Circuit Protection

Electronic circuit protectors use microprocessors to monitor and process current, actuate semiconductor switches, provide precise setting options and short reaction times, and protect delicate downstream electronics. Multi-channel models distribute and monitor load currents over several circuits. Circuit protection starts with protective devices including circuit breakers, switchgear, fuses and protective relays.
Electrical circuit protection is the purposeful use of a fail-safe device that automatically causes a disruption in an electrical circuit when it recognizes an excess and unsafe load of power in a circuit. Common circuit protection devices and components include circuit breakers, fuses, surge protection and protective relays.