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How big is the cable of the photovoltaic area combiner box
Use 4–10 mm2, 600 V insulated cables. Strip 8 mm of cable insulation. Ground the combiner box by connecting it to the inverter. Use the grounding points marked with the Open the combiner box cover. [pdf][FAQS about How big is the cable of the photovoltaic area combiner box]

Connecting to photovoltaic combiner box
Mount the combiner box and secure it with four screws, as shown below. Use 4–10 mm2, 600 V insulated cables. Strip 8 mm of cable insulation. Ground the combiner box by connecting it to the inverter. [pdf]
PV inverter communication connection requirements
Each inverter must be connected to no more than one PV module. The thresholds for the input voltage and the input current of the inverter must be adhered to.. Each inverter must be connected to no more than one PV module. The thresholds for the input voltage and the input current of the inverter must be adhered to.. The inverter must be connected to the local network via a network cable (e.g., via a router). [pdf]
Huawei PV Inverter Installation Instructions
This document describes the SUN2000-115KTL-M2, SUN2000-110KTL-M2, and SUN2000-100KTL-M2 in terms of their installation, electrical connections, commissioning, maintenance, and troubleshooting. [pdf][FAQS about Huawei PV Inverter Installation Instructions]

PV inverter selection rules
Checklist for Choosing an InverterRated Power OutputMaximum PV input powerEfficiencyOperating temperatureFrequency OutputMaximum Open circuit voltage. Checklist for Choosing an InverterRated Power OutputMaximum PV input powerEfficiencyOperating temperatureFrequency OutputMaximum Open circuit voltage. Solar PV inverters in 2024 must interact with the grid (UL 1741), offer more options to meet rapid shutdown (UL 3741), and ease the inclusion of battery storage. [pdf][FAQS about PV inverter selection rules]