Solis S5-GC40K-AU 40kW Three Phase Grid-Tied PV Inverter, 4 MPPT
Solis S5-GC40K-AU 40kW Three Phase Grid-Tied PV Inverter, 4 MPPT
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Description
Overview
The Solis S5-GC40K-AU is a 40kW three-phase grid-tied string inverter from the Solis S5-GC(25-50)K-AU series, designed for 3/N/PE 230/400V, 50Hz connection. The series covers 25kW to 50kW models, including 40kW and 50kW HV versions; this is the 400V 40kW model.
Four MPPTs at 32A per tracker take up to eight strings and up to 53.2kW of PV, suiting multi-facing roofs. The series supports 24-hour load consumption monitoring.
Key Features
High PV Input Capability
- Four MPPTs and up to eight strings, 32A input and 40A short-circuit current per MPPT
- Up to 53.2kW of PV with an 1100V maximum DC input and 180V start-up voltage
- Wide 200–1000V MPPT operating range
Efficient & Robust
- 98.7% maximum efficiency and 98.3% EU efficiency
- IP65 enclosure with intelligent fan cooling for -25 to +60°C operation up to 4000m
Protection
- Integrated DC switch (PV2) with DC and AC Type II surge protection
- Reverse polarity, short-circuit, output over-current, grid monitoring, anti-islanding and temperature protection
- Optional integrated AFCI 2.0 and nighttime PID recovery
Monitoring & Control
- String-level monitoring, smart I-V curve scanning and multi-peak scanning
- LCD and RS485 as standard, with optional Wi-Fi or GPRS
- 24-hour load consumption monitoring
Installation & Design
- 40kW / 40kVA output at 58.0A rated grid current
- MC4 DC connectors and OT AC terminal
- 42.1kg, 647 x 629 x 252mm housing
Specifications
| Model | S5-GC40K-AU |
|---|---|
| Type | Three Phase Grid-Tied PV String Inverter |
| Topology | Transformerless |
| AC phases | Three |
| Country of manufacture | China |
| Maximum PV array power | 53.2 kW |
| Maximum PV input voltage | 1100 V |
| Nominal PV input voltage | 600 V |
| MPPT voltage range | 200 – 1000 V |
| PV start-up voltage | 180 V |
| Maximum PV input current per MPPT | 32 A |
| Maximum PV short-circuit current per MPPT | 40 A |
| Number of MPPTs | 4 |
| Number of PV string inputs | 8 |
| PV connection | MC4 |
| Multi-peak (shade) MPPT scan | Yes |
| Nominal AC output power | 40 kW |
| Nominal AC apparent power | 40 kVA |
| Maximum AC apparent power | 40 kVA |
| Nominal AC output voltage | 230/400 V |
| Nominal AC output frequency | 50 Hz |
| Nominal AC output current | 58.0 A |
| Maximum AC output current | 58.0 A |
| Power factor (adjustable range) | > 0.99 (0.8 leading - 0.8 lagging) |
| Total harmonic distortion (THD) | < 3 % |
| Maximum AC output power | 40 kW |
| Maximum efficiency | 98.7 % |
| European (weighted) efficiency | 98.3 % |
| Standby / night consumption | < 1 W |
| Anti-islanding protection | Yes |
| Reverse polarity protection | Yes |
| Short-circuit protection | Yes |
| AC output over-current protection | Yes |
| Surge protection (SPD) | DC Type II / AC Type II |
| Integrated DC switch | Yes (PV2 Switch) |
| Arc-fault protection (AFCI) | Optional |
| Grid monitoring | Yes |
| String monitoring | Yes |
| I-V curve scan | Yes |
| PID recovery | Optional |
| Over-temperature protection | Yes |
| Communication interfaces | RS485 / Wi-Fi (optional) / GPRS (optional) |
| Wi-Fi | Optional |
| Display | LCD |
| Operating temperature | -25 – 60 °C |
| Maximum relative humidity | 0 – 100 % |
| Maximum altitude | 4000 m |
| Protection rating (IP) | IP65 |
| Noise level | ≤ 60 dB(A) |
| Dimensions (W × H × D) | 647 × 629 × 252 mm |
| Weight | 42.1 kg |
| Cooling | Intelligent fan-cooling |
| AC connection | OT terminal |
| Safety standards | IEC 62109-1 / IEC 62109-2 |
| EMC standards | IEC 61000-6-1 / IEC 61000-6-2 / IEC 61000-6-3 / IEC 61000-6-4 |
| Grid-connection standards | AS/NZS 4777.2:2020 / IEC 62116 / IEC 61727 / IEC 60068 / IEC 61683 / EN 50530 |
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