Question about Xantrex Technology DC to Dual-Outlet AC Power Inverter

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Curcuit dc protection

I have xpower inverter 3000 what size breaker for two 12 volt batteries in parralel would be advised (west marine 650 amp hr batt.)

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For your inverter to charge two 12 volts
650 amper hour, it will require a current
between 7amp s to 15amps. So i will
recommend a 60amps circuit breaker.
The best type should be such that
allows a firm contact so that there is no
voltage drop. An example is any type
that will need you to use a cable log.
Any connection via cable logs provides
a very firm contact.Note that a lose
contact will reduce the run time of you
inverter and will make the charging
time to be longer than expected.

Posted on May 06, 2010

Testimonial: "thank you, for the feed back,info is helpfull the more you research, it becomes clearer."

  • francois clermont Jan 18, 2013

    breaker must have a DC rating if not it maybe will not be able to protect

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Dc lo keeps blinking on the fridge and lights go low in rv, power converter middle light is blinking green


The battery is not being charged OR is no longer accepting a charge.

The inverter does not charge the battery. An inverter consists of components that first convert the battery's low (12) volt "direct current" (DC) power used to power automotive devices to a higher (120) volt "alternating current" (AC) power that is required by nearly all household appliances to operate properly.

The charging of the battery occurs when either the RV's engine is running and spins the alternator, etc. OR when connected to another charging device - whether it is permanent or portable.

With the RV engine running, there should be about 13.5 - 15 volts, DC on the battery posts or terminals. This voltage is coming fromt he RV alternator and since it is greater than the 12 volt battery, "charges" the battery. If you use a portable charger - that is part of a generator, or plugs into a power port at a camp site, etc. this will charge the battery.

When none of these things is happening, the battery voltage will slowly drop. Once it is at ~10 volts, it is "dead" and will need to be recharged.

The battery will no longer accept a charge if a "cell" inside it has "opened" or "shorted", or if the battery is at the end of its useful life. The battery state can be checked quickly by any mechanic.

I hope this helps & good luck!

Nov 19, 2013 | Electrical Supplies

1 Answer

It does not seem to be charging the batteries. 12 volt lights work good for about 2 days then go dim until I put a charger on the batteries and bring them back into working order. The battery connect...


The Parallax 7155 converter should not require battery support for any 12 volt load amperage that is less than the maximum amperage capacity of the converter. A standard RV incandescent 12 volt lamp draws about 1.5 amperes for each bulb. With the battery disconnected and other 12 volt loads off, turn on lamps (not fixtures) and calculate the number of bulbs which can be turned on. If you run out of lamps, turn on vent fans etc. The idea here is to try to get to 55 amperes of DC load if possible without going over 55 amperes. At a sustained DC load of about 25-30 amperes or higher, the fans should cycle on continuously after about 5 -10 minutes. Lamp brightness should be normal and the measured voltage from the converter should be above 13 volts if under 55 amps of DC load. If the voltage drops with only a few lamps on, a converter issue would be likely.

Diagnostic tests an RV technician should make would be to:
1. Disconnect the battery system.
2. With the converter system powered on, measure the DC amperage with a DC ammeter capable of reading at least 60 amperes DC from the blue lead at the DC fuse panel terminal VCC.
3. Measure the DC voltage at terminal VCC and DC ground.
4. Record both readings.
At any DC load amperage less than 55 amps, the voltage should be above 13.0-13.2 volts DC. This method should take out all guesswork and confirm a DC converter section issue or not.

Nov 04, 2013 | Parallax Power Supply Parallax 7100 Series...

1 Answer

I have a question about a freedom marine 25. If the voltage into the inverter charger is not at 125 volts will the system not charge properly?


I don't know if i'm not reading your question right...but an inverter is an equipment that takes 12 Volts DC and transforms it into 120 AC. The input is a 12 VDC not 125 V.

May 29, 2013 | Boating

1 Answer

I am installinga 4548 inverter. At 4500 watts, it puts out approximately 20 amp per phase. My generater that will feed the charging current for the batteries will put outapproximately 28 amps. Is the...


Let just wait a minute. You have an inverter that is rated at 4500 watts. This spooky. The inverter has a three phase input/three phase output? What is the inverter going to be used for?

Next question. What type of batteries are you using and what is the voltage/current in series or parallel? What will be the total voltage you will producing with the batteries? What is the total current of the batteries.

Another question? What is the voltage of the 28 amps? If it going to dump 28 amps across some batteries that rated at 12 volts and 1400 amp/hrs. For 12 volt batteries with a total of 1400 amps. What you will need approx 14 to 14 1/2 DC and with 28 amps across the batteries for charging these batteries. The batteries will be gone in about 1 hour. Boil all the water out of them. When a battery starts to boil it release water with hydrogen gas (the gas is very explosive and dangerous).

You also don't have a regulation circuit to limit the amount of current depending on the needs of the batteries. Also, you don't have a trickle charger to keep the batteries fully charge when the batteries are idle.

You will also need DC regulated charger that will keep the voltage 2-4 volts above you battery voltage. Without this voltage above the batteries voltage it will not charge those batters. Batteries need to forced to except a charge that why voltage above the source voltage. If you can check the voltage on your car/truck with a 12 volt system. While engine is running the voltage across the battery will be 13.8 to 14.1 volts. Now, the current limiter is the alternator it has a regulator built into it for stabiizing voltage and current went the batteries require more current but it limited by alternator regulator
Now, to get more current out of the alternator the regulator will supply dc voltage to the stator of the alternator generator more current. More dc voltage is supplied by the regulator but the dc voltages is limit to about 24 volts. Another limiting factor is the alternator copper windings diameter---larger diameter more current, small diameter less current. Utilities systems use big mega watts generators. The maxi um dc voltage for these three phase generator would like 500 to 800dc volts for peak to peak output. There is a simpler way of doing this.

You need to rethink everything here. Also, I can help you if you supply the needed information.
I truly wish you luck in your electrical endeavors. GB you. stewbison

Aug 22, 2011 | Refrigerators

3 Answers

I'm dumb. Can I hook an inverater to my generator and produce more enegry than my generator produces???


Please understand that the generator produces power from fuel with an engine wheras the invertor is one which genrerates power from a stored battery using the principle of frequency switching a DC source to induct and produce AC.
Now you can have an uninterupted power supply setting with the invertor backed up by the generator so that when the battery voltage goes down you can start and charge the invertor and also supply the extra energy .
the ratings of both must also be considered.

Sep 25, 2010 | Electronics - Others

1 Answer

Inverter


Are you wanting to install circuit breakers on the DC (battery) side? If so, you won't need them to protect the unit as it is already fused. But, it would be a good idea to install them as close to the battery so that if a wiring fault develops in te cable going to the inverter, it would be protected as well.

For the AC side, breakers are sized according to the wire size, not the capacity of the inverter. But, you can always use a smaller size if you want to try and protect the inverter from overloads as well. Your inverter is rated at 1000 watts, which is a bit over 8 amps of AC current. Use a 10 amp circuit breaker, and don't use smaller than 16ga wire for short distances. Use larger guage wire (12ga is 20amp residential requirement, 14ga is 15amp residential requirement) for the longer runs.

This inverter is not designed for a permanent install, its not intended to be run continuously. There are inverters designed for this, you can find an idea of product selection at rv suppliers, alternative energy shops, etc.

Jun 24, 2010 | Black & Decker 1000w Power Inverter

3 Answers

My aims 2000 pure sine wave inverter is pluged to 2 240amp/h 6 volt batteries. When | plug in a 1800 watt hairdrier i get an alarm as if the batt. were to low. they are new and at full charge. is the load...


Your inverter has a peak of 3000 watts rating and should power that hair dryer. Make sure your batteries are in good shape. The inverter can only put out what it takes in. 1800 watt demand on the inverter requires 1800 watts from the batteries.

Jul 14, 2009 | Inverter Aims Pure Sine Wave Power...

1 Answer

Burnt out


internal failure possibly on power side, lower than 300A fault current so unit could not trip i/p protection and as fault was post ac section, continued to burn internally.
it just broke
no breakers tripped out so it kept drawing current until the fault burnt away.


maybe this is what happened, need to know a lot more info to change hypothisis


Jun 01, 2009 | Vector VEC056D 2500 Watt Power Inverter...

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