Inverter question

[Jmad]

Hey guys I found the manual for the inverter I have questions about, first off I could have sworn it was a pure sine wave inverter, I was really disappointed this weekend when I looked at the box and seen it wasn’t,I have no idea how I didn’t see that, considering I used it all summer and was so happy it was a pure sine, anyways nothing I can do to change that. I am going to upgrade it to a 1500 pure soon enough I guess, but this one will do for my usage now. My question is still about the wire gauge, I went out and bought 4/0 wire and terminals, and this weekend I will be building a box like Will did, I have all the fusing and such rdy to go.So I found the online manual and have read some reviews about this inverter and have mixed reviews, regardless it is what I have to use at this moment. I’ll attach the screen shots of the specs and what the manual recommends. They call for 6guage am I over guaging and will my over gauge be bad if the internal wire gauge inside the inverter is smaller? Also what do u guys think of this inverter as a whole? My uses are for my rev for led lighting charging phones and laptop maybe mocrowave,

Thanks for hanging on and taking the time to read, much appreciated

 

[kenkoh]

I'm new like you, just learning. I made this chart for my own building reference maybe you can use it. Check the math, read Will's book. I'm no expert. - CHART

 

[Rbertalotto]

You can not "Over Gauge" your wire...Bigger is always better up to a point. It won't hurt anything but you might not realize any better current transfer if you go really big......If it calls for 6g and you are using bigger 4g......Good For You! But since you are going such a short run, if I understand you are mounting the inverter on the battery box with very short runs, then the 6g would have been fine. If you are running the wire any appreciable length, then you are better off with the 4g.......

 

[Jmad]

I'm new like you, just learning. I made this chart for my own building reference maybe you can use it. Check the math, read Will's book. I'm no expert. https://www.evernote.com/shard/s545...196d0f6d9bc1/4ae074551a50c0c24409fdfa8150e112

That will come in handy, thanks

 

[Jmad]

You can not "Over Gauge" your wire...Bigger is always better up to a point. It won't hurt anything but you might not realize any better current transfer if you go really big......If it calls for 6g and you are using bigger 4g......Good For You! But since you are going such a short run, if I understand you are mounting the inverter on the battery box with very short runs, then the 6g would have been fine. If you are running the wire any appreciable length, then you are better off with the 4g.......

Ok, well I went with the huge wires 4/0 or is it 0/4 the welding type wire so I went extremely overkill I guess eh

 

[Rbertalotto]

MAN! That is a FANTASTIC chart! Why can't the manufactures do something like that to make it so easy...NICE!

 

[Jmad]

MAN! Tsyhat is a FANTASTIC chart! Why can't the manufactures do something like that to make it so easy...NICE!

I agree it’s really well done

 

[kenkoh]

MAN! That is a FANTASTIC chart! Why can't the manufactures do something like that to make it so easy...NICE!

I'm a simple mind so I need simple charts.

 

[Rbertalotto]

There is a big difference between 4g and 4/0 wire.......4/0 is nearly twice as thick as 4g.......4/0 is about 1/2" in diameter...HUGE!

 

[Jmad]

That’s why I asked in the thread

 

[Jmad]

My post said I used 4/0 and was that ok

 

[Jmad]

You shoulda seen my eyes when the copper terminals arrived in the mail...... wow these wires are gonna be hugeee

 

[Rbertalotto]

Oops...My mistake.....I thought you went out and bought 4G wire....

Well, 4/0 is overkill....but it will look macho!

 

[Jmad]

Oops...My mistake.....I thought you went out and bought 4G wire....

Well, 4/0 is overkill....but it will look marcho!

I figured buy it once and then when I upgrade my inverter it’s one less thing to buy or worry about, I went with breakers as well as a fuse for the battery, can u under fuse if ur not planing on running high loads? I believe I have a 250amp breaker for battery line currently, Intil my bolt on fuse arrives like I said really I’m only using for less then 100w of led lights which will used not very long and charging devices

 

[kenkoh]

My post said I used 4/0 and was that ok

Will says 175a fuse is good with 1500w inverter.

 

[Jmad]

This one is a 3000w whichim confused because I read reviews and they say each receptacle is 1000w which totals 3000w
I thought it would be 3000w from each? I’m pretty excited to build this thing, this weekend I will be doing it, it’s cool to be making the wires and all I’m pretty excited.

 

[kenkoh]

This one is a 3000w whichim confused because I read reviews and they say each receptacle is 1000w which totals 3000w
I thought it would be 3000w from each? I’m pretty excited to build this thing, this weekend I will be doing it, it’s cool to be making the wires and all I’m pretty excited.

Here is a chart others more experienced recommended to me. https://www.altestore.com/howto/recommended-inverter-cables-sizing-and-breakers-or-fuses-a62/

 

[Rbertalotto]

The fuse is there to protect the wiring. It won't protect the inverter. The inverter will usually have some type of internal protection.
The fuse (or circuit breaker) needs to be small enough to blow quickly should the wire short out, but big enough so that the inverter doesn't "pull" too much current through it and it blows. Most inverter manufacturers can help with this once you tell them the size and length of wire you are using.

 

[Rbertalotto]

That AltE chart is good, but it doesn't take into account the length of the wire.

 

[Jmad]

This inverternal has its own fuses as well, so I’m gonna assume I’ll be ok with the additional fusing as well, I’m sure I’ve over sized everything to be on the safe side. Now it’s time Time to save up for a few battle Borns