A panelboard is an electrical distribution board that splits an electrical power feed into different circuits. It's also known as a distribution board or breaker panel. 

What does a panelboard do? Receives power from a switchboard, Distributes power to individual circuits, Protects circuits from overloads and short circuits, and Safeguards electrical equipment and human life. 

How is a panelboard structured?

• Typically consists of a back panel with the main breaker or main lugs 
• Also has branch breakers or fusible switches that distribute power to individual circuits 
• Is usually enclosed in a metal cabinet 
• Is typically placed in or against a wall 

What types of panelboards are there? Lighting and appliance and Power and distribution.