P150K07-NV-ND (part number SOL-S6-GC150K) is a 150 kW three-phase, 7-MPPT commercial and industrial grid-tied string inverter. With a maximum DC input of 225 kW across 7 MPPT trackers (21 string inputs at 18 A per string), support for greater than 150% DC/AC ratio, and a maximum efficiency of 98.8% (98.3% EU efficiency), this inverter is engineered for large-scale commercial rooftop, industrial, and ground-mount PV systems using 182 mm and 210 mm high-power modules. It features AI-based AFCI protection, real-time PV grounding detection, intelligent AC/DC terminal temperature sensing, IP66 ingress protection, C5 anti-corrosion rating, and dual independent RS485 ports. Supports master-slave export power control with up to 10 units in parallel. Available from DECO Group, a UK-based solar trade wholesaler.
Key Technical Details
- Part number: SOL-S6-GC150K
- Manufacturer model: S6-GC3P150K07-NV-ND
- Inverter type: Three-phase commercial grid-tied string inverter
- Rated AC output power: 150 kW
- Maximum output power: 165 kW
- Maximum efficiency: 98.8%
- EU efficiency: 98.3%
- Transformer: None (transformerless)
- Maximum PV DC input power: 225 kW
- Maximum input voltage: 1,100 V
- MPPT voltage range: 160 V to 1,000 V
- DC startup voltage: 180 V
- DC shutdown voltage: 180 V
- MPPT quantity: 7
- Maximum string inputs: 21 (3 per MPPT)
- Maximum input current per string: 18 A
- MPPT current: up to 54 A per MPPT
- DC/AC ratio: greater than 150%
- Grid output: 400 V AC, three-phase
- DC switch: Intelligent DC breaking, integrated
- Surge protection: Type II (DC and AC)
- AFCI: AI-based AFCI 2.0
- Communication: Dual independent RS485 ports; optional WiFi/LAN (S2-WL-ST-USB), GPRS, PLC
- Ingress protection: IP66
- Corrosion protection: C5
- Cooling: Intelligent cooling
- Weight: approximately 105 kg
- Connector: MC4
Key Features
- 150 kW three-phase output with 225 kW maximum DC input and greater than 150% DC/AC oversizing support
- 7 MPPT trackers with 21 string inputs for maximum design flexibility across large multi-orientation arrays
- Up to 54 A per MPPT and 18 A per string, compatible with 182 mm and 210 mm high-power PV modules
- 98.8% maximum efficiency and 98.3% EU efficiency
- AI-based millisecond arc protection (AFCI 2.0) for proactive fire risk reduction
- Real-time PV grounding detection and protection
- Intelligent AC and DC terminal temperature sensing for early fault identification
- IP66 ingress protection with C5 anti-corrosion rating for harsh and coastal environments
- Master-slave export power control with up to 10 units in parallel
- Optional three-phase unbalanced output control for broader grid compatibility
- Dual independent RS485 ports for third-party integration and flexible communications
- Supports single and multiple genset applications without an external genset controller
- SolisCloud ready for remote monitoring, diagnostics, and firmware upgrades
- Smart String I-V Curve Diagnosis and intelligent system inefficiency warning
- Night SVG function
System Compatibility
- Designed for 182 mm and 210 mm high-power PV modules
- MC4 DC connectors
- Optional export power meter: METER-3PH-CT3
- Optional WiFi/LAN logger: S2-WL-ST-USB
- Optional PLC communication for larger monitoring layouts
- Supports master-slave export power control with up to 10 units in parallel
- Supports arc fault and RSD (Rapid Shutdown) co-operation for improved fire safety (optional)
Protection Features
- AI-based AFCI 2.0 (DC arc-fault circuit protection)
- Real-time PV grounding detection and protection
- Intelligent AC and DC terminal temperature sensing
- Intelligent DC breaking function
- DC reverse polarity protection
- DC short-circuit protection
- Output overcurrent protection
- Surge protection: Type II (DC and AC)
- Anti-islanding protection
- IP66 ingress protection
- C5 anti-corrosion protection
Certifications and Compliance
- G99
- IEC 61727
- EN 50549-1/2
- VDE 4110
- CE certified
- NRS 097-2-1
Installation Notes
- At approximately 105 kg, a minimum of two people are required for safe handling and mounting
- IP66 and C5 rated for outdoor installation in demanding environments
- Maintain at least 700 mm clearance between inverters and surrounding equipment
- Inverter base must be at least 500 mm above ground or floor level
- Where multiple inverters are installed, use zigzag spacing; do not stack units vertically above one another
- Avoid direct sunlight where possible to reduce thermal derating
- Do not install near flammable substances; maintain a minimum distance of 3 m from such materials
- Inverter surface can reach approximately 70°C during operation
- For startup: switch AC supply ON first, then DC switch ON. For shutdown: Grid Off, then AC OFF, then DC OFF
- Must be installed by a qualified electrician or competent commercial solar installer
Warranty
- Standard warranty: 5 years
- Extended warranty: available up to 20 years
Common Questions
Click a question below to reveal the answer.
How many MPPT inputs does the Solis S6 150kW have?
The S6 150kW has 7 MPPT trackers with 21 string inputs (3 strings per MPPT). Each MPPT supports up to 54 A input current, with 18 A per string.
What is the maximum DC/AC oversizing ratio on the Solis S6 150kW?
The S6 150kW supports greater than 150% DC/AC ratio, with a maximum DC input of 225 kW against 150 kW rated AC output.
Is the Solis S6 150kW suitable for coastal installations?
Yes. The S6 150kW features IP66 ingress protection and C5 anti-corrosion rating, making it suitable for harsh environments including coastal and industrial sites.
Does the Solis S6 150kW include monitoring equipment?
No. Monitoring, export power control, and communications accessories are sold separately. Use the METER-3PH-CT3 for export power management and the S2-WL-ST-USB for WiFi/LAN connectivity. The inverter is SolisCloud ready for remote monitoring.
Can multiple Solis S6 150kW inverters be installed in parallel?
Yes. The S6 150kW supports master-slave export power control with up to 10 units in parallel, and optional three-phase unbalanced output control.
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 professors and specialists from eight countries, Solis inverters are engineered for high efficiency, wide input voltage ranges, and precise MPPT performance.
DECO Group supplies Solis commercial and industrial grid-tied inverters alongside compatible monitoring accessories, export power meters, and communication modules. Browse our commercial inverter catalogue for three-phase solutions from 50 kW to 150 kW and beyond.
About DECO Group
We supply commercial-scale solar inverters, monitoring hardware, and system accessories to professional installers and electrical contractors across the UK. Our Solis C&I range covers high-power three-phase grid-tied inverters with advanced protection and communications for large-scale PV projects. Contact our commercial team or visit decogroup.co.uk for project-specific support.
