This is bar none the worst electrical enclosure I have ever worked with in my life, especially considering that it costs $200. The screws are coarse threaded into the plastic body, and have very little space to thread. The clamping bar has only two screws, and the threads don't even reach the body when PV wires are in place- you'll need a C clamp and an extra set of hands to even make it THINK about catching and holding. Good luck if you strip one of the two screws, which is surprisingly easy to do even if you are careful. 1/10 would not buy again.
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