Re: [RE-wrenches] 600V DC contactor

2019-11-24 Thread Chris Sparadeo 
Thanks for the suggestions, everyone. Looks like I have 3 solid options to
work with.

Chris, this specific project was designed with two points of
interconnection. One 10kW inverter on the Sonnen’s critical loads panel and
the other 10 kW on the main distribution panel. Wanting to stick with the
same manufacturer while avoiding having to use 3 separate inverters (and an
additional accumulation panel for the 2 inverters upstream of the Sonnen) I
figured that the DC contactor trick would probably  be the easiest way out.

Thanks again for the assist

On Sun, Nov 24, 2019 at 10:06 AM Chris Sparadeo 
wrote:

> Thanks for the suggestions, everyone. Looks like I have 3 solid options to
> work with.
>
> Chris, this specific project was designed with two points of
> interconnection. One 10kW inverter on the Sonnen’s critical loads panel and
> the other 10 kW on the main distribution panel. Wanting to stick with the
> same manufacturer while avoiding having to use 3 separate inverters (and an
> additional accumulation panel for the 2 inverters upstream of the Sonnen) I
> figured that the DC contactor trick would probably  be the easiest way out.
>
> Thanks again for the assist
>
> On Sat, Nov 23, 2019 at 7:49 PM Glenn Burt  wrote:
>
>> Not sure if the application notes are still available – here is one I
>> have had since taking their training a couple of years ago. Hope it helps.
>>
>>
>>
>> -Glenn
>>
>>
>>
>> *From:* RE-wrenches  *On
>> Behalf Of *Chris Sparadeo
>> *Sent:* Friday, November 22, 2019 10:47 PM
>> *To:* RE-wrenches 
>> *Subject:* [RE-wrenches] 600V DC contactor
>>
>>
>>
>> Hi wrenchers,
>>
>>
>>
>> I am currently on the look out for a DC contactor to suit my needs. A
>> little background:
>>
>>
>>
>> Per Sonnen Batterie tech support’s recommendation I have installed a 10
>> kW SolarEdge HD Wave inventer coupled with the Sonnen Eco 12. Although the
>> Sonnen Eco 12 uses an Outback Radian 8kW multimode inverter(of which
>> Outback suggests to max AC couple input of 5kW) Sonnen says that AC PV
>> input greater than 8kW will require a contactor  to interrupt a string
>> or two of the grid interactive inverter so that it’s output will remain
>> less than the max 8kW input. That’s fine and well, but when asked directly,
>> Sonnen didn’t have a part # for the contactor and suggested that anything
>> over 150V DC would be difficult to find. Anyone know of a 600V rated
>> contactor that would suit the bill? Essentially the contactor would need to
>> sense grid interruption (via a 15A-AC breaker) and open a 600 V rated DC
>> string.
>>
>>
>>
>> I’ve done some preliminary searching and have come up empty handed. Any
>> input would be greatly appreciated.
>>
>>
>>
>> Best,
>>
>>
>>
>> Chris
>>
>> --
>>
>> Chris Sparadeo
>>
>>
>>
>>
>>
>> C_802-369-4458
>>
>> H_802-728-3059
>> ___
>> List sponsored by Redwood Alliance
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>> --
>
> *Chris Sparadeo*
>
> *NABCEP Certified PV Installation Professional # 042919-015652*
>
> Catamount Solar, LLC
>
> 4 Randolph Ave., Randolph, VT 05060
>
> C_(802) 369-4458
>
> O_(802) 728-3600
>
> www.CatamountSolar.com <http://www.catamountsolar.com/>
>
>
>
> --
Chris Sparadeo


C_802-369-4458
H_802-728-3059
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Re: [RE-wrenches] 600V DC contactor

2019-11-23 Thread Starlight Solar Power Systems 
We have used Gigavac in some of our Li-ion EMS systems for many years with 
hundreds in the field and no failures. GX11 good to 800Vdc. 
https://www.gigavac.com/catalog/power-products/gx-series


Larry Crutcher
Starlight Solar Power Systems






On Nov 22, 2019, at 8:47 PM, Chris Sparadeo  wrote:

Hi wrenchers,

I am currently on the look out for a DC contactor to suit my needs. A little 
background:

Per Sonnen Batterie tech support’s recommendation I have installed a 10 kW 
SolarEdge HD Wave inventer coupled with the Sonnen Eco 12. Although the Sonnen 
Eco 12 uses an Outback Radian 8kW multimode inverter(of which Outback suggests 
to max AC couple input of 5kW) Sonnen says that AC PV input greater than 8kW 
will require a contactor  to interrupt a string or two of the grid interactive 
inverter so that it’s output will remain less than the max 8kW input. That’s 
fine and well, but when asked directly, Sonnen didn’t have a part # for the 
contactor and suggested that anything over 150V DC would be difficult to find. 
Anyone know of a 600V rated contactor that would suit the bill? Essentially the 
contactor would need to sense grid interruption (via a 15A-AC breaker) and open 
a 600 V rated DC string. 

I’ve done some preliminary searching and have come up empty handed. Any input 
would be greatly appreciated.

Best,

Chris 
-- 
Chris Sparadeo


C_802-369-4458
H_802-728-3059

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Re: [RE-wrenches] 600V DC contactor

2019-11-23 Thread Chris Mason 
https://www.amazon.com/Siemens-3TC48-17-0B-Pole-Contactor-600V/dp/B00WH0QNHA

I've done this with Sonnen previously, interrupted the inverter output to
precent power being sent back to the grid. You might look at to inverters
and interrupt one.

On Fri, Nov 22, 2019 at 11:47 PM Chris Sparadeo 
wrote:

> Hi wrenchers,
>
>
> I am currently on the look out for a DC contactor to suit my needs. A
> little background:
>
>
> Per Sonnen Batterie tech support’s recommendation I have installed a 10 kW
> SolarEdge HD Wave inventer coupled with the Sonnen Eco 12. Although the
> Sonnen Eco 12 uses an Outback Radian 8kW multimode inverter(of which
> Outback suggests to max AC couple input of 5kW) Sonnen says that AC PV
> input greater than 8kW will require a contactor  to interrupt a string or
> two of the grid interactive inverter so that it’s output will remain less
> than the max 8kW input. That’s fine and well, but when asked directly,
> Sonnen didn’t have a part # for the contactor and suggested that anything
> over 150V DC would be difficult to find. Anyone know of a 600V rated
> contactor that would suit the bill? Essentially the contactor would need to
> sense grid interruption (via a 15A-AC breaker) and open a 600 V rated DC
> string.
>
>
> I’ve done some preliminary searching and have come up empty handed. Any
> input would be greatly appreciated.
>
>
> Best,
>
>
> Chris
> --
> Chris Sparadeo
>
>
> C_802-369-4458
> H_802-728-3059
> ___
> List sponsored by Redwood Alliance
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> List Address: RE-wrenches@lists.re-wrenches.org
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>

-- 
Chris Mason
Solar systems designer
Generac Generators Industrial technician

Comet Systems Ltd DBA Comet Solar
Anguilla Cell  264.235.5670
WhatsApp 264.235.5670
Skype: netconcepts
www.cometsolar.com 
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Re: [RE-wrenches] 600V DC contactor

2019-11-22 Thread Glenn Burt 
Gigavac.-GlennSent from my 'smart'phone, so please excuse typos and spelling 
errors.-- Original message--From: Chris SparadeoDate: Fri, Nov 22, 2019 
10:47 PMTo: RE-wrenches;Cc: Subject:[RE-wrenches] 600V DC contactorHi 
wrenchers,I am currently on the look out for a DC contactor to suit my needs. A 
little background:Per Sonnen Batterie tech support’s recommendation I have 
installed a 10 kW SolarEdge HD Wave inventer coupled with the Sonnen Eco 12. 
Although the Sonnen Eco 12 uses an Outback Radian 8kW multimode inverter(of 
which Outback suggests to max AC couple input of 5kW) Sonnen says that AC PV 
input greater than 8kW will require a contactor  to interrupt a string or two 
of the grid interactive inverter so that it’s output will remain less than the 
max 8kW input. That’s fine and well, but when asked directly, Sonnen didn’t 
have a part # for the contactor and suggested that anything over 150V DC would 
be difficult to find. Anyone know of a 600V rated contactor that
  would
 suit the bill? Essentially the contactor would need to sense grid interruption 
(via a 15A-AC breaker) and open a 600 V rated DC string. I’ve done some 
preliminary searching and have come up empty handed. Any input would be greatly 
appreciated.Best,Chris -- Chris SparadeoC_802-369-4458H_802-728-3059
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[RE-wrenches] 600V DC contactor

2019-11-22 Thread Chris Sparadeo 
Hi wrenchers,


I am currently on the look out for a DC contactor to suit my needs. A
little background:


Per Sonnen Batterie tech support’s recommendation I have installed a 10 kW
SolarEdge HD Wave inventer coupled with the Sonnen Eco 12. Although the
Sonnen Eco 12 uses an Outback Radian 8kW multimode inverter(of which
Outback suggests to max AC couple input of 5kW) Sonnen says that AC PV
input greater than 8kW will require a contactor  to interrupt a string or
two of the grid interactive inverter so that it’s output will remain less
than the max 8kW input. That’s fine and well, but when asked directly,
Sonnen didn’t have a part # for the contactor and suggested that anything
over 150V DC would be difficult to find. Anyone know of a 600V rated
contactor that would suit the bill? Essentially the contactor would need to
sense grid interruption (via a 15A-AC breaker) and open a 600 V rated DC
string.


I’ve done some preliminary searching and have come up empty handed. Any
input would be greatly appreciated.


Best,


Chris
-- 
Chris Sparadeo


C_802-369-4458
H_802-728-3059
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