Threaded Mode | Linear Mode

06-12-2008, 06:55

Of course, you can run double 4/0 (two 4/0 cables for + and two for -) or get railroad engine cable which is about 4 to 9 times the cross-sectional area of 4/0 and therefore about 1/4 to 1/9 the voltage drop for a given current. If you run two or more parallel runs of 4/0, they each carry 1/2 or 1/3 or whatever fraction of the amperage and have correspondingly lower voltage drops. I've been considering running individual 4/0 from each battery and gathering them at the inverter terminal or a nearby bus-bar.

On Thu, Jun 12, 2008 at 1:39 PM, pgchd <"pgchin@bellsouth.net"> wrote:

I have a 95 42'. Two years ago I needed to replace the inverters,

Xantrex had a sale on 458's 2500W, same size as the Heart OEM's, so I

used them. I contemplated the move to the bay where the tool box is,

curb side, but in the end I used the original location. My "logic"

was I am in there anyway with a "blower" cleaning the batteries,

checking the water level, etc so "cleaning" the inverter box in not an

additional task. 2 1/2 years later no issues and the originals lasted

10 years with no cleaning effort by the prior owner. Also, I am a

"cheapskate" and was able to remove the original cables off the hearts

and reuse on the 458's. The original inverters would have lasted

longer if not for a "dumb move" on my part, user error. I've noticed

on the various for sale websites indeed they made the move about 96

sometime so they do work in the bay location. The 458's are the

"replacements" for the Hearts 2500's and I do not know the difference

between what you have and the 458's....looked at the website and still

can't tell. Anyway my 458 manual says keep the cable length at 10 feet

or shorter, if 10 feet and it is a 3000 Watt unit (I think you said

your is) then cable thickness is 4/0..... a big honkin cable. The

cable guide(owners manual) for the 458's in online so you can double

check me and it lists all wattages, I selected the numbers above based

on what I"think" you said, 3000 watts, you should validate......

getting old! :-)

Pete, Donna, and Lucky bear Chin

95 42' greater Daytona Beach area

--- In "WanderlodgeForum%40yahoogroups.com", "bumpersbird"

wrote:

>

> David

>

> Is that along the out side of the coach?

>

> One problem I have is my inverters are side by side, which adds a

> foot or so to one of the runs. What size cable is on your inverters?

>

> Kurt

> 95 PT-423

> 10AC

>

>

> --- In "WanderlodgeForum%40yahoogroups.com", David Brady

> wrote:

> >

> > I measure 14 ft.

> >

> > David

> > '02 LXi, NC

> >

> > brad barton wrote:

> > >

> > > I don't have my coach with me anymore, either, but my inverters

> are

> > > placed slightly aft of mid-coach so the 20' length might be

> pretty

> > > close.

> > >

> > > Brad Barton 00LXiDFW bbartonwx@

> > >

> > >

> > > ----------------------------------------------------------

> ------

> > > Search that pays you back! Introducing Live Search cashback.

> Search

> > > Now!

> > > <http://search.live.com/cashback/?

> &pkw=form=MIJAAF/publ=HMTGL/crea=srchpaysyouback>

> > >

> > >

> > > ----------------------------------------------------------

> ------

> > >

> > > No virus found in this incoming message.

> > > Checked by AVG.

> > > Version: 7.5.524 / Virus Database: 270.3.0/1498 - Release Date:

> 6/11/2008 7:13 PM

> > >

> >

>