Inverter cable size.

[Bobbybass]

Sorry...double posted

Edited November 4, 2018 by Bobbybass
Accidental double post

[dor]

How far between the batteries and the inverter?

[rusty69]

Is this thread duplicate. Im sure WotEver replied to this earlier 

[Bobbybass]

Thanks for your reply. About 2.5 metres.

[Sea Dog]

Yep - now he's gonna need 2 sets of cable which will cost twice as much.  Expensive schoolboy error!

 

I'd go with 70mm. 

[rusty69]

1 minute ago, Sea Dog said:

Yep - now he's gonna need 2 sets of cable which will cost twice as much.  Expensive schoolboy error!

 

I'd go with 70mm. 

Long or csa? 

[Sea Dog]

1 minute ago, rusty69 said:

Long or csa? 

Ha! You little tinker!

 

[Bobbybass]

Hi all... Really sorry I screwed up submitting the post twice because of my silly old iPad thing. 2.5 meter run from the batteries. 1500w continuous..3000w peak. 12 volt.

[Boater Sam]

Biggest that you can get into the terminals. Spend the money on the fattest, do it only once.

[Bobbybass]

4 minutes ago, Boater Sam said:

Biggest that you can get into the terminals. Spend the money on the fattest, do it only once.

Thank you. Can I ask.....I am home over winter and was going to buy this on eBay and do the terminals myself. I find the specifications confusing as the cables are specified by various numbers etc. How can I tell what is a fat inner core and match it to the corresponding terminal .

[Richard10002]

5 minutes ago, Boater Sam said:

Biggest that you can get into the terminals. Spend the money on the fattest, do it only once.

Surely, if you size them correctly in the first place, you only ever do it once? I have 95mm2 for my 2500W with a 4.5m distance, but there is no sense in getting 95mm2 when 50mm2 will do, or is there?

[WotEver]

Just now, Bobbybass said:

Thank you. Can I ask.....I am home over winter and was going to buy this on eBay and do the terminals myself. I find the specifications confusing as the cables are specified by various numbers etc. How can I tell what is a fat inner core and match it to the corresponding terminal .

You’re looking for 70mm², probably most easily obtained from a welding supplies company. 

1 minute ago, Richard10002 said:

Surely, if you size them correctly in the first place, you only ever do it once? I have 95mm2 for my 2500W with a 4.5m distance, but there is no sense in getting 95mm2 when 50mm2 will do, or is there?

Fractionally smaller voltage drop with everything working well within its design parameters. Nothing wrong with over-engineering high current cabling. 

[rusty69]

1 minute ago, Bobbybass said:

Thank you. Can I ask.....I am home over winter and was going to buy this on eBay and do the terminals myself. I find the specifications confusing as the cables are specified by various numbers etc. How can I tell what is a fat inner core and match it to the corresponding terminal .

Its usually specified as standard sized cross sectional area with corresponding terminals to suit. I bought mine from a welding supplier online , a cheap crimper and some glue lined heat shrink sleeving.

[cuthound]

You can use reducing lugs to connect large cables to smaller terminals,.

 

https://www.etscablecomponents.com/ets-copper-pin-terminals-dsp.html