In larger electrical systems, where a main circuit breaker might control several sub-panels, it’s important to choose high quality electrical enclosures for all junction boxes in the system. It’s also crucial to check the NEMA and IP ratings of a breaker box, particularly if it’s being installed as part of an outdoor electrical system.
several types of polyethylene film tape in various thicknesses and densities. Tape thickness is measured in mils — one mil is one one-thousandth of an inch. Simply choose the tape that works best for your application.