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Old 17-06-2020, 10:30   #331
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Re: Illustrated Guide to Solar Installations on Boats

They are good. I like the controllers, just a few nigiling things. Like the screws being zinc plated so any moisture in the air will eventually rust them.

The terminals can only accept 6mm2 wire max, and are difficult to access unless mounted high up.

And yes I said earlier, they can only really be run to 80% capacity before they start to melt.

Still, good gear, and the updated app that allows them to network and one to be the master, works well.
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Old 17-06-2020, 11:26   #332
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Re: Illustrated Guide to Solar Installations on Boats

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Originally Posted by Roshni View Post
Hi
Replacing 5x 85 w panels (faulty old)with two 320W panels.
Have a Victron MPPT controller 100 30.
Do I need larger controller.
Could I use same controller if used 2 * 250 w panels.
Want to use as much of present wiring as possible. Many suppliers wanting me to do multiple controllers but would then need significant cabling.
Thanks for help.
As posted you will need two of the 100/30 controllers. An alternative if you wish to keep the wiring the same is one 100/50 controller.

You can over-panel a Victron controller but you would only get 30 amps max out of a 100/30 no matter how large the solar array. My preference is to not work the controller too hard as they do get hot.

As far as wiring a properly crimped connector makes wiring Victron controllers easy.
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Old 18-06-2020, 18:58   #333
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Re: Illustrated Guide to Solar Installations on Boats

I've used ferrules on my cabling to help fit inside the victron screw terminals, for larger gauge wire. It worked pretty well.
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Old 18-06-2020, 19:06   #334
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Re: Illustrated Guide to Solar Installations on Boats

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Originally Posted by aybabtme View Post
I've used ferrules on my cabling to help fit inside the victron screw terminals, for larger gauge wire. It worked pretty well.
I have ferrules for wires from 14 gauge to 6 gauge. 10 gauge and larger for solar. Much better than bare wire.
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