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Hi
The manual of the device says that "48V models don't have input fuse, external required". However manuals doesn't specify the fuse sizes or max input current whatsoever.
Output amperage should be max 20 Amps so the fuse on the output should be around 25A as I understand.
But what size should be the input fuse?
Counting from 240W by 48 V the amperage should be 5A. Considering the losses in the device, the max input current could be little higher. So would 7,5A fuse be correct size?
Of course, the fuse should be rated higher than the maximum expected current.
However, remember that the fuse is there to protect the wiring. So you should select a fuse appropriate for the wiring used.
The manual does not state the rating of the fuse because the guage of wire used in the installation is unknown.
Okay thanks. I'm going other way around, taking the max current needed, figuring out the fuses and lastly the wires to handle that current with good safe marginal.
Maybe I'll go with those numbers I wrote earlier to keep it safe. I doubt I will ever use the Orion device with full power anyway.
Do you have a schematic to understand how install an external Imput fuse?
