[C320-list] Inverter Installation

[Simon Rock]

Opps, not sure where my thoughts were when I did that calc :-(

With this sort of current, you want the inverter close to the battery, to
minimise the length of heavy cable required.

I have a small inverted mounted next to the battery, with the 240V cables
run to a special outlet (its red and labeled "Inverter - 300W Only).
I have read of others that have used a cheap method of combining the
inverter and AC power. They pick up a second hand UPS from ebay. There are
plenty of these available (usually with dead batteries). You wire the boat
battery into the UPS . Just need to be aware of the charging capacity of the
UPS

Cheers

Simon

Simon Rock
Lake Macquarie NSW Australia

Cat375 #54 Rock The Boat
Cat375 #41 Rocket
Cat320 #1163 Rockstar

Experience The Whitsundays
www.cya.com.au <x-msg://1039/www.cya.com.au> 




-----Original Message-----
From: Simon Rock [mailto:simonrock at gmail.com] 
Sent: Saturday, 9 March 2013 7:36 AM
To: 'C320-List at Catalina320.com'
Subject: RE: [C320-list] Inverter Installation

Is this right?
I would have thought....

Assuming you have a 120V outlet at 1200watts, P=VI, so 1200=120 x I,
therefore = 10 Amps out of the inverter.

So it needs at least 10 amps into the inverter, that will convert the DC
into AC. Assuming 90% effiecency, then you will need 11 Amps from the
battery

So if you want to use the cigarette outlet, you would need to check on the
circuit breaker or fuse that is connected to the outlet.
Otherwise, wire it through a separate fuse and outlet.

Cheers
Simon


1200 watts at 12V forgetting efficiency is 100 Amps.

That seems like a lot of amps to pull from the  12V receptacle on the boat
Irv Grunes
2001 #851

On Fri, Mar 8, 2013 at 3:00 PM, Len <aqua5len at gmail.com> wrote:

> I just plug mine into cigar lighter socket on panel.  Works fine.
>
> Len Krane
> AQUA5 #1070
>
> On Thu, Mar 7, 2013 at 1:49 PM, Joseph A Tamucci <jtamucci at comcast.net
> >wrote:
>
> >
> >
> > I just bought an inexpensive  1200 watt inverter (modified sine
> > wave) and want to install it on my 320.  I realize since it's not a 
> > pure sine
> wave, I
> > can't run delicate electronics,  but I expect I can run a TV, 
> > Microwave, low watt hair dryer and other low wattage tools and 
> > appliances with it.  Can anyone advise how to hook it up to my 
> > battery and then to my 120V AC outlets?
> >
> >
> >
> > Thanks,
> >
> >
> >
> > Joe Tamucci,  Andante,  Hull # 619
> >
> >
>