How to install 3000W pure sine wave inverter?

[canadian_ranger]

Not a good idea. Here's a picture of what I use with my 3000 watt inverter

Noted, and message received! ?

What all’s going on in that photo, just for my education?

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[Tom_C]

Not a good idea. Here's a picture of what I use with my 3000 watt inverter

Ha! Well. There you have it.

 

[TN Ranger]

Ha! Well. There you have it.

Yeah if it's 3000 watts of 120 volts AC its gonna draw about 300 amps of 12 volt DC to make it. You will need a substantial amount of batteries to power it. This has about 600 amp hours. Figure out the anps you are gonna pull out of your 120 volts and then multiple by 10 to figure you dc load. I'm pretty sure it's more than you want to pull off your Ranger's battery. you could get by with 2 deep cycle batteries just wont last as long. But could get you by. If you are only using it for short periods maybe one of those box deals would probably serve you fine.

 

[TN Ranger]

Noted, and message received! ?

What all’s going on in that photo, just for my education?

That's 6 lithium batteries with a 265 amp aux alternator and a 30 amp solar charger. This rig is meant to go off grid for days without a gen. There is a 3000watt Victron inverter/charger. It has a 30 amp shore inlet to keep charged will plugged in.

 

[Tom_C]

Yeah if it's 3000 watts of 120 volts AC its gonna draw about 300 amps of 12 volt DC to make it. You will need a substantial amount of batteries to power it. This has about 600 amp hours. Figure out the anps you are gonna pull out of your 120 volts and then multiple by 10 to figure you dc load. I'm pretty sure it's more than you want to pull off your Ranger's battery. you could get by with 2 deep cycle batteries just wont last as long. But could get you by. If you are only using it for short periods maybe one of those box deals would probably serve you fine.

Interesting. I know enough ohms law to figure stuff out on a cocktail napkin, but I knew there was a lot more black magic happening behind the scenes.

 

[TN Ranger]

Interesting. I know enough ohms law to figure stuff out on a cocktail napkin, but I knew there was a lot more black magic happening behind the scenes.

I've been wiring tour buses and motorhomes since 98. I came from residential wiring but do have an EET degree. We have a small company in TN. We were just approached by Prevost (a Canadian bus company) about building a line of motor coaches for them. We build for a few lease companies that provide these for artists. Covid has forced us to do some other stuff being that no tours have been happening now for a while. Fingers crossed though. Some buses have been leaving out so hopefully we will be back to normal real soon.

 

[egilbe]

4/0 gauge wire, but its expensive. I'll link a pretty good resource so you can educate yourself on it

https://www.explorist.life/?s=3000w+inverter

https://www.mobile-solarpower.com/

Both sites have youtube videos, too. I have a 200ah LifePo4 battery, but it's not for anything over 1280 watt inverters. It was failry inexpensive, $850. But the BMS for the battery is not strong enough for the amps for an inverter that's any larger. Its only rated for 100 amps. For a 3000 watt inverter, you really need to go to 24v or 48v sytems.

 

[TN Ranger]

I've been wiring tour buses and motorhomes since 98. I came from residential wiring but do have an EET degree. We have a small company in TN. We were just approached by Prevost (a Canadian bus company) about building a line of motor coaches for them. We build for a few lease companies that provide these for artists. Covid has forced us to do some other stuff being that no tours have been happening now for a while. Fingers crossed though. Some buses have been leaving out so hopefully we will be back to normal real soon.

View attachment 85360

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4/0 gauge wire, but its expensive. I'll link a pretty good resource so you can educate yourself on it

https://www.explorist.life/?s=3000w+inverter

https://www.mobile-solarpower.com/

Both sites have youtube videos, too. I have a 200ah LifePo4 battery, but it's not for anything over 1280 watt inverters. It was failry inexpensive, $850. But the BMS for the battery is not strong enough for the amps for an inverter that's any larger. Its only rated for 100 amps. For a 3000 watt inverter, you really need to go to 24v or 48v sytems.

You can go with a 12volt system bit wiring must be proper size. You are correct with 4/0. If you do go 24 or 48 it lowers you amp draw which makes it more affordable for the wires

 

[Trigganometry]

For the cost of just the wire you could just about get to the Honda generator Priceline ?

 

[CO2Ranger]

Thanks for this! So, in short: Ranger battery -> battery isolator -> high quality secondary battery -> inverter. And would you put a fuse on the secondary battery as well or is that overkill?

Since no one answered this directly. Yes, you absolutely need a fuse at the second battery. The fuse's job is to blow long before the wire catches fire. Always fuse as close to the power source as possible. Good luck with your project!

 

[TN Ranger]

Since no one answered this directly. Yes, you absolutely need a fuse at the second battery. The fuse's job is to blow long before the wire catches fire. Always fuse as close to the power source as possible. Good luck with your project!

Absolutely! I would it fuse at both ends. Within 12 to 18 inches of each battery. 3000 watt will be way over kill though. Way expensive in materials. There is a company I use that's awesome in helping people out. Inverter Sales and Service. Look them up ask for PJ or Jordan. It's not always what you know, but who you know. Good luck.

 

[DukeCanBuildit]

Wow - that sure seems like a lot of effort and expense. If you move ahead with it, all the best. If you decide against it, I recommend the following 2-part system...

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[GTGallop]

I have seen 3000W Pure Sine Waves installed in a vehicle before. But they were Semi Tractor Rigs or Big Diesel RV's. Those have a 24 volt system and usually an extra battery system.
3000W / 12v = 250 Amps
3000W / 24v = 125 Amps

And those inverters are usually placed within 3 to 4 feet of the battery system.

If you put this in your bed, you are looking at $3/foot for the red wire and $3/foot for the black wire for about 10 feet = $60 in cable plus additional batteries, plus a battery management system, plus connectors, grommets, fuses, and all of the bits and specialty tools to work with this.

Just get a generator.

 

[VoodooRanger]

Have you looked into a Bluetti AC200P portable power bank? 2000wH/2000w with 4800w Surge. I do not have that model, but their AC50S/500wH. I figured the power bank can be used for your coffee, plus be potable enough to use anywhere incase of emergency.

 

[TN Ranger]

Here's our typical 2800 watt inverter set up

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