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Old 04-15-2007, 05:32 PM   #21
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cool, right on. I went ahead and got waffer style 300 amp fuses. I saw some ceramic ones for like 60 bucks, but didn't see why they were 60 bucks. I got two of the 300 amp waffer inline fuses for 8 bucks.

I still don't know what size shunt I need to use, or what size the individual circuit breakers need to be.

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Old 04-15-2007, 06:49 PM   #22
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The shunt for an ammeter should come with it or atleast be specified in the directions.

Size the breakers for the draw that's going to be on them. Look at the tags on the back of the appliances for the draw given either in amps or watts. Just divide the watts by 120 to get the amperage. Chances are most circuits are going to be 15 amps. If you have an AC you might need a 20 amp or larger and will likely want to get a slow-trip type breaker that can handle the start up surge. If nothing else you can go talk to someone KNOWLEDGEABLE at a local store. The 20 year old kid at Home Depot probably won't have a clue, but the 60 year old guy should.
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Old 04-16-2007, 05:54 PM   #23
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Looks good. I see a set of fuses after the big 300 watton the positive leg after the batteries, before the inverters. I don't think that is necessary to have two fuses in a row like that.

-Richard
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Old 04-16-2007, 06:23 PM   #24
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kewl, I'll take those out. I think I had those in there before I put the 300 amper in.

Thanks
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Old 04-17-2007, 12:10 AM   #25
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however, please double check any advice you recieve from a forum as you just never know who is giving it.

-Richard
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Old 04-17-2007, 06:05 PM   #26
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understood. I'm consulting some master electricians before I implement. Regarding the ammeter with shunt, what size ammeter / shunt would ya'll suppose I need?
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Old 04-17-2007, 09:05 PM   #27
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I bought a battery monitor, the Tri Metric 2020, I think the shunt was 500 amps. It tells you everything about amps coming and going, volts high and low and percentage of charge. There are others out there also. I think the price was about $225. It is expensive but I would not be without it. It is very cool to always know exactly what the batteries are doing.
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