Growatt N-G confusion

[timselectric]

Are you familiar with the bluesea 6006 battery switch? It says it's rated for 48 volts. Lithium is up to 58 volts, I contacted bluesea and I was told that I should not use it with lithium due to the higher voltage, they said they are working on a higher voltage switch but I already own several of them now, I see lots of people using and recommending these switches but seems a bit risky, do you think a 48 volt switch that is good for 300 amps would be safe to use for 58 volts?

I wouldn't.

 

[MT off grid]

I wouldn't.

 

[MT off grid]

I didn't think so, sucks I didn't read better when buying them. How about this terrible idea of mine, can I use a light switch to control my ground going to my water main for an easy disconnect switch for going off grid to on grid?

 

[timselectric]

I didn't think so, sucks I didn't read better when buying them. How about this terrible idea of mine, can I use a light switch to control my ground going to my water main for an easy disconnect switch for going off grid to on grid?

Yes
Remembering to flip the switch is about the same as Remembering to hook up the wire.
Just easier.

 

[MT off grid]

Yes

Remembering to flip the switch is about the same as Remembering to hook up the wire.

Just easier.

 

[MT off grid]

So a regular house light switch will handle amd possible ground faults? Wasn't sure how many amps or volts would be possible and if a switch would handle it

 

[timselectric]

So a regular house light switch will handle amd possible ground faults? Wasn't sure how many amps or volts would be possible and if a switch would handle it

It's not ideal. But no worse than the other ground that you are plugging in.

 

[MT off grid]

It's not ideal. But no worse than the other ground that you are plugging in.

 

[MT off grid]

Do you know of any battery switches that would handle 58+ DC volts?

 

[timselectric]

I use 2 pole MCB's.

ASI NDB1-125C125-2, Miniature Circuit Breaker,DIN Rail Mount High Current Circuit Breaker, 125A, 2 Pole, 240Vac, 60 Vdc, C Trip Curve https://a.co/d/33kF9La

 

[MT off grid]

I use 2 pole MCB's.



ASI NDB1-125C125-2, Miniature Circuit Breaker,DIN Rail Mount High Current Circuit Breaker, 125A, 2 Pole, 240Vac, 60 Vdc, C Trip Curve https://a.co/d/33kF9La

 

[MT off grid]

I have a spare breaker that I could possibly use but no way to connect my 2/0 cables to it.

 

[timselectric]

Could use a wire reducing pin.
But a 50a breaker is probably not big enough.

 

[MT off grid]

Crap, forgot its only 50 amps

 

[MT off grid]

Could use a wire reducing pin.
But a 50a breaker is probably not big enough.

 

[MT off grid]

So I know it's not code and probably not safe etc etc etc but, is it feasible That I open up my 220 box where my dryer plugs into and pull a 120 off each leg to feed each inverter so that I have a hardwired connection to supply AC input if absolutely necessary? Obviously I would need to do some power management and not dry clothes while using the grid to charge batteries but it's the only viable option I have at this moment.

 

[timselectric]

That's an option.

 

[MT off grid]

That's an option.

 

[MT off grid]

But not code nor the safest option?

 

[timselectric]

If the wiring is sized correctly. It can be done safely.
And there's no code that says two loads can't share the same feed.