# Solis S6-GC125K — 125 kW three-phase grid inverter, 10 MPPT, IP66

SKU: SOLIS-S6-GC125K

Updated: 2026-11-01

Batterado: https://batterado.com/product/solis-s6-gc125k-trifazovy-sitovy-stridac/

125 kW for commercial PV with 10 independent MPPTs and 20 strings. Solis S6-GC125K offers up to 98.7% efficiency, an LCD overview and intelligent string monitoring with I/V scanning. Input trackers alternate 42 and 36 A limits for precise matching of module groups. The IP66 fan-cooled enclosure operates from −30 to +60 °C. This offer includes DC switch.

## Technical specifications

| Parameter | Value |
|---|---|
| Manufacturer | Solis / Ginlong Technologies |
| Manufacturer model | S6-GC125K |
| Offered configuration | DC switch |
| Operating system | Three-phase commercial PV plant: modules, grid inverter and utility grid |
| Rated AC output | 125000 W |
| Maximum AC output | 125000 W |
| Maximum apparent output | 125000 VA |
| MPPT count | 10 |
| String count | 20 |
| Strings per MPPT | 2 |
| Maximum DC voltage | 1100 V |
| Rated DC voltage | 600 V |
| Start-up voltage | 180 V |
| MPPT range | 160–1000 V |
| MPPT input current — alternating trackers | 5 × (42 A / 36 A) |
| Short-circuit current per MPPT | 50 A |
| Rated grid voltage | 3/N/PE; 220/380 V; 230/400 V |
| Rated current at 380/400 V | 189.9 / 180.4 A |
| Maximum AC current | 189.9 A |
| Grid frequency | 50 / 60 Hz |
| Power factor | >0.99; adjustable 0.8 leading to 0.8 lagging |
| THDi | <3 % |
| Maximum efficiency | 98.7 % |
| European efficiency | 98.3 % |
| Night consumption | <2 W |
| Individual MPPT currents | 42 / 36 / 42 / 36 / 42 / 36 / 42 / 36 / 42 / 36 A |
| High-current strings | Up to 21 A according to product range; actual wiring accounts for the corresponding MPPT current |
| DC polarity protection | Integrated function |
| Short-circuit protection | Integrated function |
| AC overcurrent protection | Integrated function |
| Grid monitoring | Integrated function |
| Anti-islanding protection | Integrated function |
| Temperature protection | Integrated function |
| String monitoring | Integrated function |
| I/V scanning | Integrated function |
| Night SVG | Integrated function |
| DC switch | Integrated function |
| Surge protection | DC Type II / AC Type II |
| AFCI 2.0 | Optional family equipment according to configuration |
| PID recovery | Optional family equipment according to configuration |
| Primary / secondary control | Optional family equipment according to configuration |
| Integrated AC switch | Optional family equipment according to configuration |
| PID — operating principle | For PID configuration automatic nighttime recovery; at DC bus <50 V generates 450 V between PV− and earth, with AC active |
| AFCI — recovery | For AFCI configuration, after DC circuit inspection hold ESC 3 s per manual |
| User interface | LCD 2 ×20 characters, LEDs and buttons |
| Main menu | Information / Settings / Advanced Info / Advanced Settings |
| Operating data | PV voltage and string currents, AC phase voltages/currents, frequency, active/reactive/apparent power, mode and serial number |
| Energy overview | Today, yesterday, current/previous month, total; day/month/year history |
| LCD automatic cycling | Power/status every 5 s; information screens every 10 s |
| Screen lock | ENTER |
| Alarm history | 100 |
| Warning history | 100 |
| Service information | Running messages, internal temperature, model/firmware, settings history and communication data |
| Time and addressing | Date/time; addresses 01–99, default 01 |
| Communication | RS485; Wi-Fi / GPRS / PLC optional |
| Independent channels | RS485-1 / RS485-2 |
| COM1 data logger | USB Wi-Fi/GPRS, shared RS485-1 channel |
| Monitoring and EPM | Solis logger, PLC and EPM use RS485-1; devices connect according to COM board |
| Dedicated meter port | Meter A / B |
| Primary / secondary communication | RS485-3; 3 × RS485 interconnection cable |
| I/O interface | RSD, emergency stop and generator signal according to design |
| Four-pole terminal block | 1 A1 IN /2 B1 IN /3 A2 OUT /4 B2 OUT |
| RS485 — detailed cable | 0.2–1.5 mm²; Ø5–10 mm |
| RS485 — stripping | Sheath 30 mm / conductor 8 mm |
| RS485 — summary table / torque | 0.3–4 mm² / 0.6 Nm |
| PLC monitoring | Optional system with PLC CCO and logger |
| Logic control | RJ45:5 Switch_input1 /6 Switch_input2 |
| Logic control — response | When enabled, opening limits output to 0 W within 5 s |
| Meters and CT ratios | DTSD1352 external CT:300 A/5 A; ADL400:2000 A/5 A |
| Meter communication wiring | 21 A /22 B → Meter A /B |
| CT orientation | P2/arrow towards grid |
| Export metering | Grid-side or load-side meter according to configuration |
| 24-hour consumption | Grid-side meter with corresponding monitoring |
| Primary / secondary EPM — capacity | Up to 10 units in supported configuration; equipment and firmware according to design |
| Primary / secondary EPM — meter | ADL400; menu ADL400C |
| AC wiring in EPM | 3P_4W /3P_3W |
| Unbalanced export control | Supported configuration with ADL400, 3P_4W and neutral connected; same phase sequence for all inverters |
| EPM modes | AUTO-DIO /AutoAcbox /Gen /Grid |
| Grid / generator power control | GridExp.P /GENMinP |
| Single generator — interface | 220 V AC →5 V DC adapter →primary inverter I/O |
| Multiple generators | 2–3 generators via AC source box and primary inverter |
| External generator controller | Compatible DEIF-controller option according to design |
| External EPM | Failsafe according to external control |
| Active and reactive power | Output, reactive power, restore and PF Curve settings |
| Grid configuration | Grid profile, Grid ON/OFF, power gradients, frequency control, 10-minute voltage, power priority and PCC |
| User-Def — overvoltage / undervoltage | 220–374 V /110–277 V phase voltage; grid-profile configuration range |
| User-Def — frequency | OV 50.1–65 Hz /UN 45–59.9 Hz |
| User-Def — times | Protection response 0.01–300 s; startup/restore 10–600 s according to approved profile |
| I/V scan — start voltage | 300–1000 V |
| I/V scan — step / points | 1–100 V /60 |
| Calibration and service | Energy, power and voltage calibration, fan test, HMI/DSP updates and service diagnostics |
| Dimensions W × H × D | 1014 ×567 ×345 mm |
| Weight | 96 kg |
| Ingress protection | IP66 |
| Topology | Transformerless |
| Cooling | Intelligent fan cooling |
| Operating temperature | −30…+60 °C |
| Operating humidity | 0–100 % RH |
| Altitude | 4000 m |
| Storage temperature | −40…+70 °C |
| Storage humidity | 0–100 % RH non-condensing |
| Package stacking | 4 |
| Mounting position | Vertical or backward tilt up to 15° |
| Mounting site | Firm fire-resistant wall/rack, airflow and suitable shelter from sun/rain/snow |
| Mounting clearances | 500 mm above, sides and floor; 1000 mm front |
| Multiple units — clearances | ≥500 mm |
| Standard bracket hole spacing | 958 ×369 mm; Ø11 mm |
| AC-switch variant bracket | 1008 ×369 mm; Ø11 mm |
| Drilling / bracket torque | ≤90 mm /30–35 Nm |
| Locking screw torque | 2–3 Nm |
| Rack attachment | Ø12.5 mm /M10 ×40 /35 Nm |
| Cable support near ports | 300–350 mm |
| Lower DC terminals / ground | ≥450 mm |
| External earthing | Cu 25–50 mm², at least half phase cross-section; M10 lug, 10–12 Nm |
| DC conductors | PV1-F Cu 4–6 mm², recommended 4 mm², Ø5.5–9 mm |
| DC connector / stripping / torque | MC4 /7 mm /3–4 Nm |
| AC conductors — detailed table | Cu 35–240 mm²; recommended 70 mm² |
| AC conductors — summary table | 50–240 mm² |
| AC cable diameter | 38–56 mm; recommended 45 mm |
| AC connection | OT M10 /10–20 Nm |
| AC stripping | Sheath 300 mm; S2=S1+2–3 mm |
| Aluminium AC cables | Suitable Cu/Al bimetal lugs according to cable and design |
| Neutral conductor | Connection according to local grid; 3P_4W with neutral for unbalanced control |
| Recommended AC breaker | 250 A |
| STG-4150HA vent valve | 3.5–4 Nm |
| M7547B-T gland body / nut | 13–16 Nm /15–19 Nm |
| M2012B gland body / nut | 2.5–3.5 Nm /3.5–4.5 Nm |
| M1610B gland body / nut | 2–3 Nm /2–3 Nm |
| Package — inverter / bracket / manual | 1 /1 /1 |
| Package — screws | 2 ×M6 ×12 |
| Package — DC connectors | 20 |
| Complete plant components | PV modules, mounting accessories, protection, cables and, as designed, meter, CTs, logger, EPM or AC source box |
| Grid standards | G99; IEC61727; EN50549-1/2; VDE4110 |
| Safety | IEC/EN62109-1/-2 |
| EMC | IEC/EN61000-6-2/-4 |
| Estimated delivery | 2–3 days |

## Generation for businesses and larger sites

S6-GC125K converts module energy for a three-phase connection. Rated output 125 kW describes instantaneous conversion capacity; kWh generation depends on sunlight, orientation and array size. The plant combines PV modules, this grid inverter, utility grid, mounting accessories and electrical equipment selected by design. Generation serves local demand and controlled export.

## MPPTs matched to actual currents

10 independent MPPTs each connect two strings, 20 overall. Tracker limits alternate 42/36 A, each with 50 A short-circuit current. String wiring follows actual module currents, the corresponding MPPT and manufacturer diagram. Start-up voltage is 180 V, MPPT range 160–1000 V, rated DC 600 V and maximum 1100 V. Design verifies string voltage at the local minimum temperature and distributes modules across the trackers.

## Output and efficient conversion

Rated AC output is 125000 W, maximum 125000 W and apparent output 125000 VA. Rated current at 380/400 V is 189.9 / 180.4 A, maximum 189.9 A. 3/N/PE connection uses 220/380 or 230/400 V at 50/60 Hz. Maximum efficiency 98.7% and European 98.3% combine with THDi below 3% and adjustable power factor. Transformerless construction has night consumption below 2 W.

## LCD overview and diagnostics

The two-line, 20-character LCD and buttons provide generation, PV/AC voltages and currents, frequency and operating mode. Information and Settings menus complement service Advanced Info and Advanced Settings. The overview includes daily, monthly and total yield plus individual day, month and year history. Diagnostics retain 100 alarms and 100 warnings; service records include firmware, settings changes and communication.

## Communication and remote monitoring

Two independent RS485 channels connect devices with monitoring and control. USB COM1 for a Wi-Fi/GPRS logger shares RS485-1, also used by Solis PLC and EPM. A dedicated Meter port serves the meter, RS485-3 serves primary/secondary control, and I/O serves RSD, emergency-stop or generator signals. Optional PLC uses a PLC CCO and logger. The gallery includes the actual COM board and wiring diagrams.

## Consumption and export metering

The manual specifies DTSD1352 with external 300/5 A CTs and ADL400 with a 2000/5 A ratio. Meter 21A/22B connects to dedicated Meter A/B. CT P2 or arrows face the grid and each phase matches its current input. Export management can use grid-side or load-side metering; full-day consumption monitoring uses grid-side metering. Actual ratios and measurement arrangement follow plant design.

## Multiple inverter and generator control

A supported primary/secondary configuration connects up to 10 units, a suitable meter and three RS485 communication paths. ADL400 on the primary enables corresponding EPM control; unbalanced control uses 3P_4W, connected neutral and consistent phase sequence. One generator signals through a 220 V AC to 5 V DC adapter into I/O; two to three generators use an AC source box. Equipment, firmware and wiring match the project and offered configuration.

## Grid settings and I/V diagnostics

The grid profile matches the approved connection. Service settings provide active/reactive output, PF Curve, power gradients, frequency control, 10-minute voltage and power priority. User-Def values in the table describe protection configuration, rather than the normal grid-voltage range. I/V scanning starts between 300–1000 V with a 1–100 V step and up to 60 points. Energy, voltage and power calibration complement fan testing and HMI/DSP service.

## Robust construction and mounting

The 1014 ×567 ×345 mm enclosure weighs 96 kg and provides IP66. Intelligent fans support −30 to +60 °C operation, 0–100% humidity and altitude up to 4000 m. A firm fire-resistant wall or rack provides airflow and suitable shelter from direct sun and precipitation. Standard mounting is vertical or tilted backward up to 15°. Clearances are 500 mm above, sides and floor, and 1000 mm front. Handling accounts for weight using grips and appropriate equipment.

## Electrical connection and equipment

This configuration includes DC switch. PV1-F copper 4–6 mm² and original MC4 connectors serve the DC side. The detailed AC table specifies Cu 35–240 mm² with 70 mm² recommended; the summary table gives 50–240 mm². Final sizing follows routing and project design. M10 OT terminals use 10–20 Nm, external M10 earthing 10–12 Nm, and recommended AC protection is 250 A. DC and AC Type II surge protection complements grid, temperature and electrical-fault monitoring.

## Complete plant design

The package includes inverter, bracket, two M6×12 screws, 20 DC connectors and manual. Modules, mounting accessories, protection, cables and any metering, logger, EPM or generator equipment follow system design. kW describes power and kWh energy; any storage uses a separately designed compatible battery system with an appropriate converter. Batterado helps match suitable components. Storage conditions are −40 to +70 °C, 0–100% non-condensing humidity and up to four packaged units high.

## Product images

![Solis S6-GC125K — original product view](https://batterado.com/wp-content/themes/wodatherm/assets/images/solar-projects/solis-s6-gc80-125-original.png)

![Batterado — SOLIS-S6-GC125K](https://batterado.com/wp-content/uploads/2026/11/solis-s6-gc80-125-original-6.png)

















## Downloads

[Solis S6-GC 80–125 kW — datasheet V4.0](https://batterado.com/wp-content/themes/wodatherm/assets/documents/solar-projects/solis-s6-gc80-125-datasheet-v40.pdf)

[Solis S6-GC — European manual V1.0](https://batterado.com/wp-content/themes/wodatherm/assets/documents/solar-projects/solis-s6-gc80-125-manual-v10.pdf)

## AI search description

125 kW for commercial PV with 10 independent MPPTs and 20 strings. Solis S6-GC125K offers up to 98.7% efficiency, an LCD overview and intelligent string monitoring with I/V scanning. Input trackers alternate 42 and 36 A limits for precise matching of module groups. The IP66 fan-cooled enclosure operates from −30 to +60 °C. This offer includes DC switch. S6-GC125K converts module energy for a three-phase connection. Rated output 125 kW describes instantaneous conversion capacity; kWh generation depends on sunlight, orientation and array size. The plant combines PV modules, this grid inverter, utility grid, mounting accessories and electrical equipment selected by design. Generation serves local demand and controlled export. The package includes inverter, bracket, two M6×12 screws, 20 DC connectors and manual. Modules, mounting accessories, protection, cables and any metering, logger, EPM or generator equipment follow system design. kW describes power and kWh energy; any storage uses a separately designed compatible battery system with an appropriate converter. Batterado helps match suitable components. Storage conditions are −40 to +70 °C, 0–100% non-condensing humidity and up to four packaged units high.

Manufacturer: Solis / Ginlong Technologies; Manufacturer model: S6-GC125K; Offered configuration: DC switch; Operating system: Three-phase commercial PV plant: modules, grid inverter and utility grid; Rated AC output: 125000 W; Maximum AC output: 125000 W; Maximum apparent output: 125000 VA; MPPT count: 10; String count: 20; Strings per MPPT: 2; Maximum DC voltage: 1100 V; Rated DC voltage: 600 V; Start-up voltage: 180 V; MPPT range: 160–1000 V; MPPT input current — alternating trackers: 5 × (42 A / 36 A); Short-circuit current per MPPT: 50 A; Rated grid voltage: 3/N/PE; 220/380 V; 230/400 V; Rated current at 380/400 V: 189.9 / 180.4 A; Maximum AC current: 189.9 A; Grid frequency: 50 / 60 Hz; Power factor: >0.99; adjustable 0.8 leading to 0.8 lagging; THDi: <3 %; Maximum efficiency: 98.7 %; European efficiency: 98.3 %; Night consumption: <2 W; Individual MPPT currents: 42 / 36 / 42 / 36 / 42 / 36 / 42 / 36 / 42 / 36 A; High-current strings: Up to 21 A according to product range; actual wiring accounts for the corresponding MPPT current; DC polarity protection: Integrated function; Short-circuit protection: Integrated function; AC overcurrent protection: Integrated function; Grid monitoring: Integrated function; Anti-islanding protection: Integrated function; Temperature protection: Integrated function; String monitoring: Integrated function; I/V scanning: Integrated function; Night SVG: Integrated function; DC switch: Integrated function; Surge protection: DC Type II / AC Type II; AFCI 2.0: Optional family equipment according to configuration; PID recovery: Optional family equipment according to configuration; Primary / secondary control: Optional family equipment according to configuration; Integrated AC switch: Optional family equipment according to configuration; PID — operating principle: For PID configuration automatic nighttime recovery; at DC bus <50 V generates 450 V between PV− and earth, with AC active; AFCI — recovery: For AFCI configuration, after DC circuit inspection hold ESC 3 s per manual; User interface: LCD 2 ×20 characters, LEDs and buttons; Main menu: Information / Settings / Advanced Info / Advanced Settings; Operating data: PV voltage and string currents, AC phase voltages/currents, frequency, active/reactive/apparent power, mode and serial number; Energy overview: Today, yesterday, current/previous month, total; day/month/year history; LCD automatic cycling: Power/status every 5 s; information screens every 10 s; Screen lock: ENTER; Alarm history: 100; Warning history: 100; Service information: Running messages, internal temperature, model/firmware, settings history and communication data; Time and addressing: Date/time; addresses 01–99, default 01; Communication: RS485; Wi-Fi / GPRS / PLC optional; Independent channels: RS485-1 / RS485-2; COM1 data logger: USB Wi-Fi/GPRS, shared RS485-1 channel; Monitoring and EPM: Solis logger, PLC and EPM use RS485-1; devices connect according to COM board; Dedicated meter port: Meter A / B; Primary / secondary communication: RS485-3; 3 × RS485 interconnection cable; I/O interface: RSD, emergency stop and generator signal according to design; Four-pole terminal block: 1 A1 IN /2 B1 IN /3 A2 OUT /4 B2 OUT; RS485 — detailed cable: 0.2–1.5 mm²; Ø5–10 mm; RS485 — stripping: Sheath 30 mm / conductor 8 mm; RS485 — summary table / torque: 0.3–4 mm² / 0.6 Nm.

PLC monitoring: Optional system with PLC CCO and logger; Logic control: RJ45:5 Switch_input1 /6 Switch_input2; Logic control — response: When enabled, opening limits output to 0 W within 5 s; Meters and CT ratios: DTSD1352 external CT:300 A/5 A; ADL400:2000 A/5 A; Meter communication wiring: 21 A /22 B → Meter A /B; CT orientation: P2/arrow towards grid; Export metering: Grid-side or load-side meter according to configuration; 24-hour consumption: Grid-side meter with corresponding monitoring; Primary / secondary EPM — capacity: Up to 10 units in supported configuration; equipment and firmware according to design; Primary / secondary EPM — meter: ADL400; menu ADL400C; AC wiring in EPM: 3P_4W /3P_3W; Unbalanced export control: Supported configuration with ADL400, 3P_4W and neutral connected; same phase sequence for all inverters; EPM modes: AUTO-DIO /AutoAcbox /Gen /Grid; Grid / generator power control: GridExp.P /GENMinP; Single generator — interface: 220 V AC →5 V DC adapter →primary inverter I/O; Multiple generators: 2–3 generators via AC source box and primary inverter; External generator controller: Compatible DEIF-controller option according to design; External EPM: Failsafe according to external control; Active and reactive power: Output, reactive power, restore and PF Curve settings; Grid configuration: Grid profile, Grid ON/OFF, power gradients, frequency control, 10-minute voltage, power priority and PCC; User-Def — overvoltage / undervoltage: 220–374 V /110–277 V phase voltage; grid-profile configuration range; User-Def — frequency: OV 50.1–65 Hz /UN 45–59.9 Hz; User-Def — times: Protection response 0.01–300 s; startup/restore 10–600 s according to approved profile; I/V scan — start voltage: 300–1000 V; I/V scan — step / points: 1–100 V /60; Calibration and service: Energy, power and voltage calibration, fan test, HMI/DSP updates and service diagnostics; Dimensions W × H × D: 1014 ×567 ×345 mm; Weight: 96 kg; Ingress protection: IP66; Topology: Transformerless; Cooling: Intelligent fan cooling; Operating temperature: −30…+60 °C; Operating humidity: 0–100 % RH; Altitude: 4000 m; Storage temperature: −40…+70 °C; Storage humidity: 0–100 % RH non-condensing; Package stacking: 4; Mounting position: Vertical or backward tilt up to 15°; Mounting site: Firm fire-resistant wall/rack, airflow and suitable shelter from sun/rain/snow; Mounting clearances: 500 mm above, sides and floor; 1000 mm front; Multiple units — clearances: ≥500 mm; Standard bracket hole spacing: 958 ×369 mm; Ø11 mm; AC-switch variant bracket: 1008 ×369 mm; Ø11 mm; Drilling / bracket torque: ≤90 mm /30–35 Nm; Locking screw torque: 2–3 Nm; Rack attachment: Ø12.5 mm /M10 ×40 /35 Nm; Cable support near ports: 300–350 mm; Lower DC terminals / ground: ≥450 mm; External earthing: Cu 25–50 mm², at least half phase cross-section; M10 lug, 10–12 Nm; DC conductors: PV1-F Cu 4–6 mm², recommended 4 mm², Ø5.5–9 mm; DC connector / stripping / torque: MC4 /7 mm /3–4 Nm; AC conductors — detailed table: Cu 35–240 mm²; recommended 70 mm²; AC conductors — summary table: 50–240 mm²; AC cable diameter: 38–56 mm; recommended 45 mm; AC connection: OT M10 /10–20 Nm; AC stripping: Sheath 300 mm; S2=S1+2–3 mm; Aluminium AC cables: Suitable Cu/Al bimetal lugs according to cable and design; Neutral conductor: Connection according to local grid; 3P_4W with neutral for unbalanced control; Recommended AC breaker: 250 A; STG-4150HA vent valve: 3.5–4 Nm; M7547B-T gland body / nut: 13–16 Nm /15–19 Nm; M2012B gland body / nut: 2.5–3.5 Nm /3.5–4.5 Nm; M1610B gland body / nut: 2–3 Nm /2–3 Nm; Package — inverter / bracket / manual: 1 /1 /1; Package — screws: 2 ×M6 ×12; Package — DC connectors: 20; Complete plant components: PV modules, mounting accessories, protection, cables and, as designed, meter, CTs, logger, EPM or AC source box; Grid standards: G99; IEC61727; EN50549-1/2; VDE4110; Safety: IEC/EN62109-1/-2; EMC: IEC/EN61000-6-2/-4; Estimated delivery: 2–3 days.

[Batterado — SOLIS-S6-GC125K](https://batterado.com/product/solis-s6-gc125k-trifazovy-sitovy-stridac/)