Disconnect Between Battery and Inverter Question

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BowerBoy9

New Member

Joined

May 24, 2024

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SoCal

• May 28, 2024

• #1

I am using a Blue Sea 6006 disconnect and a 100a fuse (usually covered) between my single 2800ah LiFePO4 battery and a 2000w inverter (see photo)
Does this seem adequate? Overkill? Does that very short positive cable present any downside in your opinion?
Thanks in advance.
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Danke

Solar Wizard

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Apr 5, 2022

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36N 93W

• May 28, 2024

• #2

Short is good, less resistance. Just not too short where bends cause stress on the connections.

 

Brucey

Solar Wizard

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Upstate NY

• May 28, 2024

• #3

What voltage is the system?

 

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BowerBoy9

New Member

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May 24, 2024

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SoCal

• May 28, 2024

• #4

12v

 

Brucey

Solar Wizard

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Upstate NY

• May 28, 2024

• #5

So at max load the inverter could be pulling close to 200A. Depends how heavily you have it loaded. Ideally that would be a class t fuse.

 

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scrubjaysnest

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Florida and Arizona

• May 28, 2024

• #6

I used a 300 amp MBRF between the switch and 3000 watt inverter. Limits the inverter draw. We also watch number of appliances in operation. Max current to date seen is 60 amps from the batteries with another 25 from the solar panels.

 

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time2roll

Solar Wizard

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• May 28, 2024

• #7

BowerBoy9 said:

12v

Click to expand...

I would be at 250 amp and 2/0 wire. 200 amp and 1/0 wire might be fine if the loads are closer to 1500w max.
Short wire is always better.