super dave Posted June 6, 2017 Report Share Posted June 6, 2017 (edited) Anyone know where I can get some 4 gauge wire? I just need some for my 2000w inverter. Thought ct or princess Auto would have but thickest I could find was 10. Thanks. Edited June 6, 2017 by super dave Link to comment Share on other sites More sharing options...
mike rousseau Posted June 6, 2017 Report Share Posted June 6, 2017 Lowes might They had bigger than 10 I know that Link to comment Share on other sites More sharing options...
dave524 Posted June 6, 2017 Report Share Posted June 6, 2017 (edited) Years ago I ran a pretty big amp on a CB that drew a lot of amperage, found it cheaper to cut the ends off a set of booster cables to wire it up than to buy the same gauge wire by the foot. edit: Shops that do high power automotive stereo installations will have it too, but not cheap. Edited June 6, 2017 by dave524 Link to comment Share on other sites More sharing options...
Canuck Posted June 6, 2017 Report Share Posted June 6, 2017 Any marine supply store will have it. They have it at our marina service department. Check the installation instructions though. For long runs to the batteries you need heavy gauge. I think you want 4/0. That is not the same as 4 gauge. Link to comment Share on other sites More sharing options...
Fisherman Posted June 6, 2017 Report Share Posted June 6, 2017 Anyone know where I can get some 4 gauge wire? I just some for my 2000w inverter. Thought xt or princess Auto would have but thickest I could find was 10. Thanks. Go in the back, they have 4/0 welding cable which is far more flexible and better stranding. I use it on my inverter for the trailer. Link to comment Share on other sites More sharing options...
DRIFTER_016 Posted June 6, 2017 Report Share Posted June 6, 2017 Head to your local car audio shop. Bestbuy also has large gauge wiring kits in their car audio section. Link to comment Share on other sites More sharing options...
super dave Posted June 6, 2017 Author Report Share Posted June 6, 2017 Yes you guys are right. I need 4/0 not 4 gauge. I'm completely new to this. Looks like I have some more researching to do. Link to comment Share on other sites More sharing options...
DRIFTER_016 Posted June 6, 2017 Report Share Posted June 6, 2017 Yes you guys are right. I need 4/0 not 4 gauge. I'm completely new to this. Looks like I have some more researching to do. Check with any solar power companies as well. They supply large gauge wire for connecting battery strings and inverter connections. Link to comment Share on other sites More sharing options...
Canuck Posted June 6, 2017 Report Share Posted June 6, 2017 Keep the distance from battery to inverter as short as possible. If its on a boat you may want to go with marine tinned cable. Its not that much more than plain copper and won't corrode. You lose voltage with distance and then its not efficient. You will draw down your battery faster if the cable is too long. The 110 side is not a problem for distance. 4/0 is expensive too so shorter is cheaper. You will also need to install a large fuse on the positive feed as close to the battery as you can. Probably a 250 amp fuse. I know it sounds high, but the current draw of a 2000w inverter on surge of 3000w is 3000/12v= 250 amps. When I installed my Xantrex inverter on my boat I spent as much on wire, connections and fuses as I did on the inverter. Link to comment Share on other sites More sharing options...
Garnet Posted June 6, 2017 Report Share Posted June 6, 2017 Whitby Marine has everything. Link to comment Share on other sites More sharing options...
super dave Posted June 6, 2017 Author Report Share Posted June 6, 2017 Thanks guys. Appreciate all the helpful tips. Good call on the fuse as well. Link to comment Share on other sites More sharing options...
DRIFTER_016 Posted June 6, 2017 Report Share Posted June 6, 2017 Keep the distance from battery to inverter as short as possible. If its on a boat you may want to go with marine tinned cable. Its not that much more than plain copper and won't corrode. You lose voltage with distance and then its not efficient. You will draw down your battery faster if the cable is too long. The 110 side is not a problem for distance. 4/0 is expensive too so shorter is cheaper. You will also need to install a large fuse on the positive feed as close to the battery as you can. Probably a 250 amp fuse. I know it sounds high, but the current draw of a 2000w inverter on surge of 3000w is 3000/12v= 250 amps. When I installed my Xantrex inverter on my boat I spent as much on wire, connections and fuses as I did on the inverter. Ditch the fuse and pick up a circuit breaker like this. They come in many sizes from about 20 amp to 300 amps or so. Your local car audio place should be able to get you one. Link to comment Share on other sites More sharing options...
super dave Posted June 7, 2017 Author Report Share Posted June 7, 2017 Hey Dave. Thanks. Just ordered on amazon. Link to comment Share on other sites More sharing options...
super dave Posted June 8, 2017 Author Report Share Posted June 8, 2017 I ended up picking this up at princess Auto. Sharing this in case others need as well. https://www.princess...ot-/A-p8228041e Link to comment Share on other sites More sharing options...
DRIFTER_016 Posted June 8, 2017 Report Share Posted June 8, 2017 I ended up picking this up at princess Auto. Sharing this in case others need as well. https://www.princess...ot-/A-p8228041e Link to comment Share on other sites More sharing options...
Fisherman Posted June 8, 2017 Report Share Posted June 8, 2017 4/0 welding cable by the foot on sale, half price. Excellent. Link to comment Share on other sites More sharing options...
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