AFD9-63 Arc Fault Detection Device（AFDD+Isolator）

An AFDD (Arc Fault Detection Device) is a protective device designed to detect dangerous electrical arc faults in circuits. When an arc fault is detected, it disconnects the circuit to help prevent electrical fires.

Arc faults are typically caused by damaged cables, loose terminals, aging insulation, broken conductors, or poor electrical connections. These faults can generate heat and sparks, increasing the risk of fire.

An AFDD continuously monitors the current waveform in the circuit. When it detects abnormal arc characteristics associated with hazardous electrical faults, it disconnects the circuit to reduce the risk of fire.

An RCBO protects against overload, short circuit, and earth leakage, while an AFDD is specifically designed to detect dangerous arc faults. Some advanced devices combine AFDD and RCBO functions for more complete circuit protection.

AFDDs are recommended for residential buildings, commercial spaces, sleeping areas, and locations with combustible materials or valuable equipment, where arc fault protection can help reduce fire risk.

Arc faults are a hidden electrical hazard that traditional breakers may not detect effectively. Arc fault protection helps identify these dangerous conditions early and disconnect the circuit before they lead to overheating or fire.

Depending on the device design, AFDDs can detect series arc faults, parallel arc faults, and earth arc faults, helping improve electrical fire prevention in low-voltage distribution systems.

AFDD technology is defined under IEC 62606, and its use is recommended in certain applications and environments where enhanced fire protection is needed. Specific requirements may vary depending on local electrical regulations.

Yes. AFDDs are designed to detect dangerous arc faults at an early stage and disconnect the circuit before the fault develops into a fire hazard, making them an important part of modern electrical safety.

AFDD devices are available in multiple current ratings for different distribution applications. For the AFD9-63 series shown in the catalogue, the rated current range includes 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, and 63A.