Pike Industries400 Amp Solid Copper Busbar 4 Stud (5/16" Zinc, Red) Common Bus, Terminal Block

I can’t tell you how many of these bus bars I have ordered. I’m sure Amazon could though. I have these bars on all 3 of my vehicles and a few friends. First I’m going to say, its copper it’s what you want. doesn’t matter if it’s “tin plated”. I run a constant flow of 350 amps on two bars and roughly 270 on the third. They stay the temp of outside. They do not heat up, they do not melt. Now if you order the 5/16” version your wire lug need: a hole of 3/8”Understand? So go measure your lugs and order the size slightly smaller. If your lug is 3/8 and you order a 3/8 you’re gunna have to drill your lugs a tad wider. The best part about these is it Beats paying $100+ for a product that does the exact same thing. Buy it. Screw the little 2”x5” box versions you see on Amazon with the little box cover and punch out doors and buy this one. It’s not worth the risk of burning your entire engine bay over a $30 difference.

Busbar is built strong using quality components.  Using this in my RV with a 3000 Watt inverter.  250 Amp rated busbars are not enough when you add in solar panels.  This is the first 400 Amp busbar I’ve found to solve my problem.  Love that its rebuildable.  It comes with everything needed like the mounting screws and cover plate.  In comparing this to the cheaper Chinese busbars this one has a thick solid copper plate, the Chinese ones have a thin piece of steel.

Needed a pair of bus bars to connect 2 LiFePo battery banks and 2 inverters. These did the trick. Replaced single stud terminals with these, now it's much easier and safer to disconnect just one cable if needed. One suggestion though, to enlarge the holes in the covers, as the studs tend to misalign as they are tightened down, which makes the covers hard to put on.

just what I needed for RV solar install, would recommend

As it should it just works!