The National Electrical Code (NEC) calls breaker panels like the one shown here panelboards, a name given to the earliest whole-house electrical systems-including those with switches and screw-in, Edison-type fuses-which were mounted on wooden or asbestos panels. By the mid-1960s, breakers had almost completely replaced Edison-type fuses in new construction, so the old panel-mounted fuse boxes gave way to the metal breaker panels that are still being used today.
展开▼
