Hello All
OutBack does offer a RSD solutions.
Please see the links below
http://www.outbackpower.com/products/safety-compliance/rapid-shutdown-kits
We also pair up with the FireRaptor RSD product
http://www.outbackpower.com/products/safety-compliance/fireraptor-rapid-shutdown

In addition the FM100 has onboard AFCI
http://www.outbackpower.com/products/charge-controllers/flexmax-100-afci

I hope this helps.
Take Care All




From: RE-wrenches <re-wrenches-boun...@lists.re-wrenches.org> On Behalf Of 
Jerry Shafer
Sent: Wednesday, April 29, 2020 11:34 PM
To: RE-wrenches <re-wrenches@lists.re-wrenches.org>
Subject: Re: [RE-wrenches] Rapid Shutdown Compliance

Wrenches
We are taking two very different issues and mixing them together. RSD and 
Arc-fault are different, arc fault will and does prevent fires, RSD was brought 
out of the need to vent a roof that even with the meter pulled have 500 volts 
and resulted shocks to fire fighters by cutting into roofs or nearby conduite. 
This is fact not conjecture.
Arc fault is a fire preventer but requires nothing on the roof when using 
string level inverters. Now both RSD and arc-fault in off grid increase the 
complexity but the new charge controllers fit the arc and Tigo fixes the RSD 
issues.
I know everyone of you learned to use a smart phone and can now adapt again to 
this new tech, we have to be leaders in this industry and not well you know.
Jerry
NABCEP PV Inspector.
Been in this industry since 1978

On Wed, Apr 29, 2020, 6:57 PM Jay 
<jay.pe...@gmail.com<mailto:jay.pe...@gmail.com>> wrote:
Hi Drake

I will disagree, there have been many roof top fires.

But regardless we have to do these new regulations and I for one welcome the 
safety.

The main issue is accessing the faulty/suspect component under the module 
possibly requiring removing multiple modules, a slow and expensive process.

My technique is to install the MLPE at the edges of the array, using wire 
extensions. That way at most I have to remove a single module.  And Im working 
on a drop bracket which would allow better cooling and easier access without 
module removal to the MLPE, greatly reducing time to swap.

Jay

Peltz Power.






On Apr 29, 2020, at 7:59 AM, 
drake.chamber...@redwoodalliance.org<mailto:drake.chamber...@redwoodalliance.org>
 wrote:


Clearly, rapid shutdown increases cost and reduces reliability. Given the 
excellent safety record of PV, prior to rapid shutdown being required, it is 
unnecessary. The few anecdotal incidents of PV fires were not enough to justify 
the requirement, especially on smaller systems.

According to a friend who worked for a local installation company that went 
under, a big part of the reason for their failure was the chronic replacement 
of microinverters and optimizers.

What steps can be taken to create some balance in the rapid shutdown 
requirements that are in the NEC?


---




On 2020-04-29 07:27, Sky Sims wrote:
So far rapid shutdown has been a nightmare. It's added a lot of cost for no 
measurable benefit.
Using always off devices like midnight solar and Tigo makes it impossible to 
test open circuit voltages. Which opens the door to tons of problems when 
commissioning systems.
Also we've been trying out midnight Solar's product and have had an absurd 
failure rate. Which means lots of truck rolls and troubleshooting and system 
downtime. They send replacement product but they aren't paying for the lost 
weeks of productivity.
We have Tigo product in hand and are deciding which project to try it on. But 
our big concern about using it is not only the inability to confirm open 
circuit voltage of the strings but also the way panels bypass if the device 
doesn't allow the panel to connect properly. Both of these features are a 
recipe for problems and potential troubleshooting nightmares. The warranty from 
Tigo doesn't cover our expense if the product fails. And that's really what our 
reservations about the product boil down to right now. If we're on a job with 
50 units and one fails, the contractor or the homeowner will be the ones eating 
the expense of finding it and replacing it. There has to be a better option.

Sky Sims
Https://EcologicalSystems.biz


On Apr 28, 2020, at 7:46 PM, Corey Shalanski 
<coreso...@gmail.com<mailto:coreso...@gmail.com>> wrote:
Now that 690.12 of the NEC 2017 has been in effect for several years, I am 
curious how designers and installers are meeting the associated requirements 
with string inverter-based systems (*not* considering microinverters or DC 
optimizers). I am generally a fan of the KISS principle, and as best I can 
determine the Tigo TS4-F device is one of the simplest options currently 
available on the market. What are others finding?

I'd love to hear about favored options for complying with rapid shutdown. Any 
success stories? or better yet, any early failures?

--
Corey Shalanski
Jah Light Solar
Portland, Jamaica
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