[RE-wrenches] battery buss bars

[penobscotsolar at midmaine.com]

Here's one of the 6 port Burndy blocks for up to 600 kcmil, with spec sheet:

http://www.burndy.com/site-search.aspx?cx=002899303449139187703%3Ae9jb50hrnuc&cof=FORID%3A10&ie=UTF-8&q=insulated+blocks&SearchType=PartNumber&go.x=0&go.y=0




> I've also used the big Polaris insulated tap connectors.  I used one that
> has 6 ports that are max. 250 MCM, I believe.  I don't know the amp
> rating, but I would assume it would match the largest conductor.
>
> R. Walters
> ray at solarray.com
> Solar Engineer
>
>
>
>
> On Jan 17, 2012, at 11:17 AM, Allan Sindelar wrote:
>
>> Ray,
>> We have a job under contract this summer with four Sunny Islands and a
>> Radian sharing the same battery bank. Even with the SIs protected by
>> 125A DC breakers, that's 850A of DC capacity that we have to buss
>> together.
>>
>> The Midnite bussbar in your link is rated 280A in its description. That
>> seemed pretty wimpy, given that a single Radian uses two 175A GJ
>> breakers with conductors paralleled, so I just called Ryan Mayfield,
>> Midnite tech support. As he understands it, the limit is on the terminal
>> strip, not the bussbar itself. He'll talk with Robin about this and get
>> back to me; if I learn more I'll share it here.
>>
>> Even the Del City bussbar is rated just 500A. Are there any
>> higher-capacity products available?
>>
>> Allan
>>
>> Allan Sindelar
>> Allan at positiveenergysolar.com
>> NABCEP Certified Photovoltaic Installer
>> NABCEP Certified Technical Sales Professional
>> New Mexico EE98J Journeyman Electrician
>> Positive Energy, Inc.
>> 3201 Calle Marie
>> Santa Fe, New Mexico 87507
>> 505 424-1112
>> www.positiveenergysolar.com
>>
>>
>>
>>
>> On 1/17/2012 10:22 AM, R Ray Walters wrote:
>>>
>>> Midnite has a new one:
>>> http://www.midnitesolar.com/productPhoto.php?product_ID=207&productCatName=Busbars&productCat_ID=17
>>>
>>> Here's a new one I just found with Del City also:
>>> http://www.delcity.net/cartviewitem?item=80510DL&search=buss+bar
>>> or
>>> http://www.delcity.net/cartviewitem?item=80006DL&search=distribution+block
>>>
>>> I've used the Ilsco insulated distribution blocks available at
>>> electrical supply houses.
>>>
>>> I've also made them out of 1/4" x 2" copper, and then used some weird
>>> way to isolate it, or bolted them to the breaker.
>>>
>>> R. Walters
>>> ray at solaray.com
>>> Solar Engineer
>>>
>>>
>>>
>>>
>>> On Jan 17, 2012, at 9:43 AM, jay peltz wrote:
>>>
>>>> Hi All,
>>>>
>>>> Where do I find buss bars for a battery parallel problem?
>>>>
>>>> I've got to fix a brand new ( not me) system, that has 4 sets of
>>>> L-16's at 24v.
>>>> Yea yea why didn't they go to 48?
>>>>
>>>> So I want to use buss bars to parallel them, and looking for premade
>>>> ones.
>>>>
>>>> Thanks in advance,
>>>>
>>>> Jay
>>>>
>>>> Peltz power
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