Blue Sea fuse block with glass fuses

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Godwin

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I want to use this Blue Sea fuse block and am unsure how to wire it. I checked the Blue Sea website and found nothing similar. I think this is an older unit that's no longer made. Anyone familiar with this type of BS fuse block and how to wire it. I did not find any symbols to indicate 12+ or ground but I think the studs with nuts may be for that.

IMG_4741.webp
 
well, the busbar on the left seems to be directly connected to the left side of all the fuses, so that would be a common that you could use either for the + or - depending on what you want to do. Then all the screws above the yellow fuse poppers in the pic could be connected to various circuits that you want to protect. The bus bar on the RHS is less obvious. Presumably it is not connected to the fuses. Maybe it is intended in case you want to join several wires before connecting to a fuse. But a quick check with a continuity tester will tell all...
 
If other blue sea fuse blocks are anything to go by, the right side busbar is intended to be a ground bar. Likely the stud on the lower right corner is the main ground. Check for continuity between those two components and the fuses/left side busbar to make sure.
 
^ Yup.
I don't think that it's a great design TBH. Having the individual + connectors right above and possibly touching the - bus bar and screws is asking for trouble.
 
I assume you are going to use it in an older vehicle that uses glass fuses already? i.e. your spare fuse collection for trail use will all be glass...

cheers,
george.
 
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