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<p>What amp rating do you need? Midnite Solar makes a small 30 amp
manual transfer switch, while Reliance (via Northern Tool) makes
60 and 100 amp models. Or are you looking for automatic
transfer? Generac makes a bunch of 100 to 200 amp rated transfer
switches. Square D and others make some bigger load break rated
stuff but it gets big and expensive.<br>
</p>
<pre class="moz-signature" cols="72">Ray Walters
Remote Solar
303 505-8760</pre>
<div class="moz-cite-prefix">On 8/13/19 12:16 PM, Jon Siegenthaler
wrote:<br>
</div>
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cite="mid:CADLBWGXvO=g8Q_vrpDSMLZfkNRtKMrsBx0Wywy+fJ5iJNmPHrw@mail.gmail.com">
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<div>Hello wrenchers,</div>
<div>I have a client we're building for who is going to have
installed two of the SolarEdge Storedge inverters with two of
LG Chem RESU batteries. This electrical system also has a
backup generator which then requires there to be an interlock
between the inverters and the generator. I was hoping because
this was a zero export system (as required or by punishment of
paying the utility for your overproduction) that the SolarEdge
smart meter would detect and not export to the generator, but
as a fail-safe it would be better not to trust a $300 meter
against a $10,000 generator and install an interlock.<br>
<br>
My question is; has anyone found an interlock that would work
with this system? From my understanding the inverters would
need to switched off, but then the dedicated panels that the
inverters are powering would need to be transferred over to
the generator power. The simplest answer I can come up with is
a panel with no bussing (mounted on din rail) on one side with
4-2 pole breakers, each is set consists of 2-2 pole breakers
with jumpers on the backside so that the inverter has a jumper
to the dedicated load panel breaker. On the other side of the
panel would be either on a bus or also with jumpers that went
to 2-2 pole breakers for the generator in and out and then
also the 2-2 pole breakers for the dedicated load panels. Then
there would be an interlock that slides from left to right to
control which system was on, this being either PV or
generator. <br>
<br>
Thanks ahead of time for any help or product suggestions, <br>
</div>
<div><br>
</div>
<div>Jon Siegenthaler<br>
</div>
</div>
<br>
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