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Old 17-04-2012, 18:30   #1
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1500 W 12V Real Sine Wave Inverters?

I need a simple (no charger, just inverter) 1500W pure sine wave inverter. Not modified sine, but pure sine. The actual load will be 1000-1200 watts, so I'm figuring a rating of 1200-1500 continuous duty is what I want to shoot for, among other things to keep some motor tools happily ignorant of their power source.

I've heard some comments about problems with Xantrex equipment but a lot of the alternatives seem to be unreviewed units from obscure Chinese sources.

Anyone had a unit like this for some time, and have some comments about how well it has or hasn't worked out?
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Old 17-04-2012, 18:41   #2
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Victron or mastervolt. You will not be disappointed. Poorer yes

Dave
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Old 17-04-2012, 19:15   #3
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Re: 1500 W 12V Real Sine Wave Inverters?

I have one of these. It's great if you don't need load sensing start.
It heats my water tank (1kw) no problem and runs our Vitamix.
I've put 1600 watts continuous load on it and it doesn't break a sweat.
I put my oscilloscope on it and the waveform stays a near perfect sine wave regardless of load.
And no, I don't have any financial ties, just a happy camper.

OSP 1500W Pure Sine Wave Power Inverter DC-AC 3000 Watts Peak (759681010234) | eBay
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Old 17-04-2012, 19:45   #4
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Re: 1500 W 12V Real Sine Wave Inverters?

Wow, the OSP seems competitively priced. Hearing that you've already put a scope on it gives me great faith that the waveform is real. It looks like they've kept the price down by omitting the remote control, volt meters, usb port, fans, gfi...just the bare ones at a bare bone price. The ">80% efficiency" makes me wonder, I think most of the higher priced units claim ~90%, no? That could be significant to me as well.
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Old 17-04-2012, 20:01   #5
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Re: 1500 W 12V Real Sine Wave Inverters?

Do not hesitate a second to buy these:


They even have conformal coating of the PCB. I tried to kill one (stupidity) and failed because they knew some weirdo would do what I did and they put additional safety measures in the design to limit damage to just some non automatic fuses inside the unit.

I have a 400W and a 1500W version, love them.

ciao!
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Old 17-04-2012, 20:13   #6
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Re: 1500 W 12V Real Sine Wave Inverters?

No mention of UL458, which would be nice, and no mention of anyplace to buy one from, either! No google hits for sellers, no seller contacts or "buy" option on the home web page. good thing I didn't want to buy one NOW NOW NOW.

Who did you pry yours loose from?
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Old 17-04-2012, 20:30   #7
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Re: 1500 W 12V Real Sine Wave Inverters?

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Originally Posted by hellosailor View Post
No mention of UL458, which would be nice, and no mention of anyplace to buy one from, either! No google hits for sellers, no seller contacts or "buy" option on the home web page. good thing I didn't want to buy one NOW NOW NOW.

Who did you pry yours loose from?
I have these seen sold with Mastervolt labels and a different paint job etc. They are everywhere once you keep an eye on them. They are also in all the West Marine stores: http://www.westmarine.com/webapp/wcs...5720832&cid=cj


Nick.
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Old 18-04-2012, 07:49   #8
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Re: 1500 W 12V Real Sine Wave Inverters?

Mastervolt's web site shows different equipment.

West has a nice racket going there, steep pricing, price match guarantee, but they're alos keeping those catalog pages out of web indexes. And since Sinergex doesn't come up with ANY competitors in web searches or any referals from their site, I guess that makes them a highly profitable "private" label for whoever does sell them. From the outlet shown I'm guessing yours is a not a US 120V model.
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Old 18-04-2012, 08:48   #9
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Re: 1500 W 12V Real Sine Wave Inverters?

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Originally Posted by hellosailor View Post
Wow, the OSP seems competitively priced. Hearing that you've already put a scope on it gives me great faith that the waveform is real. It looks like they've kept the price down by omitting the remote control, volt meters, usb port, fans, gfi...just the bare ones at a bare bone price. The ">80% efficiency" makes me wonder, I think most of the higher priced units claim ~90%, no? That could be significant to me as well.
I haven't run numbers, but with the hot water element load for a half hour the heat output from the inverter was insignificant.
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Old 18-04-2012, 13:17   #10
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Re: 1500 W 12V Real Sine Wave Inverters?

Do you have so much battery capacity that you can use it to heat hot water? you should use your battery for air conditioning also? Are you plugged in to the shore? Im sure you were just testing it.
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Old 18-04-2012, 14:45   #11
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Re: 1500 W 12V Real Sine Wave Inverters?

I have 320 watts of solar, a BlueSky MPPT controller, LIFePo4 Battery bank (200aH) Aerogel (Cryogel) insulation on the fridge box built from scratch, a keel cooled BD 35 compressor with smart control thermostat, all LED lighting, and the extra insulation from the above build used to replace the hot water tank insulation.
No, I'm not plugged in and haven't been since the first of the year, I just balanced my electrical needs.
In the PNW, we don't need air conditioning.
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Old 18-04-2012, 15:04   #12
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Re: 1500 W 12V Real Sine Wave Inverters?

I still have my Trace 2012, it is a bit over 20 years old now.
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Old 18-04-2012, 17:27   #13
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Re: 1500 W 12V Real Sine Wave Inverters?

Your right, it sounds like a well thought system.
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Old 18-04-2012, 18:39   #14
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Re: 1500 W 12V Real Sine Wave Inverters?

Quote:
Originally Posted by hellosailor View Post
Mastervolt's web site shows different equipment.

West has a nice racket going there, steep pricing, price match guarantee, but they're alos keeping those catalog pages out of web indexes. And since Sinergex doesn't come up with ANY competitors in web searches or any referals from their site, I guess that makes them a highly profitable "private" label for whoever does sell them. From the outlet shown I'm guessing yours is a not a US 120V model.
Yes mine are 120V but I didn't buy them from West Marine. I don't remember where I bought them anymore... either Defender or Amazon.com

ciao!
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Old 18-04-2012, 20:00   #15
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Re: 1500 W 12V Real Sine Wave Inverters?

Neither of them carries the brand anymore, Nick. Maybe West bought the exclusive US distribution rights.<G>
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