Rexracer
New Member
So, I bought a pair of 250 amp copper bus bars from Amazon. After hooking the up during my build, I realized (late) that the plate was actually brass. If it was copper, according to the ampacity chart I looked at, and the plate dimensions, it may have been good for 200 amps as it was 2mm x 19mm. Seems the charts are all over th place.
Looked up brass, and apparently it's only good for about 28% of copper for current capacity, so maybe 55 amps. NOT GOOD!
Anyway, the housing is pretty solid, so I ordered a tinned copper bar, 4mm x 20mm x 1000mm for only $38. Also from Amazon. According to the same chart, that should be good for an easy 300 amps. I only need about 150. I drilled some holes and rebuilt the bus. Should work great.
I also ordered some FR4 composite bar that I'm going to play with. Bus bars, fuse holders. Something to play with. May replace all my ANL fuse holders and make a good class T holder if I upgrade my batteries. Fun!
Looked up brass, and apparently it's only good for about 28% of copper for current capacity, so maybe 55 amps. NOT GOOD!
Anyway, the housing is pretty solid, so I ordered a tinned copper bar, 4mm x 20mm x 1000mm for only $38. Also from Amazon. According to the same chart, that should be good for an easy 300 amps. I only need about 150. I drilled some holes and rebuilt the bus. Should work great.
I also ordered some FR4 composite bar that I'm going to play with. Bus bars, fuse holders. Something to play with. May replace all my ANL fuse holders and make a good class T holder if I upgrade my batteries. Fun!