Many technicians opt for tape that can stretch without losing original form. This is helpful in wrapping wires because technicians must often stretch the tape around the cable, which needs to then return to its original form to provide a tight wrap. Lack of elongation can result in broken tape and uncovered cables.
This is simply your control box’s shelter and it is tasked with housing the internal components as well as protecting them physically. They can be the products of distinct materials, which are regulated and rated by NEMA. These materials include fiberglass, metal, and plastic.