Fuse between solar panels and MPPT controller?

PaulRainbow said:
Should have said;
isolate the controller from the panels before disconnecting the panels batteries
I guess you actually knew that though.
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No I did not realise you meant batteries when you said panels. but I am aware that some controllers require the battery to be connected before the panels.


PaulRainbow said:
No, i mean the device labelled as "PV breaker isolator"
What do you imagine the device is ?
What do you imagine it's purpose is ?
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The symbol on it indicates that it is a two pole circuit breaker. That is an overcurrent protection device but if what you say in #160 is true Victrom say you cannot rely on the information in their manuals .

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VicS said:
The symbol on it indicates that it is a two pole circuit breaker. That is an overcurrent protection device but if what you say in #160 is true Victrom say you cannot rely on the information in their manuals .
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Bum covering statements are present everywhere, that doesn't mean diagrams in manuals were not drawn on purpose by someone who knew what they were talking about, it means there's a trembling lawyer somewhere concerned that someone might die and blame the company. Victron aren't daft, their docs and training are very good.
 
VicS said:
No I did not realise you meant batteries when you said panels. but I am aware that some controllers require the battery to be connected before the panels.
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And consequently require the panels to be isolated from the controller before the batteries. Hence the inclusion of an isolator in the shematic.

The symbol on it indicates that it is a two pole circuit breaker. That is an overcurrent protection device but if what you say in #160 is true
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Are you suggesting i'm lying ?

Victrom say you cannot rely on the information in their manuals .
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That isn't what they say at all.
 
lustyd said:
Bum covering statements are present everywhere, that doesn't mean diagrams in manuals were not drawn on purpose by someone who knew what they were talking about, it means there's a trembling lawyer somewhere concerned that someone might die and blame the company. Victron aren't daft, their docs and training are very good.
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Still waiting for your answers to post #168
 
PaulRainbow said:
And consequently require the panels to be isolated from the controller before the batteries. Hence the inclusion of an isolator in the shematic.
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But the schematic shows a circuit breaker although I must admit I would have expected no more than an isolator.
 
PaulRainbow said:
You are once again mistaken. Neither he, or you, have been able to provide an explanation as to its purpose.

Care to try again ?
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Actually several people have explained it to you, you’re just either choosing not to listen or you don’t understand. Perhaps others have the patience to walk you slowly through it but I’ve given up due to your attitude on this thread.
 
lustyd said:
Actually several people have explained it to you, you’re just either choosing not to listen or you don’t understand. Perhaps others have the patience to walk you slowly through it but I’ve given up due to your attitude on this thread.
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You have no idea what it's purpose is, because you have no idea about solar installations, or indeed electrical installations in general. The idea of you walking me through it's purpose had me falling around in fits of laughter. There are a couple of people here who know why it's there, but you aren't one of them.

You're the one, earlier in the thread, who said there needed to be a fuse, rated at 80% of the cables rated current, next to the controller :):):):):):):)

It's rather pathetic, because Noelex posted a link that explains when/why/how fuses do/no not need to be fitted. Perhaps you need to scroll back and find it. There are some pictures, so you should be able to get a basic understanding.
 
Paul please stop being childish and throwing insults. It’s clear you don’t understand and you’re unwilling to try. You’ve continually told me I’m wrong despite clearly not understanding what I’ve said or why I’ve said it. Several people have tried to explain to you to no avail, including showing you documentation from the vendor. If you truly wish to know then I suggest you speak to Victron directly as we are unable to make progress here.
 
lustyd said:
Paul please stop being childish and throwing insults. It’s clear you don’t understand and you’re unwilling to try. You’ve continually told me I’m wrong despite clearly not understanding what I’ve said or why I’ve said it. Several people have tried to explain to you to no avail, including showing you documentation from the vendor. If you truly wish to know then I suggest you speak to Victron directly as we are unable to make progress here.
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Were the pictures not clear enough for you ? Would it help if they used bigger text ?
 
VicS said:
No I did not realise you meant batteries when you said panels. but I am aware that some controllers require the battery to be connected before the panels.




The symbol on it indicates that it is a two pole circuit breaker. That is an overcurrent protection device but if what you say in #160 is true Victrom say you cannot rely on the information in their manuals .

View attachment 111132
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There is no current rating on the picture as would be indicated on a overload breaker giving the trip current. Also a current time curve class would also be indicated.

That symbol is not the normal symbol for a magnet/thermal overload and why both types.
 
Rogershaw said:
There is no current rating on the picture as would be indicated on a overload breaker giving the trip current. Also a current time curve class would also be indicated.

That symbol is not the normal symbol for a magnet/thermal overload and why both types.
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If you look at the AC distribution Roger, they use the same image!

Victron produce some of these schematics as a example of what could be installed and a basic outline of how that might be achieved. They are not necessarily installation schematics. The schematic in question here isn't from the Victron solar panel manual.
 
Rogershaw said:
There is no current rating on the picture as would be indicated on a overload breaker giving the trip current. Also a current time curve class would also be indicated.

That symbol is not the normal symbol for a magnet/thermal overload and why both types.
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Its the symbol I have found on some brands of circuit breakers ,

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