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Old 02-16-2015, 05:48 PM   #1
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Magnum MSH 3012M Installed!

Yesterday, I threw the breaker and turned on my just-completed installation of this pure sine wave inverter/charger in my new Classic. Lewster was a key motivator to do this rather than just put in a 2000W inverter to replace the noisy (always running fan, it seems), Chinese WFCO. The task was somewhat more complex as the trailer is 50 AMP and the Magnum is really set-up for 30 AMP. The really cool part of the install, though, was installing a sub-panel for the Magnum by selecting circuits from the main panel that I wanted to be inverted. The net-net of this, is that I can plug just about anything in to any outlet in my trailer whenever I want....and if I'm in a campground with low volts, the Magnum will support the power deficit (well, for awhile I suppose). This is not an inexpensive upgrade. Figure around $2,000 for the Magnum, another $150 for the awesome remote control, and whatever decent batteries you add. In my case, I went for 4 Lifeline 6V. The "works" for all this fit perfectly under the dinette seats, though I've lost one drawer as the batteries won out. BTW, if you ever have to work with 4/0 copper cable, you have my full and total sympathy. HEAVY, and putting connectors on them takes patience and the right tools. BUT -- it's done and works perfectly. One aside. Option freak that I am, I wired in a special circuit that I can use if I ever have to pull out the inverter for any reason (repair?). This will allow me to continue to put 120V to those circuits in the panel that would usually get power from the inverter.
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Old 02-16-2015, 06:15 PM   #2
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Originally Posted by BAB View Post
Yesterday, I threw the breaker and turned on my just-completed installation of this pure sine wave inverter/charger in my new Classic. Lewster was a key motivator to do this rather than just put in a 2000W inverter to replace the noisy (always running fan, it seems), Chinese WFCO. The task was somewhat more complex as the trailer is 50 AMP and the Magnum is really set-up for 30 AMP. The really cool part of the install, though, was installing a sub-panel for the Magnum by selecting circuits from the main panel that I wanted to be inverted. The net-net of this, is that I can plug just about anything in to any outlet in my trailer whenever I want....and if I'm in a campground with low volts, the Magnum will support the power deficit (well, for awhile I suppose). This is not an inexpensive upgrade. Figure around $2,000 for the Magnum, another $150 for the awesome remote control, and whatever decent batteries you add. In my case, I went for 4 Lifeline 6V. The "works" for all this fit perfectly under the dinette seats, though I've lost one drawer as the batteries won out. BTW, if you ever have to work with 4/0 copper cable, you have my full and total sympathy. HEAVY, and putting connectors on them takes patience and the right tools. BUT -- it's done and works perfectly. One aside. Option freak that I am, I wired in a special circuit that I can use if I ever have to pull out the inverter for any reason (repair?). This will allow me to continue to put 120V to those circuits in the panel that would usually get power from the inverter.
I know you could do it!!!!!

The trick is to use class 'K' welding cable, which bends like a wet noodle despite it's size. Of course, it should at $12/foot!

I'm installing one as we speak and have found a very elegant way to incorporate the sub panel and main panel into one space....essentially replacing the Airstream breaker box and converter and using this area.

I'll post a shot as soon as I can find it.
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Old 02-16-2015, 06:32 PM   #3
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Great job!!

If you get a chance, please post some notes and pictures.
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Old 02-16-2015, 06:52 PM   #4
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Here's the shot. The breaker panel is split. The 50 amp 'main' panel is to the right side, and the 50 amp 'subpanel' which has the inverter powered circuits is to the left. The DC fuse block (new) is located below the breaker panel and still has the cover on it.
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Old 02-16-2015, 07:14 PM   #5
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What supplies the 12v for lights, etc both when on shore power and off.
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Old 02-16-2015, 07:26 PM   #6
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What supplies the 12v for lights, etc both when on shore power and off.
Batteries
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Old 02-16-2015, 08:12 PM   #7
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Lew, your panel is awesome. Here's a shot of mine....not quite so pretty, but it is in the closet....and the main panel is just below. Easy to move wires from one to the other, though the Magnum and batteries are on the opposite side of the trailer -- I went down and under, but it came out just fine. Next to the sub-panel is a Progressive Industries power management system, and since I was in there, I put in an inverted 120V box to charge the Dyson vacuum that will reside in there. These shots were taken before I "neatened up" all my wiring and replaced the dinette seats. Barry
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Old 02-16-2015, 08:31 PM   #8
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I seem to have seen this somewhere.....great installations, Barry
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Old 02-16-2015, 08:52 PM   #9
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Lew, your panel is awesome. Here's a shot of mine....not quite so pretty, but it is in the closet....and the main panel is just below. Easy to move wires from one to the other, though the Magnum and batteries are on the opposite side of the trailer -- I went down and under, but it came out just fine. Next to the sub-panel is a Progressive Industries power management system, and since I was in there, I put in an inverted 120V box to charge the Dyson vacuum that will reside in there. These shots were taken before I "neatened up" all my wiring and replaced the dinette seats. Barry
Barry,

NICE JOB!

If you want to have still a neater appearance, I would remove the rope handles from the Lifelines. I find that once positioned, they just look messy and are in the way of the cables. I do this on every installation where I use Lifelines.
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Old 02-17-2015, 07:08 PM   #10
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VERY pretty, Lew!
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Old 02-17-2015, 09:20 PM   #11
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VERY pretty, Lew!
Awwwwwwwww!

Thanks!
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Old 02-20-2015, 07:15 PM   #12
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Gosh, cut off the rope handles of the Lifelines? Those suckers weigh 66 lbs each. What happens when I need to replace them? Or better yet.....AM Solar finally gets the OK from the Feds to ship the Lithiums.....and I go for an upgrade. HA! I will post some more pictures after I do the final touches to cable routing, etc. And, while my sub-panel is not as cool as Lewster's all-in-one main panel, I think you'll be impressed with the wood framing around my sub-panel -- stained to match the dark cherry (of course) that's the hallmark of the '15 Classic!
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Old 02-20-2015, 07:55 PM   #13
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Just untie them and store for future use....😄


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Old 02-20-2015, 08:47 PM   #14
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Gosh, cut off the rope handles of the Lifelines? Those suckers weigh 66 lbs each. What happens when I need to replace them? Or better yet.....AM Solar finally gets the OK from the Feds to ship the Lithiums.....and I go for an upgrade. HA! I will post some more pictures after I do the final touches to cable routing, etc. And, while my sub-panel is not as cool as Lewster's all-in-one main panel, I think you'll be impressed with the wood framing around my sub-panel -- stained to match the dark cherry (of course) that's the hallmark of the '15 Classic!
Barry,

Sorry if I upset anyone , but you can actually remove them for future use. There is a plastic 'union' that has a removable plastic piece bonded to the poly rope that comes out of the union. Just feed it back thru the molded-in loops and the ropes come off....no problem! You can store them for eventual removal and replacement of the batteries.

Please be sure to post the final shots with your matching woodwork!!!!
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