Brian:
You and I were right on-target with our evaluation. Below is the message I received from Morningstar: The partition was added to satisfy UL/ETL requirements to prevent co-mingling of high voltage(600V) input wires and low voltage battery and communication wiring. If the insulation on your battery and/or communication cabling is rated for 600V, co-mingling shouldn't be an issue. However, if the insulations is not rated for high voltage, we would suggest leaving the divider intact. I applaud Moringstar for backing down on their original instructions and first email reply. It is unfortunate that they were not more precise in their original instructions-some installers may have wasted time and money on conduit and partitions. I don't know if I could find wire not rated for 600 volts, so this is really a non-issue. William Miller Lic 773985 millersolar.com 805-438-5600 -----Original Message----- From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Brian Mehalic Sent: Monday, April 07, 2014 11:46 AM To: RE-wrenches Subject: Re: [RE-wrenches] 600 v pv lead separation I don't know, but maybe it's a provision for using lower voltage rated wire for the batteries? Brian > On Apr 7, 2014, at 2:17 PM, William Miller < <mailto:will...@millersolar.com> will...@millersolar.com> wrote: > > Colleagues: > > I am installing a set of Tristar 600 volt input charge controllers. There are separate compartments for PV and battery leads. Reviewing the 2014 NEC, I see no requirement that these sets of leads be separated. > > I wrote to the manufacturer just now asking the same question. > > Have any of you looked into this yet? > > Thanks in advance. > > William Miller
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