All ActivityMost RecentMost LikesSolutionsRe: Inverter help...blew 2 fusesThanks again ah64idRe: Inverter help...blew 2 fuses ah64id wrote: tulegit wrote: ah64id wrote: That might not be of adequate size, and why the combined 60A fuses blew. The inverter will draw 72A if it's making 750w. As it was mentioned you should run at least 4AWG to the batteries with a 100-125A fuse inline. The cable from the panel to the battery is 4AWG and the cables from my inverter to the panel is also 4AWG. I'll put in the fuse. Where's the best place for that, by the battery or would anywhere behind the panel be OK? Behind the panel is fine, you need to make sure that it's wired so you aren't pulling thru the DC panel fuses or they will keep popping. I see. I won't wire it through the panel then. Can I disconnect the cables that runs from the battery to the panel and connect that to the inverter and then another cable from inverter back into the panel?Re: Inverter help...blew 2 fuses ah64id wrote: That might not be of adequate size, and why the combined 60A fuses blew. The inverter will draw 72A if it's making 750w. As it was mentioned you should run at least 4AWG to the batteries with a 100-125A fuse inline. The cable from the panel to the battery is 4AWG and the cables from my inverter to the panel is also 4AWG. I'll put in the fuse. Where's the best place for that, by the battery or would anywhere behind the panel be OK?Re: Inverter help...blew 2 fuses ah64id wrote: That's great, now let's check into making sure the inverter is getting the proper DC power. How is it wired? I ran the + and - cables from inverter into the panel where the + and - of the converter was connected. I place the inverter behind the panel so that was easier than running all the way to the front to the battery.Re: Inverter help...blew 2 fuses@ah64id Just finished wiring the 20A/TV+outlets to the inverter and everything works like a champ! I ran the A/C for 10 minutes no problems. I didn't have a plug to connect the 15A/outlets yet but I don't foresee any problems. Your solution is perfect. Like you mentioned, this application will limit me to 750W inverted power...which is way more than I will ever need to charge phones/tablets and watch TV. The A/C and microwave are the only high wattage appliances I ever use and those are not running through the inverter so 1500W shore power in not an issue. I connected the convertor back and left the breaker off. If I need fast charging of the batteries, then switch the breaker to the APC750 off and switch the convertor breaker on. When done, reverse and I'm back in action. THANKS FOR YOUR HELP AS WELL AS OTHERS WHO HAS HELPEDRe: Inverter help...blew 2 fuses ah64id wrote: The fact that the TV and outlets are on a 20 is interesting. Anyhow, not a big deal. Ensure you don't have AC power to the camper, and I would disconnect the 12V side as well. Rewire the 30A Main how it was. Pull the 3 wire connection for the 20A TV+Outlets and 15A Outlets On the end of each of those add a male 15A plug (ensure you don't mix up the hot/neutral/ground... google can help), each of those will plug into the outlets on the inverter (you might need an extension cord based on mounting location, if you do I would make sure its 15A rated and tape the connections). Like I mentioned this will limit you to 750W inverting and 1500W shore power, ensure your loads don't exceed that. Then on the 15A outlet circuit breaker add a 3 wire that has a 15A female plug on it long enough to plug the inverter. Relabel this 15A breaker APS750. Now you can rewire the converter, AC and DC. Leave this breaker OFF if the 15A APS Breaker is ON. This will let you charge the batteries faster than the APS does if needed. It's that simple.. just realize you will probably have to switch the fridge to "GAS" and you have the ability to run more power than your inverter can handle. GOT IT! Actually very simple when you explained it. Thanks! I'll be setting it up tonight. I'll let you know how it works out.Re: Inverter help...blew 2 fuses LittleBill wrote: you can also catch the unit on fire and burn yourself alive. maybe try a smaller project first before you go to the big boys wasn't the plug on the inverter hard wired? isn't it a nema 15 end? inverted or not, the unit is rated 750w regardless if its inverting or passing through power. i am assuming you cut the cord in half and used the one end to wire it back into the panel. the significant wire size difference should have been slightly obvious the unit was not designed for this Actually you are incorrect. AC pass through is 1500W "When connected to an AC power source, the APS750 can provide up to 1500 watts continuous power." Thanks for chiming in but I'll be taking the advice other big boys who have been nothing but helpful. Good DayRe: Inverter help...blew 2 fuses ah64id wrote: tulegit wrote: What if I want more than one 15amp circuit to be powered by the inverter? I have outlets all over the toyhauler that we use to charge phones/tablets. Very easy. It appears that the APS750 has a male plug for input power and then 2 female 15A receptacles correct? I will add that you WILL NOT have a full 15A availability to all the outlets. On Inverter power you will have 8A to share and on shore power you will have about 12A to share. Take a look at your AC breaker box. You should have the following 30A Main breaker 20A A/C Breaker 15 or 20A Microwave Breaker 15A General 15A General If it looks like that things will be fairly easy. Let me know, if it doesn't take a photo. The only thing that might cause issues is where the fridge draws it's AC power from, but that's not any more of an issue that switching the fridge to "GAS" from "AUTO". So take a peek at your panel and report back. This should be a fairly easy fix. I also have an idea on how to keep the converter in the mix for faster charging while boon-docking, as it would take 5 hours at a full 20A output to get from 50-90, which won't happen. You're correct. 30-main 20-a/c 20-tv + outlets 20-Microwave 15-outlets 15-convertor Inverter: 1 male input. 2 female outputRe: Inverter help...blew 2 fuses LittleBill wrote: not to mention you must have made a dead man cord to tie this back into the main distribution panel. your rolling the dice not really understanding how this works and hacking this together Thats why I'm here asking for advice and learning. Can't learn if you don't try.Re: Inverter help...blew 2 fusesthat inverter is rated 750 watts continuous 1500 surge. your ac probably uses somewhere around 2500 watts on start up.--actually the AC started up just fine. you have the whole trailer wired through it , didn't it have a standard plug on it?--Yes but I made some wires to work withit transfer switch doesn't handle that kind of load. should be obvious with the type wire you removed, should be much thicker.--I didn't remove any wires your option minus returning it, is to put the inverter on a branch circuit. the unit you bought is not really designed for this. this was for much smaller stuff since the unit is only really rated 750 watts, which is not even half of a single 15 amp 120v circuit (1800w)--I believe 750W is inverted power which is plenty more than I need to charge phones and run the TV
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