Piggy-back fuseholders - a right way and a wrong way ...Explore further
2015-8-18u2002·u2002Good thread, I hadn't thought about which way round when I fitted one the other day but there's a really simple way to check which way is correct. Just pull the 'main' fuse from the piggy back module and plug it back in with just the 'accessory' fuse in place. It will only work one way round and that is the correct way.
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