The correct cross section information for the SPD is indicated in the product datasheet:
10mm² mini to 35mm² max for rigid (solid) copper cable
10mm² mini to 25mm² max for flexible copper cable (with or without ferrule)
The cross section information in the Instruction Sheet ref. EAV9665901 is not correct.
The Instruction Sheet (EAV9665901) will not be updated because that product is nearing End-Of-Life and will be replaced.
10mm² mini to 35mm² max for rigid (solid) copper cable
10mm² mini to 25mm² max for flexible copper cable (with or without ferrule)
The cross section information in the Instruction Sheet ref. EAV9665901 is not correct.
The Instruction Sheet (EAV9665901) will not be updated because that product is nearing End-Of-Life and will be replaced.