AMAZON VENTED OUTDOOR ENCLOSURE 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]
Outdoor installation requirements for outdoor energy storage cabinets
NFPA 855 only permits residential ESS to be installed in the following areas:Attached garagesDetached GaragesOn exterior walls at least 3 ft (914 mm) away from doors or windowsOutdoors at least 3 ft (914 mm) away from doors or windowsUtility closetsStorage or utility spaces [pdf][FAQS about Outdoor installation requirements for outdoor energy storage cabinets]