[RE-wrenches] 600V DC contactor

[Glenn Burt]

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 <re-wrenches-bounces at lists.re-wrenches.org> On Behalf Of Chris Sparadeo
Sent: Friday, November 22, 2019 10:47 PM
To: RE-wrenches <re-wrenches at lists.re-wrenches.org>
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

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