@HighTechLab It is somewhat misleading that these busbars are listed as "300A" in the title when you have 250A Victron busbars that are 2.5x the cost and could handle that amperage through the busbar itself since it is at least 3x the thickness of those 300A brass ones and it is made of copper.
I think why there is discrepancy in some of these busbars including how Current Connected labels them is you have to stack the battery connections AND the inverter cables on the same studs (and why people in earlier part of this thread said you need to use the studs). When you do that the current can flow directly from battery cable to inverter cable without going through the brass busbar. This is also why when you use those small screw connections it states it is severely limited in the amperage since you can't stack those and it has to travel through a lot of that thin brass busbar.
Seems like it would be a lot clearer if the titles more accurately reflected a difference between them. On Current Connected at least, instead of "300A 4-Stud Bus Bars – Distribution Block w/Cover – Red/Black" it could be "300A stacked 4-Stud Bus Bars – Distribution Block w/Cover – Red/Black". That would at least make people realize there is a difference and look closer at what that means.
