
A Panelboard is defined by the NEC
as:
a single panel or group of panel units designed for assembly in the form of a single panel,
including buses and automatic overcurrent devices, and equipped with or without switches
for the control of light, heat, or power circuits; designed to be placed in a cabinet or cuto ut
box placed in or against a wall, partition, or other support; and accessible only from the
front. [15]
Switchgear
Power switchgear assemblies are normally associated with larger elec trica l installations
found in industrial or commercial structures or facilities. They can be used as s ervice
disconnects to f eed and/or control motor control ...