Yes Scarlet, the HU 361 IS rated for multiple wires [RE-wrenches]

[John Berdner]

Jeff C. / Matt L./ Wrenches:

I contacted Square D about the multiple wires in one lug thing.
They pointed out to me that it is already on the data sheet for 2 wires
per lug - Oops
I guess it would help if I read what they sent me a little closer.
Anyway, you can use (2) wires in each terminal # 10 to #14 AWG Solid or
stranded (He also said don't mix solid and stranded in the same lug).
Bingo - instant combiner 2 strings per input, 1 switch for up to three
inverter. 
Just pass the 2 neutrals through the enclosure and land um on 2 of the
3 negative input dc terminals.

The preliminary sheet is up on our web site and the latest one should
be up in the next few days.
Doug from Real Goods also posted a link to the original on the Square D
site a week or so ago.
You have to cut and paste the link together because it is so long but
it will work. 

Best Regards,,
John Berdner

SMA America, Inc.

>>> clrwater at earthlink.net 6/3/2003 11:45:10 AM >>>
Hi Matt,


Yes I see your points.  I was trying to get away with only one line 
to the SB by combining a the HU361  but if each lug is rated for only 
one cu landing that won't work and it defeats what I was after.

But it strikes me as very odd that a PSSB breaker can be rated to two 
conductors/lug but not the nice big lugs on a HU361.  Any chance of 
that rating changing?  John B?

Thanks,

Jeff C.


>
>1.  The Line (Array) is required to be landed on the top lugs of the
>Disco. (Behind the arc-shield)

My drawing was electrical not orientation - but yes thanks for the 
reminder of using the shieded side correctly.

>
>2.  The lugs are rated for single-conductor landing only.
>
>My recommendation, at least relating to the Disco at the Inverter, is
to
>run the two "switched hots" (from the bottom lugs) to the SB.  The SB
>has 3 DC Input terminals for a reason.  This is it.
>
>Regarding the use of an HU361 at dual locations, I think you will
find
>you can easily run the extra pair between disconnects in the same
>conduit you are already installing.
>
>Try it this way:
>
>ARRAY
>
>+ from String 1
>            + from String 2
>l         l
>0   0   0
>
>      ROOF Disco
>
>0  0  0
>l       l
>l       l
>l       l
>+      + to 2nd Disco; Line 3
>to 2nd Disco; Line 1
>l       l
>l       l ________ IN CONDUIT
>l       l
>
>
>+ from Roof Disco; Load 1
>            + from Roof Disco; Load 3
>l         l
>0   0   0
>
>      INVERTER DISCO
>
>0  0  0
>l       l
>l       l
>l       l
>+      + to SB DC Input
>to SB DC Input
>
>
>Hope this helps...
>
>Pray for Sun and No Tanlines!
>
>Matt Lafferty
>Universal Energies Institute
>mlafferty at universalenergies.com 
>(916) 422-9772
>(916) 628-7694 Cell
>(916) 914-2247 Fax
>www.universalenergies.com 
>
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-- 
~~~~~~~~~~~~~
Jeff Clearwater
Village Power Design Associates
Sustainable Energy & Water Solutions for Home & Village

877-SOLARVillage
PO Box 115
Boonville, CA 95415

61 Baker Rd
Shutesbury, MA 01072
413-256-6777, 413-825-0372 (Fax)

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