dustNbone
10 kW
For a run like that I'd want at least 2AWG, but 4 would probably be fine. But generally for inside the box like that, I cram in the biggest one I can reasonably fit.
Wire or Cable size? 100ahr 12.8V Lifepo4
- Thread starter dustNbone
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Sunder
10 MW
7" of 4 AWG @ 600A = 51 watt loss
7" of 2 AWG @ 600A = 33 watt loss
7" of 4AWG @ 200A = 5.7 watt loss
7" of 2AWG @ 200A = 3.6 watt loss
7" of 4AWG @ 80A = <1w loss
7" of 2AWG @ 80A = <1w loss
As long as your times are accurate, I'd say dustNbone is spot on. I would not like to see 51w of heat dumped across just 7" of cable for any significant period. Short cables = low resistance, but short cable = smaller heat sink...
7" of 2 AWG @ 600A = 33 watt loss
7" of 4AWG @ 200A = 5.7 watt loss
7" of 2AWG @ 200A = 3.6 watt loss
7" of 4AWG @ 80A = <1w loss
7" of 2AWG @ 80A = <1w loss
As long as your times are accurate, I'd say dustNbone is spot on. I would not like to see 51w of heat dumped across just 7" of cable for any significant period. Short cables = low resistance, but short cable = smaller heat sink...
How much current does the motor actually take?
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