Michael S.

Electrical Switchboards – Overcurrent protection – overload, short circuit, discrimination and cascading

Overload protection Overload Protection Overload protection is essential in safeguarding electrical conductors from the thermal effects caused by currents exceeding their rated capacity. When a conductor is subjected to a current higher than its nominal rating but not high enough to qualify as a short circuit, it risks overheating. This condition can lead to insulation damage, equipment failure, or even fire. Overload protection mechanisms are designed to detect and interrupt these excessive currents before they cause harm.