Xantrex GT3 question [RE-wrenches]

[Marco Mangelsdorf]

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To my esteemed Xantrex rep and all of you who have installed the their GT3,

Is it required, that is, are you all installing an overcurrent protection
device (fuse or breaker) between the one or two series strings feeding into
the inverter?  In drawing after drawing in the installation manual, it shows
nothing between the array and the inverter, fuse, breaker, disco or
otherwise.  And yet on page 3-6, one finds: "Important: Depending upon
installation and local codes, fusing and/or a combiner box may be required."
Again, assuming no more than two series strings, can one get by without a
fuse/breaker?  Which begs the fundamental question: can this inverter
backfeed into the DC side?

Marco Mangelsdorf
President
ProVision Technologies, Inc.
69 Railroad Avenue, Suite A-7
Hilo, Hawaii 96720 USA
(808) 969-3281, fax 934-7462
www.provisiontechnologies.com



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