Solis S5-GR3P20K 20kW Three Phase Grid-Tied Solar Inverter
Solis S5-GR3P20K 20kW Three Phase Grid-Tied Solar Inverter
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Description
Overview
The Solis S5-GR3P20K is a 20kW three-phase grid-tied solar inverter from the Solis S5-GR3P(5-20)K series, a transformerless string inverter range for three-phase sites. The series covers 5kW to 20kW models.
Two MPPTs taking up to four strings, with 32A per tracker, support large modules, and up to 26.6kW of PV can be connected. The inverter supports export power control, and can be registered on SolisCloud by scanning for remote upgrade and control.
Key Features
High PV Input Capability
- Two MPPTs with up to four strings, 32A input and 40A short-circuit current per MPPT
- Up to 26.6kW of PV with an 1100V maximum DC input
- Wide 160–1000V MPPT operating range
Efficient & Robust
- 98.7% maximum efficiency, 98.1% EU efficiency
- IP66 enclosure with intelligent fan cooling
- Rated for -25 to +60°C operation up to 2000m
Protection & Safety
- Integrated DC switch
- DC reverse-polarity, short-circuit, output overcurrent, surge, grid monitoring, anti-islanding and temperature protection
- Optional integrated AFCI 2.0 arc-fault protection
Monitoring & Control
- LCD display
- RS485, plus Wi-Fi or GPRS options (Wi-Fi communication dongle included)
- Scan to register on SolisCloud for remote upgrade and control
Installation & Design
- 20.8kg, 310 x 563 x 219mm housing
- MC4 DC connectors and a quick-connect AC plug
Specifications
| Model | S5-GR3P20K |
|---|---|
| Type | Three Phase Grid-Tied PV String Inverter |
| Topology | Transformerless |
| AC phases | Three |
| Country of manufacture | China |
| Maximum PV array power | 26.6 kW |
| Maximum PV input voltage | 1100 V |
| Nominal PV input voltage | 600 V |
| MPPT voltage range | 160 – 1000 V |
| PV start-up voltage | 180 V |
| Maximum PV input current per MPPT | 32 / 32 A |
| Maximum PV short-circuit current per MPPT | 40 / 40 A |
| Number of MPPTs | 2 |
| Number of PV string inputs | 4 |
| PV connection | MC4 |
| Multi-peak (shade) MPPT scan | Yes |
| Nominal AC output power | 20 kW |
| Nominal AC apparent power | 20 kVA |
| Maximum AC apparent power | 20 kVA |
| Nominal AC output voltage | 230/400 V |
| Nominal AC output frequency | 50 Hz |
| Nominal AC output current | 31.8 A |
| Maximum AC output current | 31.8 A |
| Power factor (adjustable range) | > 0.99 (0.8 leading - 0.8 lagging) |
| Total harmonic distortion (THD) | < 2 % |
| Maximum AC output power | 20 kW |
| Maximum efficiency | 98.7 % |
| European (weighted) efficiency | 98.1 % |
| 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) | Yes |
| Integrated DC switch | Yes (PV2 Switch) |
| Arc-fault protection (AFCI) | Optional |
| Grid monitoring | Yes |
| 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 | 2000 m |
| Protection rating (IP) | IP66 |
| Noise level | < 60 dB(A) |
| Dimensions (W × H × D) | 310 × 563 × 219 mm |
| Weight | 20.8 kg |
| Cooling | Intelligent fan-cooling |
| AC connection | Quick connection plug |
| 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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