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Old 29-06-2020, 19:52   #16
er9
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Boat: 1980 (Canning) Mariner36
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Re: + Bus Bar question

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Originally Posted by Stu Jackson View Post
They do make bus bars with different size studs.
thanks i just actually ran across one from blue sea.
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Old 29-06-2020, 19:58   #17
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Re: + Bus Bar question

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Originally Posted by sailah View Post
I have a large + bus bar near batteries for distribution of "cable" sized loads. From my parallel battery switch that turns on the loads, I run a small cable to a Blue Seas bus bar with #10 screws. This feeds my always on loads like bilge pumps, stereo memory, USB charger. Since these aren't protect by a breaker I run inline fuses for all of them
thats kind of what i was thinking when i asked the original question because the few items that bypass the distribution panel or breakers all havi inline fuses. im not sure how robust those glass fuses are. the blue sea fuse block looks interesting. might be the solution to use as it keeps all the fuses neat and tidy in one place.
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Old 29-06-2020, 22:08   #18
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Re: + Bus Bar question

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Originally Posted by er9 View Post
thats kind of what i was thinking when i asked the original question because the few items that bypass the distribution panel or breakers all havi inline fuses. im not sure how robust those glass fuses are. the blue sea fuse block looks interesting. might be the solution to use as it keeps all the fuses neat and tidy in one place.
OK, now I understand what you are getting at. I call this a power distribution point. I have two in my engine space, one positive and one negative, both near the batteries. I made my own. One inch wide by 1/4" thick. You can buy silver washed copper at onlinemetals.com. I drilled and tapped for three bolts on each distribution point. Used stainless steel bolts - 1/4 and 5/16 IIRC. Stainless is not a great conductor but the ring terminals are in direct contact with the copper bar so it does not matter. IMPORTANT: Make a plexiglass cover to prevent possible short circuit to nearby grounds.

The only things on the distribution points are heavy wiring going to things like anchor windlass, main circuit breaker panel and a secondary set of circuit breakers. In addition to the main circuit breaker panel the secondary circuit breakers are for HF radio, solar power, wind power, battery charger and inverter - the higher load items that don't go through the main C/B panel.
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Old 30-06-2020, 12:40   #19
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Re: + Bus Bar question

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Originally Posted by er9 View Post
thats kind of what i was thinking when i asked the original question because the few items that bypass the distribution panel or breakers all havi inline fuses. im not sure how robust those glass fuses are. the blue sea fuse block looks interesting. might be the solution to use as it keeps all the fuses neat and tidy in one place.
I use waterproof fuse holders that use the mini blade type. Much better than the glass. Very nice quality and cheap. Littel is an industrial supplier, I use their Intrinsically Safe fuse on my circuit boards I build for explosive areas. You need to buy 5 but still cheaper than a "marine" version and likely higher quality.

This outfit stocks all sorts of things that are useful for a boat. I used the fuse blocks for MEGA fuses for high amp loads, Molex permacrimp terminals, battery lugs, adhesive lined heat shrink. Often you need to buy a minumum but good to stock up on useful items.

https://www.waytekwire.com/item/4648...-Fuse-Holder-/

https://www.waytekwire.com/item/4603...er-with-Cover/
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