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RichardG
Admiral

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USA
990 Posts
Initially Posted - 04/06/2017 :  18:17:01  Show Profile
This may be a silly question, but this stuff is hard to get my brain around. I am installing a new Blue Sea circuit panel http://assets.bluesea.com/files/resources/dimensioned_drawing/4352.pdf. I understand this panel requires a negative bus to terminate the ground wires from all the loads, and the negative bus needs to connect to the negative terminal on the back of the panel. Does it matter if the negative wire from the battery is connected to the negative bus, or can it be instead be connected to the negative terminal on the back of the panel? Perhaps a related question is: what purpose does the negative terminal on the back serve? Does it simply act to close the circuit for purposes of lighting the breaker switches? Thus does the breaker only act to break/connect the positive side of each circuit?


RichardG 81 FK/SR #2657
Terminal Island, CA
Edited by - RichardG on 04/06/2017 21:06:22

sethp001
Mainsheet C-25 Tech Editor

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814 Posts
Response Posted - 04/06/2017 :  22:03:05  Show Profile
You can make an electrical connection from the negative on your battery to a negative bus bar or that negative terminal. It looks like the negative terminal is just a nicer connection for the negative lead from your battery, designed to make an easier connection to the negative bus on the panel.


Seth
"Outlier" 1987 Catalina 25 SR/SK/Traditional Interior #5541
"Zoo" 1977 Morgan Out Island 30
"Nomad" 1980 Prindle 16
"Lost" 1988 Catalina Capri 14.2 (sold - yay!)
"Marine Tex 1" Unknown Origin POS 8' Fiberglass Dinghy
https://whichsailboat.com/2014/07/27/catalina-25-review/
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Notice: The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.