Detailed Technical Specifications
- Maximum PV input power: 10,000 Wp
- Maximum PV input voltage: 1,000 V
- Start-up voltage: 150 V
- Nominal input voltage: 640 V
- MPPT voltage range: 120–980 V
- Number of MPPT trackers / Strings per MPPT: 2 (1+1)
- Maximum input current per MPPT: 16 A / 16 A
- Maximum short-circuit current per MPPT: 20 A / 20 A
- Permissible PV over-installation: 200 % (output overloading up to 110 %)
- Rated AC output power: 5,000 W
- Rated AC output current: 7.6 A (230 V) / 7.3 A (400 V)
- Maximum apparent AC output power: 5,500 VA
- Maximum AC output current: 8.0 A
- Rated mains voltage: 220/380 V, 230/400 V (3/N/PE)
- Nominal frequency / Range: 50 / 60 Hz
- Power factor shift: 0.8 inductive–0.8 capacitive
- Total harmonic distortion of current (THDi): <3 %
- Maximum efficiency: 98.3%
- European efficiency: 97.8%
- Night-time standby power consumption: <3 W
- Protection rating: IP66
- Operating temperature range: -30 to +60 °C (derating above 45 °C)
- Maximum operating altitude: 4,000 m (derating above 3,000 m)
- Relative humidity: 0–100 %
- Typical acoustic emission: <30 dB
- Storage temperature: -30 to +60 °C
- Dimensions (W x H x D): 342 x 434 x 144.5 mm
- Weight: 15.5 kg
- Cooling system: Natural convection
- Communication interfaces: USB / RS485 / DRM / Pocket WiFi (GRI0851-WIFI includes integrated WiFi; GRI0851-SINW without WiFi module) / optional LAN / optional 4G / optional Adapter Box
- Overvoltage / undervoltage protection: Integrated
- DC isolation protection: Integrated
- DC reverse polarity protection: Integrated
- Grid monitoring: Integrated
- DC feed-in monitoring: Integrated
- Back-feed current monitoring: Integrated
- Residual current detection (RCD): Integrated
- Insulation failure protection: Integrated
- Over-temperature protection: Integrated
- Surge protection device (SPD) (DC/AC): Type III / Type III
Performance Data and Efficiency Curves
Conversion efficiency
- Maximum efficiency: 98.3%
- European efficiency (weighted): 97.8 %
- Night-time standby power consumption: <3 W
- Operating noise level: <30 dB
Operating limits
- Operating temperature: -30 to +60 °C (derating >45 °C)
- Altitude at full power: up to 3,000 m
- Maximum installation altitude: 4,000 m
- Minimum start-up voltage: 150 V
- Permissible PV over-installation: 200 per cent
MPPT tracking and energy harvesting
- 2 independent MPPT trackers (1 string each)
- Ultra-wide MPPT voltage range: 120–980 V
- Integrated global MPP scanning for higher annual yield
- Compatible with high-current panels up to 16 A per string
Detailed Applications and Use Cases
Three-phase grid-connected photovoltaic installations
- High-consumption residential installations with three-phase supply (detached houses, homes with air conditioning, industrial appliances)
- Light commercial installations (offices, retail premises, small industrial units) with a three-phase contracted power supply
- Systems without storage to maximise feed-in or instant self-consumption
- Suitable for multiple panel orientations thanks to the 2 independent MPPT trackers
Zero feed-in control and export management
- Integrated export control via an external grid meter (CT meter) to comply with zero-feed-in regulations
- Dynamic real-time adjustment of output power to prevent power feed-in to the grid in environments with distributor restrictions
- Compatible with SolaX Power’s certified zero-injection guide for approval by the distribution network operator
Remote monitoring and management
- The GRI0851-WIFI features a built-in Pocket WiFi module for direct connection to the SolaX Cloud platform without the need for additional accessories
- GRI0851-SINW offers optional connectivity via Pocket WiFi, Pocket LAN or a 4G module
- 24-hour monitoring with production readings, fault alerts and remote firmware updates
- Smart load management (heat pump) via an optional Adapter Box
- Remote configuration and parameter adjustment without the need to visit the site
Compatibility with high-power panels
- Supports string current of up to 16 A per MPPT, compatible with current high-power-density photovoltaic modules (550–700 Wp)
- 200 per cent PV over-installation (DC/AC ratio = 2.0) to maximise the annual capacity factor
- Low start-up voltage of 150 V: power generation from the early hours of the day and under diffuse sunlight conditions
- MPPT range from 120 to 980 V for flexibility in designing strings of different lengths and using different cell technologies
Certifications and Full Regulatory Compliance
Electrical safety standards
- IEC/EN 62109-1 — Safety of power inverters for photovoltaic systems (Part 1)
- IEC/EN 62109-2 — Safety of power inverters for photovoltaic systems (Part 2)
- NB/T 32004 — Technical standard for grid-connected photovoltaic inverters
Electromagnetic compatibility and performance
- IEC/EN 61000 — Electromagnetic compatibility (EMC)
- EN 50530 — Overall performance of grid-connected photovoltaic inverters
- IEC 61683 — Measurement of the efficiency of photovoltaic inverters
- IEC 60068 — Environmental testing (temperature, humidity, vibration)
Grid connection — European and global standards
- VDE4105 — Requirements for connection to distribution networks (Germany)
- EN 50549 — Requirements for generators connected to low- and medium-voltage networks (Europe)
- IEC 61727 — Photovoltaic systems: characteristics of the grid connection interface
- IEC 62116 — Test procedure for insulation monitoring
- AS 4777.2 — Grid connection of energy installations (Australia)
Compatible Components of the X3-Mic Series
This inverter belongs to the X3-Mic series from SolaX Power. Listed below are the complementary components available as separate items to extend the equipment’s coverage.
Warranty extension
- ACC2092 — 5-year extended warranty for X3-MIC-5.0
- ACCC2002 — 5-year warranty extension for X3-MIC-8.0
Techno Sun Professional Technical Support
Specialised technical support for professional installers, including advice on system sizing, commissioning and troubleshooting.
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SolaX Power X3-MIC-5K-G2 5000 W Three-phase
Part number: GRI0851-WIFI / GRI0851-SINW | Three-phase grid-tied inverter
The optimal solution for 5 kW three-phase grid-connected photovoltaic installations in applications requiring maximum conversion efficiency (98.3%), IP66 protection and monitoring flexibility.
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