2500 Watt Inverter Wiring Install

Just curious why you were to go to the low voltage block and not straight to the batteries? Is it so when you are not idling you dont run your batteries down to the point the truck wont start?

 

For my 2500 watt I used 4 gauge wire, and my inverter has two hot and one ground (Cobra Inverter) I used all available connections. If it provides them why not use them? I have two inverters in my truck the other is a Cobra 1575 and its wire run is about 13 feet I have never had any trouble out of it. Just always remember to fuse your lines. Mine install manual recommended Buss ANL 250 fuse to be used, it may be me but I thought 250 amps was a little high?

 

I sincerely doubt your low voltage cutoff is rated to flow that many amps. 2500/12=208 amps! The smallest gauge I would run for that would be 1/0. Direct to the batteries will be the only way as that is a large inverter.

 

What if you have two power wires, still 1/0?

 

I would use #1/0. Refer to your instruction manual about the use of both sets of input terminals.

 

Rule of thumb is 1AMP per 1WATT.

I have a 3000watt inverter but only fused it at 250A. That was more than enough to me.
Haven't blown the fuse yet.

I ran welding cable (Softer and flexible) and right to the batteries (using a fuse of course).
This is what Thor actually recommends:

 

I don't know why it would have two inputs really. As stated, read the manual for it to see what the purpose is. You could probably get away with two 4 gauge, but to me running a single 1/0 is easier. One fuse (they aren't cheap), less problems.

 

probably because of the lug size attaching to his inverter, may not be big enough to hook in 2/0 to 1/0

 

Yes...thats the reason.

Hooking up large cables to a small inverter isn't fun.