Discuss Why are the two poles of the Hager SPD rated differently in the UK Electrical Forum area at ElectriciansForums.net

I have a Hager surge module here, it states fuses/MCBs can be omitted if the supply fuse is less than 125A. I have it on a 63A HRC fuse though.
 

Reply to Why are the two poles of the Hager SPD rated differently in the UK Electrical Forum area at ElectriciansForums.net

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