What is the S6-GC3P50K04-NV?
- AC output: 50 kW / 50 kVA into a three-phase 3/N/PE supply at 220 V/380 V or 230 V/400 V, 50/60 Hz
- PV side: 4 MPPT trackers, up to 8 strings, 4 × 42 A input current (21 A per string), 4 × 52.5 A short-circuit
- Voltage window: MPPT range 180–1000 V, maximum input voltage 1100 V, supports a DC/AC ratio above 150%
- Efficiency: 98.6% peak, 98.1% EU-weighted, maximum output current 76.0 A / 72.2 A
- Build and warranty: IP66, -25 to +60°C, 508 × 612 × 288 mm, 35.8 kg, five-year standard warranty
The Solis S6-GC3P50K04-NV is a 50 kW three-phase grid-tied inverter, and it is the class of machine our engineers specify for Phuket hotels, resorts, warehouses and villa clusters running on a 380/400 V three-phase supply. What makes it interesting is not the 50 kW badge but the four MPPT trackers feeding up to eight strings, paired with 98.6% peak efficiency — a combination that matters on commercial roofs that are never one clean rectangle. If you are budgeting a commercial rooftop project, our notes on solar cost in Phuket and the calculator are a sensible starting point before equipment selection.
What is the Solis S6-GC3P50K04-NV — and why does the -NV suffix matter so much?
Read the code in pieces: S6 is the sixth-generation platform, GC3P means commercial grid-tied three-phase, 50K is the 50 kW rating, 04 is the hardware revision, and -NV identifies the grid voltage system the unit is built for. That last part is the expensive detail. The same family also includes an -HV suffix, a high grid voltage version for other markets whose DC specifications are identical line for line — same trackers, same string count, same voltage window — but which cannot be connected to a Thai 380/400 V three-phase supply. Order one letter wrong and the hardware arrives on site unusable. The correct unit for Thailand is the -NV, whose datasheet states 3/N/PE at 220 V/380 V and 230 V/400 V. This is a pure on-grid inverter with no battery input, and it stops producing when the grid drops, so a property that also needs outage cover has to be designed as a hybrid with battery backup instead. One more thing we tell clients plainly: the datasheet for this family does not publish a maximum PV power in kW, only that it supports a DC/AC ratio above 150%, so the final array size must be confirmed against the installation manual before design freeze. The rest of the balance-of-system components we pair with it are listed under equipment.
Highlights from the datasheet
- Four MPPT trackers across eight strings: Hotel and factory roofs are split by orientation, plant rooms, ducts and water tanks. Four independent trackers let each roof section run on its own maximum power point, so shading on one group does not pull down the whole array.
- 4 × 42 A input, 21 A per string: Modern high-output and bifacial modules carry more current than older panels. This input rating plus 4 × 52.5 A short-circuit tolerance leaves genuine headroom instead of forcing a compromise on module choice.
- 98.6% peak and 98.1% EU efficiency: On a 50 kW system running every day of the year, fractions of a percent accumulate into a meaningful amount of energy. The EU figure is weighted across realistic operating loads, which makes it the fairer number for comparing inverters.
- 180–1000 V MPPT window with a 1100 V ceiling: A high voltage ceiling means longer series strings, fewer strings overall, less DC cable on the roof and fewer connector joints — which on a tropical roof also means fewer places for water to eventually find its way in.
- Supports a DC/AC ratio above 150%: The manufacturer states the unit handles oversizing beyond 150%, which extends the hours spent at full output in the morning and late afternoon. Note honestly that the datasheet gives no maximum kW figure, so confirm the exact array limit with the installation manual before ordering panels.
- Maximum output current 76.0 A / 72.2 A: This is the figure your designer uses to size AC breakers, main cable and the connection into the distribution board. Undersizing here is a long-term heat problem, not a paperwork detail.
- IP66, -25 to +60°C, 35.8 kg: Suitable for a plant room or a sheltered outdoor wall. At this weight it is a two-person lift onto a structurally sound mounting surface, which should be planned into the installation method.
Key specifications (S6-GC3P50K04-NV)
| Specification | Datasheet value |
|---|---|
| Rated output power | 50 kW |
| Max. apparent output power | 50 kVA |
| MPPT number / Max. input strings number | 4 / 8 |
| MPPT voltage range | 180–1000 V |
| Max. input voltage | 1100 V |
| DC/AC ratio | มากกว่า 150% (เอกสารไม่ระบุกำลัง PV สูงสุดเป็น kW) |
| Max. input current | 4 × 42 A (21 A ต่อสตริง) |
| Max. short circuit current | 4 × 52.5 A |
| Max. efficiency | 98.6% |
| EU efficiency | 98.1% |
| Rated grid voltage | 3 เฟส 3/N/PE, 220 V/380 V, 230 V/400 V, 50/60 Hz |
| Max. output current | 76.0 A / 72.2 A |
| Ingress protection | IP66 |
| Operating ambient temperature range | -25 ถึง +60°C |
| Dimensions (W×H×D) and Weight | 508 × 612 × 288 mm / 35.8 kg |
| Standard warranty | 5 ปี (ซื้อขยายเป็น 10 / 15 / 20 ปีได้ ภายใน 12 เดือนหลังติดตั้ง) |
Note: every figure above comes straight from the Ginlong Technologies Co., Ltd. (จดทะเบียนในตลาดหลักทรัพย์เซินเจิ้น รหัส 300763) datasheet. Actual system design (strings per MPPT, cable sizing, breakers) must be calculated for each site.
Why this model suits Phuket
- Commercial daytime load lines up with peak sun: Hotels, resorts, restaurants and factories on the island draw their heaviest load during daylight, so a grid-tied system of this size feeds consumption directly with no storage required.
- Complex island rooftops: Condensers, extract ducts, water tanks and stepped roof decks are the norm here. Four MPPTs contain the effect of shading to the group of panels actually affected.
- Salt-laden, humid air year-round: An IP66 enclosure rated from -25 to +60°C is appropriate for the roof-deck conditions this island produces on a hot afternoon, and we still choose mounting locations sheltered from direct sea wind.
- Commercial systems need PEA approval: Phuket is in the Provincial Electricity Authority area, and a 50 kW class installation carries more documentation than a household system. We prepare the drawings and file the PEA permits for the client.
Who it suits
- Hotels and resorts: Properties with continuous air conditioning, laundry and kitchen load already on three-phase supply, with room to add further units as roof area allows.
- Factories and warehouses: Large uninterrupted roof planes that suit long series strings, making full use of the wide MPPT voltage window.
- Pool villa developments and multi-building estates: Projects with a shared three-phase supply where the four trackers can be split building by building.
- Restaurants and mid-sized commercial buildings: Businesses with high daytime consumption and enough roof or deck area to justify a system of this scale.
- Not the right fit for: Buildings that need power during an outage — this is a grid-tied only unit, so backup requires a hybrid design or separate standby provision.
Summary
The Solis S6-GC3P50K04-NV pairs 98.6% peak efficiency with the design flexibility of four MPPT trackers across eight strings, which is exactly what a real commercial roof in Phuket demands. Two cautions we repeat on every project: specify the -NV suffix so the grid voltage matches the Thai supply, and confirm the final array size against the installation manual since the datasheet gives only a DC/AC ratio. Pearl Solar Energy's engineers and specialist installers design, install and permit systems built around this inverter — see our services, or contact us with three months of electricity bills for a properly sized proposal.
See other models from this brand on the Solis overview, or browse all the equipment we install.
Download the datasheet (PDF) — full manufacturer specification sheet