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  1. #19
    Don't worry about the difference between 30A and 32A. Neither of them will trip for at least a few seconds even at 50-60A load, so the difference is academic. However, they still trip faster than a cartridge fuse - due to a teensy-weensy little assembly error when I made some recent changes to my control box, I put an earthed bolt through the incoming mains cable. 32A ring main MCB tripped pretty much instantly, but the 13A fuses in mains cable and extension lead stayed intact. I suppose the MCB saved the fuses!
    Last edited by Neale; 25-05-2021 at 08:00 AM.

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