Title: Circuit Breaker Switchboard [Print this page] Author: MichealH Time: 2025-4-23 21:01 Title: Circuit Breaker Switchboard A switchboard is a key assembly. It plays a critical role in an electrical distribution system. It divides an power feed into many branch circuits. Each circuit has a breaker or fuse. They are in a common enclosure. This distribution and protection are vital. They prevent electrical overloads and keep electrical networks safe.