Re: [RE-wrenches] 600V DC contactor

[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-wrenches] Enphase

[Jay]

Hi all

I am replacing some old Enphase under the new replacement program. 
This one came with adapters to fit from the module Tyco ends to the 
inverterMC4. 

Except, the other end is Amphonel, not MC4. And the inverters are MC4. 

Is this the normal way from
Enphase or did The customer get something unusual/wrong. 

Thx 

Jay
Peltz power. 




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Re: [RE-wrenches] 600V DC contactor

[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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>

-- 
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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