From the course: Electrical Systems: Panel Boards, Frequency Drives, and Transformers
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Panelboards and load centers
From the course: Electrical Systems: Panel Boards, Frequency Drives, and Transformers
Panelboards and load centers
- [Instructor] We should understand the differences between panelboards and load centers. Although they are similar in function, there are some significant differences to be aware of. Generally speaking, when we refer to a panelboard, we're talking about a single- or three-phase apparatus that has a back box, an electrical interior, either a main overcurrent protection, like a circuit breaker, or, an incoming lug section. The interior has busbars that connect to circuit breakers that are bolted on or screwed on, making a solid mechanical electrical connection. Panelboards normally handle higher-amperage loads than load centers, and are found in commercial, institutional, and industrial applications, places such as schools, hospitals, factories, and office buildings. Load centers are almost the same as panelboards except the branch circuit breakers usually snap in, or push on to the busbar using a spring or pressure system holding the circuit breaker into place. Load centers are…
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