Author Topic: What does "per mppt" mean here?  (Read 570 times)

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makenzie71

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What does "per mppt" mean here?
« on: April 11, 2022, 03:32:15 PM »
The max operating current on this inverter's datasheet says "10 amps per mppt".  What exactly does that mean?

https://tandem-solar-systems.com/product/sma-sb7-0-1sp-us-41-7-0kw-sunny-boy-inverter/?gclid=CjwKCAjwo8-SBhAlEiwAopc9WxD4-HePwmBB5jTMrbEGcT5BXAZMKfkJGc3F1XTsC6ztgegvDqtr5BoCdIIQAvD_BwE

Does that mean that literally I can only hit this inverter with 10 amps?

mab

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Re: What does "per mppt" mean here?
« Reply #1 on: April 11, 2022, 04:11:51 PM »
I'm guessing it's a dual input inverter - i.e. it has two independent mppt inputs for two strings of pv panels, and the max pv input current for one channel is 10a.

makenzie71

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Re: What does "per mppt" mean here?
« Reply #2 on: April 11, 2022, 04:26:32 PM »
Thanks mab I'm seeing that now for what it is...I haven't had to deal with these kinds of inverters before and it's turning out that this machine is essentially three inverters running in parallel.  I think I can make that work by rectifying each phase and running them individually to the inverter...maybe...lol