<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Nick,<div>Fronius sells a heavy copper buss bar which will link all the six inputs together. They look sort of like the Outback PSPV bus bars except copper and MUCH heavier. If you need four or more inputs you'll need to get two of them. Three or less, cut one in half. For some reason known only to Fronius in Austria, if Fronius US orders two of those buss bars in one packet, it costs more than two ordered separately. Drives Gord nuts, but that's the way it is. I just installed a 11.4Plus recently with the buss bars and it worked out pretty well. I never looked to see if there were individual fuses but it worked right out of the box, so....?</div><div>Combining on the roof with HV touchsafe fuses and holders is still the way to go, IMO, however if you are going to use a HU361 DC Disconnect at the inverter with four strings, you will likely need to run down two sets of home runs so as not to overload the poles which need to be derated from 30A by the usual 20%. Or, go to a 60A Disco which is probably more expensive than a second set of wires.</div><div>Hope this helps.</div><div>Bob-O</div><div><div><div>On Jun 20, 2009, at 12:23 PM, Nick Vida wrote:</div><br class="Apple-interchange-newline"><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font-family: 'times new roman', 'new york', times, serif; font-size: 12pt; "><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">hey Wrenches.<br><br>I opened my soon to be installed fronius IG Plus to see what was going on in there, and found myself a bit disappointed. There is a 6 string combiner in there which is fine, however there is no bypass for the fusing section and the terminals are rated at 20 amps. In a situation where you have 6 strings, you cannont combine on the roof and run down with a pair of conductors, instead you must run down with your strings. This means instead of running 3/4 conduit for 8awg pair and ground, I would have to run 1" conduit for 6 pairs of 10 awg and ground.<span class="Apple-converted-space"> </span><br>(thats a lot of flex for a 2x4!!) So if I need a disconect on the roof, I would need 2 disconects, and correct me if im wrong-- but i would need 4 disconects in the future because this is a transformerless inverter.<span class="Apple-converted-space"> </span><br>I also noticed that they are still using those mediocre white plastic terminals for the ac connection that so many people found annoying.<br>And fyi, there are no fuses in the fusing section, so dont forget to order them.<br><font class="Apple-style-span" face="Helvetica"><span class="Apple-style-span" style="font-size: medium;"><font class="Apple-style-span" face="'times new roman', 'new york', times, fantasy" size="4"><span class="Apple-style-span" style="font-size: 16px;"><br></span></font></span></font></div></div></div></span></div></div></body></html>