The bottom entry and exit strategy not only provides structural stability, but also makes troubleshooting a lot easier. Also, separating the 120-volt source wires from the field terminal strip is indeed a wise advice, as it effectively mitigates the risk of misconnections and. Bottom entry means that when the holes are drilled for the conduit ports, chips do not land on your equipment or get rapped in the terminals, causing problems down the road. Top entry is fine, there are problems associated with cable or wire support - sticky back tie wrap supports will always come. It may be advisable to not connect the 120-volt source wires to the bottom of the field terminal strip, as this could be potentially risky. Additionally, a plinth can be used to raise the panel. Mounted on the machinery—In some cases, the electrical panel is mounted directly on the machine.
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