Power Inverter ?
 

I have a 1200 watt nominal / 2400 watt peak, power inverter that I
would like to install about 12 feet from the battery that will power
it. My question is what gage wire will I need for a 14 foot run to the
inverter? The unit was supplied with 5 feet of 4 gage. Is 4 gage
really necessary, it seems like overkill to me? Thanks, Mike Howard

Power Inverter ?
 

Power Inverter ?
 

Power Inverter ?
 

I would go even larger than that. with a 28' run I would not go any smaller
than #0. Inverters do not like low voltage and #2 will drop the voltage
almost half a volt at normal draw and can handle a maximum of 178 amps which
is to small to handle the 200 amp peak. #4 is fine for 100 watts over a
total of 10' (out and back) but not for 28'. For the 10' run (20' total) to
my Prosine 2.0 Xantrex recommended 450mcm. I scrimped and used #0000 and
will just have to be careful about getting over 2kW.

--
Glenn Ashmore

I'm building a 45' cutter in strip/composite. Watch my progress (or lack
there of) at: http://www.rutuonline.com
Shameless Commercial Division: http://www.spade-anchor-us.com

"dazed and confuzzed" wrote in message
. ..
wrote:

I have a 1200 watt nominal / 2400 watt peak, power inverter that I
would like to install about 12 feet from the battery that will power
it. My question is what gage wire will I need for a 14 foot run to the
inverter? The unit was supplied with 5 feet of 4 gage. Is 4 gage
really necessary, it seems like overkill to me? Thanks, Mike Howard

I'd use #2.

--
“TAANSTAFL”
__________________________________________________ __________________________

"A prudent man foresees the difficulties ahead and prepares for them;
The simpleton goes blindly on and suffers the consequences." - Proverbs
22:3
__________________________________________________ __________________________

Power Inverter ?
 

You have to use a larger gage wire to that distance.
I would suggest to find a way to install the Inverter close to the source.

wrote in message
ps.com...
I have a 1200 watt nominal / 2400 watt peak, power inverter that I
would like to install about 12 feet from the battery that will power
it. My question is what gage wire will I need for a 14 foot run to the
inverter? The unit was supplied with 5 feet of 4 gage. Is 4 gage
really necessary, it seems like overkill to me? Thanks, Mike Howard

Power Inverter ?
 

On 10 Dec 2006 11:34:01 -0800, wrote:

I have a 1200 watt nominal / 2400 watt peak, power inverter that I
would like to install about 12 feet from the battery that will power
it. My question is what gage wire will I need for a 14 foot run to the
inverter? The unit was supplied with 5 feet of 4 gage. Is 4 gage
really necessary, it seems like overkill to me? Thanks, Mike Howard

Gauge it for whatever AC devices you're going to run off it. That's
all it will draw. Also decide if you're going to use your inverter
with the engine running or not.
I found the cheaper Xantec units regard 13.2vdc as the nominal
voltage, which is bull****. You don't find this out until you get it
home. 12.6vdc is pretty normal on a boat that's not running and 12v is
more like it half the time. My $70 1kw Xantec puts out 98vac, not real
healthy for some AC devices. I had to crush the "low voltage" piezio
alarm with a pair of pliers. A real converter starts at about $400 and
goes on up to the moon. Happy sailing.

Power Inverter ?
 

If you are expecting a peak load of 2400 watts, the input current at 12
VDC will be about 200 Amps. If I recall correctly, the ampacity of 4
guage is only 100 amps indicating you should go to at least 2 guage. you
might also consider running 1/8" x 1" aluminum strap. As far as reading
the output voltage of the inverter, a normal VOM will work fine for a
sine wave inverter. To get the proper reading for a square wave or
modified sine wave inverter you would need a true rms reading voltmeter.

BS

ray lunder wrote:
On 10 Dec 2006 11:34:01 -0800, wrote:

I have a 1200 watt nominal / 2400 watt peak, power inverter that I
would like to install about 12 feet from the battery that will power
it. My question is what gage wire will I need for a 14 foot run to the
inverter? The unit was supplied with 5 feet of 4 gage. Is 4 gage
really necessary, it seems like overkill to me? Thanks, Mike Howard

Gauge it for whatever AC devices you're going to run off it. That's
all it will draw. Also decide if you're going to use your inverter
with the engine running or not.
I found the cheaper Xantec units regard 13.2vdc as the nominal
voltage, which is bull****. You don't find this out until you get it
home. 12.6vdc is pretty normal on a boat that's not running and 12v is
more like it half the time. My $70 1kw Xantec puts out 98vac, not real
healthy for some AC devices. I had to crush the "low voltage" piezio
alarm with a pair of pliers. A real converter starts at about $400 and
goes on up to the moon. Happy sailing.

Power Inverter ?
 

mscres wrote:
You have to use a larger gage wire to that distance.
I would suggest to find a way to install the Inverter close to the source.


But not too close if you're running wet cell lead acid batteries; the
fumes during charging are corrosive to electronics. And not in the
engine compartment, as it gets hot (and sometimes wet) in there. That
5' length of wire supplied by the manufacturer sounds about right.

If you're regularly running 200 amps to the inverter you've got at
least 500ah of battery capacity, right?

Power Inverter ?
 

I just want to ask if it is already have for sale POWER INVERTER(12vDC
converted to 220vAC, to run the AC appliances in the philippines? Where
it can be buy in the Philippines?

Please reply asap.

Thank you.

Power Inverter ?
 

I just want to ask if it is already have for sale POWER INVERTER(12vDC
converted to 220vAC, to run the AC appliances in the philippines? Where
it can be buy in the Philippines?

Please reply asap.

Thank you.