Arc Fault Circuit Breaker (AFCI Breaker) is the latest Arc Fault Detection Device. Its main function is to detect and identify dangerous earthing arc faults, parallel arc faults and series arc faults, and to drive the device operation that cut off current timely to avoid electrical fires. When arc fault occurs, due to the low current intensity, lower than setting values of overcurrent protection which are installed in power system, especially widely in low-voltage distribution field, installing AFCI circuit breaker in the distribution line terminal can promptly find the arc and cut off the circuit, effectively reduce the damage caused by the arc.
Fault arc circuit breaker is an Arc Fault Protection Devices, integrated design of MCB and RCCB, which can detect and identify faulted arcs and normal operating arcs in the circuit. Prevent the fire hazard caused by the arcing faults such as poor contact and bad insulation in the electric circuit. Set Arc Fault Detection Device, overload protection, short circuit protection, overvoltage protection, surge suppression, leakage protection into one.