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Sep 10, 2021, 07:03 PM
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Power Distribution Harness?

Hello, I'm looking at solutions for using either a power distribution harness or power distribution board for a hexacopter build I'm working on (ca. 110 A predicted max total current draw; 20/35 A ESCs). I really only see references to harnesses on small racing quads. Is there anyone out there using harnesses for larger quad or hexacopter builds? Any good tutorials or guides on how to do it? My issue with a PDB is I just don't see much out there that looks reliable or that I can find any information for. I've read good things about the APD PDBs, but unfortunately two of them would be needed for a hex build.

By harness I mean something like in the attached image I suppose, although soldering up something like this seems insane to me.

As an alternative, if anyone has a recommendation on the following PDBs I'd greatly appreciate the input:
-APD PDB360 (need 2 for a hex?):
-Holybro PM07:
-SmartAP PDB:

Thank you for the help.
Last edited by DBPRED; Sep 12, 2021 at 10:43 AM. Reason: clarity
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Sep 17, 2021, 03:45 PM
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RCMindBug's Avatar
So the question is do you need BECs or voltage regulators for 5v and 12v? There is an cheap option here: Large Current 200A PDB

I'm going to start building out my Tarot XS690 (Just got the frame in the mail today). I purchased the above PDB because I'm going to use the Mauch PL 4-6S BEC for my vReg needs. Also went with the Mauch current sensor.

But I do have to say, I like that SmartAP PDB option you listed. I was leaning very hard towards the HolyBro PDB for a while but felt it was set up for the HPixhawk 4 (I went with the Cube Orange) and then I found a good vendor for the Mauch gear here in the states.
Oct 19, 2021, 12:18 PM
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Thanks for your reply and the delay in mine. I ended up going with a similar setup to what you referenced, using Mauch systems and a Vulcan UAV PDB. In the process of wiring it all up right now. Thanks!

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