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05-22-2018, 09:55 PM
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#1
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Member
Join Date: Dec 2017
Posts: 99
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12v layout
I will be installing 2 6V 225 mAh batteries on my Imagine 2800BH trailer with 30A 120v
I have solar panel kit 200w renogy with Renogy Voyager 20a charger.
I have a 2000W puresine xantrex inverter.
My inverter will be at about 3 of 4 feet cable lenght wise from my batteries.
1)What size wire I need to joint the 2 6V batteries together?
2) what size wire between my batteries and the inverter?
3) I need a breaker fuse between my batteries and my inverter, what size?
4) Do I also need a catastrophic fuse? If so why and what size?
What else am I missing?
Should I change the TT battery charger by a better one?
Any recommendation?
Where do I install that? I need to bypass the original one?
TIA
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05-22-2018, 10:03 PM
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#2
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Senior Member
Join Date: Jan 2015
Location: Prescott, Arizona
Posts: 3,564
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__________________
'04 Newmar MADP, 1100w of solar, Rubicon toad
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05-22-2018, 10:11 PM
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#3
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Senior Member
Join Date: Apr 2011
Location: Powell River, B.C.
Posts: 31,269
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Didn't the inverter installation instructions cover most of your questions?
Battery interconnect cable should match the size of those to the inverter.
The systems I've seen have only the fuse , last one I helped replace was 200 AMP. Class T, But I've also seen 300 AMP used on 2000 Watt set ups.
__________________
99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
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05-22-2018, 10:27 PM
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#4
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Member
Join Date: Dec 2017
Posts: 99
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Quote:
Originally Posted by Skip426
Didn't the inverter installation instructions cover most of your questions?
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Ah ah..maybe..havent open the box yet...just gadering component 🤤
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05-22-2018, 10:33 PM
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#5
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Senior Member
Join Date: Feb 2018
Posts: 1,283
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I used 4/0 wire on all the parts of the wiring involving my 2200 watt inverter. I used a 400 amp fuse. My inverter can surge to 6600 watts.
I disconnected my original converter/charger. I installed a new breaker panel with a 30 amp breake that connected to the external TT-30P power cable and a 30 amp breaker that goes to the input of the inverter transfer switch. I added a pair of 20 amp breakers for my Lithium chargers so they wouldn't be downstream from the inverter transfer switch. The output of my inverter transfer switch goes to the original trailer breaker panel.
You should consider a battery monitor with shunt. I used the bluetooth Victron BMV-712.
__________________
Jeff--
Arctic Fox 22G w/1440 watts solar/GMC2500HD Double Cab with Leer Cap w/740 watts solar
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05-23-2018, 05:44 AM
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#6
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Member
Join Date: Dec 2017
Posts: 99
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Look like they recommend 0 size cable
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05-23-2018, 05:46 AM
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#7
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Member
Join Date: Dec 2017
Posts: 99
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Now trying to understand the difference with table 2 and 3. For my fuse I go with the cranking amps of thr battery or the ANL fuse for my Prowatt SW 2000 (250 A)?
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05-23-2018, 01:09 PM
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#8
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Community Moderator
Join Date: Sep 2011
Location: Between the Oceans
Posts: 8,017
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on my coach, the factory installed 2000w inverter, and all cable connections among batteries and from/to inverter are 2/0. the t type fuse is 300a. i assume you probably better use 2/0.
__________________
Steven & Polly
2000 Country Coach Intrigue 40' ISC 350
2018 Ford Explorer 4WD
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05-23-2018, 03:01 PM
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#9
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Senior Member
Join Date: Jul 2014
Posts: 35,317
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Quote:
Originally Posted by windman
Look like they recommend 0 size cable
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Isn't your example for a 600 watt inverter ?
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05-23-2018, 04:26 PM
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#10
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Member
Join Date: Dec 2017
Posts: 99
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Quote:
Originally Posted by twinboat
Isn't your example for a 600 watt inverter ?
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I was referencing at the note below the table
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05-23-2018, 05:17 PM
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#11
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Senior Member
Join Date: Jul 2014
Posts: 35,317
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OK, but if you use to light a huge cable, you can expect low voltage alarms and then shutdowns, when using the inverter to near full capacity.
My 1000 watt Xantrex has 2 gauge and my 2000 watt Xantrex has 4-0 gauge. Would have used 2-0 but already had the 4-0.
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