Great explanations. I was wondering why there were so many variations in the ampacity charts. Is there any consideration for surge capacity of the inverter when sizing wires/fuses? I see some of these units advertise a 3X surge rating. (midnite rosie)
It's because wires have different temperature ratings. No need to consider the surge capacity of inverters, it's a very short time and the wire can handle short surges in current.
Regarding the sizing of the F1 fuse, I notice that you are not including whatever power input that the charge controller is adding to the system. So your F1 fuse only has to relate to the draw (usage)?
How did you come up with these numbers for max amps for the wire gauge? Wikipedia lists completely different numbers: en.wikipedia.org/wiki/American_wire_gauge
Wires don't have the same insulation type. That's why there are wires made for different current carrying capacity. For example 70°C insulation temp and 105°C. Check my video on wire sizing.
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Thanks very much for your easy and well explained videos. Keep it up
Great explanations. I was wondering why there were so many variations in the ampacity charts. Is there any consideration for surge capacity of the inverter when sizing wires/fuses? I see some of these units advertise a 3X surge rating. (midnite rosie)
It's because wires have different temperature ratings. No need to consider the surge capacity of inverters, it's a very short time and the wire can handle short surges in current.
@cleversolarpower Good to know. Thanks for the reply.
Thank you for the so well explained videos. What CAD tool are you using for the diagram drawing? I need it to document my system.
Thanks, I use edraw
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My 48v inverter manual says to use a 300a fuse. I'll be using nt or other ceramic fuses. Maybe t class as well . I well need around 100m2 cable
You can split them up into 2x 50mm2
Regarding the sizing of the F1 fuse, I notice that you are not including whatever power input that the charge controller is adding to the system. So your F1 fuse only has to relate to the draw (usage)?
And, I meant to say thank you for your wonderful videos
does that further imply that in an inverter-only system (no 24V to 12V DC converter) that the F1 fuse will be the same fuse size as the inverter fuse?
Thax
Ac wire sizing for inverter please
This should be listed in the manual of the inverter already.
Can you help me for fuse, i have inverter mppt 3600w, and i have 7x375w(11a) panels, I don't know which one to buy
Rewatch the video please and repeat the steps for your own system. It's not that hard to do.
Great
Between 120A and 150A could also be 135Amp..... why 125Amp?
Because a 135A fuse is not available.
@@cleversolarpower Then use a 135A circuit-breaker instead.
How did you come up with these numbers for max amps for the wire gauge? Wikipedia lists completely different numbers:
en.wikipedia.org/wiki/American_wire_gauge
Wires don't have the same insulation type. That's why there are wires made for different current carrying capacity. For example 70°C insulation temp and 105°C. Check my video on wire sizing.
Schitterend!
Bedankt!