A Main Switch Board or Electric switchboard is a device that directs electricity from one or
more sources of supply to several smaller regions of usage. It is an assembly of one or more panels, each of
which contains switches that allow electricity to be redirected. The role of a switchboard is to allow the division
of the current supplied to the switchboard into smaller currents for further distribution and to provide
switching, current protection and (possibly) metering for those various currents. In general, switchboards may
distribute power to transformers, panel boards, control equipment, and, ultimately, to individual system loads.
A Distribution Panel or Distribution Board (also known as panel board or breaker panel) is a
component of an electricity supply system which divides an electrical power feed into subsidiary circuits, while
providing a protective fuse or circuit breaker for each circuit, in a common enclosure. Normally, a main switch,
and in recent boards, one or more residual-current devices (RCD) or residual current breakers with overcurrent
protection (RCBO), are also incorporated.
Auto Mains Failure Panel / Auto Transfer Panel
Automatic mains failure (AMF) panels, also referred to as automatic transfer switch (ATS)
panels, make the power switch to emergency standby generators in the event of a significant loss of mains
power or total blackout. Without AMF panels, generators need to be operated manually and that can mean lost
data, potential damage to electrical equipment and huge amounts of disruption.
A Feeder Pillar is a cabinet for electrical equipment, mounted in the street and controlling the
electrical supply to a number of houses in a neighborhood. A Feeder Pillar is simply a layman's term for a
transformer, cutout enclosure, or other enclosure used in conjunction with underground electrical distribution.