Arc fault detection devices AFDD are intended for protection against fire. Arc fault detection device AFDD fills in the safety gap existing in the wiring until now – miniature circuit breakers, residual current circuit breakers and fuses – and which promotes installation safety to a higher level. The Arc Fault Detection Device AFDD is a device designed to mitigate the effect of arc fault by circuit disconnection. Arc fault is dangerous unintentional parallel or series arc between conductors. Such effect in the conductor may cause inflammation of insulation and subsequent setting of a building on fire.
OEZ arc fault detection device AFDD is assembled:
- – from arc fault detection unit ARC and miniature circuit breaker LTS/LTK or
- – from arc fault detection unit ARC and residual current circuit breaker with overcurrent protection OLI/OLE.
Arc fault detection unit ARC (AFD unit) detects series and parallel arc faults and in case of a fault disconnects the circuit and prevents from fire. Circuit disconnection is ensured by a miniature circuit breaker LTS/LTK or residual current circuit breaker with overcurrent protection OLI/OLE, which is mechanically and electrically connected with its own arc fault detection unit.