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12-07-2014, 01:44 PM
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#1
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Senior Member
Join Date: Sep 2011
Location: Denver Metro Area
Posts: 333
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600 Watt Pure Sine or 800 Watt Modified Sine?
I have an opportunity to acquire either a xantex power watt 600 watt pure sine wave inverter OR an 800 watt Cobra modified sine inverter. It will be used for tv, laptops, phones, a small fan and a small vacuum and hooked directly to the a battry bank with less than 2 feet of wire . Given the choice, what would you choose and why?
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Traveling whenever possible with DW, 3 kids and "Tate" the mut dog. 1999 Minnie Winnie 3F430V
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12-07-2014, 01:53 PM
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#2
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Senior Member
Winnebago Owners Club
Join Date: Jun 2013
Location: Full-timer/volunteer w/SOWERS
Posts: 3,958
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Quote:
Originally Posted by Bondad
I have an opportunity to acquire either a xantex power watt 600 watt pure sine wave inverter OR an 800 watt Cobra modified sine inverter. It will be used for tv, laptops, phones, a small fan and a small vacuum and hooked directly to the a battry bank with less than 2 feet of wire . Given the choice, what would you choose and why?
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Always opt for pure sine wave. Motors hate MSW and the inverter often dies when it encounters a motor. Make certain the vac does not draw more that the inverter can deliver. Besides, MSW inverters put out "dirty" power and that is why they cost less. You get what you pay for.
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Rick & Melissa Young, 2011 Itasca Meridian 40U, Frtliner XCL, Cummins ISL 380HP/DEF, Allison 3000 MH, 2014 Honda CR-V, SMI AF1, Blue Ox, EEZ TPMS, TruCenter steering control
Servants On Wheels Ever Ready. Best job we ever paid to do . (full time volunteers)
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12-07-2014, 01:53 PM
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#3
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Senior Member
Join Date: Nov 2011
Posts: 601
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For the sensitive equipment that you are going to run, I would go with a pure sine.
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Jim and Darlene Wright
plus Ryder,Poodle and
garbage disposal cross
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12-07-2014, 02:43 PM
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#4
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Senior Member
Workhorse Chassis Owner
Join Date: Jun 2003
Location: Palisade CO
Posts: 3,588
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I went with the Xantrex ProWatt SW 600 pure sinewave inverter. My use is similar to yours except I don't use a vacuum cleaner on it.
The 540 watts was more than enough for my application.
I had about an 8 foot run to and from the battery and used 4 gauge cable. A higher wattage unit would have required a larger wire.
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Clay WA5NMR - Ex Snowbird - 1 year, Ex Full timer for 11 years - 2004 Winnebago Sightseer 35N Workhorse chassis. Honda Accord toad.
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12-07-2014, 02:56 PM
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#5
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Senior Member
Damon Owners Club Workhorse Chassis Owner
Join Date: Mar 2009
Posts: 24,024
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Well since you want to use it for the TV. I would go with the Pure Sine Wave,, but.. that said... The MSW MIGHT work.
The other consideration is this. You mentioned a clock and a small vacuum.
The Clock may or may not keep proper time on the MSW (Some run fast, like 3 times fast) and the vacuum may draw more power than the True Sine wave can provide.
In fact, that small vacuum may need a serious kick in the starter current and be beyond both of them.
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Home is where I park it!
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12-07-2014, 03:43 PM
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#6
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Senior Member
Join Date: Jul 2014
Posts: 35,446
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My Dell laptop power brick didn't like the modified sine wave inverter, It got hot. After I changed to a Pure sine wave, it ran cool like before.
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12-07-2014, 05:02 PM
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#7
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Senior Member
Fleetwood Owners Club Ford Super Duty Owner
Join Date: Jun 2012
Location: SoCal
Posts: 15,749
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PSW always technically preferred over MSW. That said, a MSW can be less capital cost and get a job done. I run computers, TV, microwave, sewing machines, etc. from MSW units.
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Vince and Susan
2011 Tiffin Phaeton 40QTH (Cummins ISC/Freightliner)
Flat towing a modified 2005 Jeep (Rubicon Wrangler)
Previously a 2002 Fleetwood Pace Arrow 37A and a 1995 Safari Trek 2830.
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12-07-2014, 05:06 PM
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#8
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Senior Member
Join Date: Sep 2011
Location: Denver Metro Area
Posts: 333
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Thanks everyone. Looks like the obvious choice is the xantex pure! That's the one I'll take. Just hoping the difference between the 600 and 800 watts is not an issue.
I really love this site!
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Traveling whenever possible with DW, 3 kids and "Tate" the mut dog. 1999 Minnie Winnie 3F430V
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12-07-2014, 05:08 PM
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#9
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Senior Member
Winnebago Owners Club
Join Date: Sep 2013
Location: FTer Class of 2015 Origin: Evergreen, Colorado
Posts: 1,565
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I [also] recommend the Pure Sine Wave option -- As long as you are aware of with the wattage limitation, you will never be second-guessing it if/when you start to see gremlins in your other electronics down-th- road. \ken
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Ken, Deb, & Gadget (WIT Club, FMCA, SKP, and grateful volunteers with Habitat for Humanity and SOWERs), traveling in a well-behaved 2005 Winnebago Vectra 40FD w/1100w solar, some gee-golly-whizbang, and a TRAILERED 2015 Cherokee TrailHawk toad.
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12-07-2014, 08:10 PM
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#10
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Senior Member
Join Date: Sep 2012
Posts: 1,177
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yeah the xantex power watt 600 watt pure sine xantex power watt 600 watt pure sine xantex power watt 600 watt pure sine xantex power watt 600 watt pure sine xantex power watt 600 watt pure sine xantex power watt 600 watt pure sine xantex power watt 600 watt pure sine must have LOL
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