The WFD106B-030 is a 6A, B Curve Arc Fault Detection (AFDD) RCBO, combining arc fault detection, residual current protection (30mA), short-circuit, and overload protection into a single compact module. Built to BS 7671:2018 (18th Edition) standards, it delivers the highest level of fire prevention for modern installations.

Unlike a standard RCBO, this device features a microprocessor-controlled Arc Fault Detection Device (AFDD). It continuously monitors the electrical waveform, identifying dangerous arcs caused by worn wiring, poor terminations, ageing circuits, or faulty appliances. When detected, it trips instantly, disconnecting live and neutral conductors to eliminate fire risk.

Protective Coverage

The WFD1 series combines AFDD, MCB, and Type A RCD functionality, protecting against:

• Arc faults – series and parallel
• Overload and short-circuit events
• Residual current leakage – Type A (AC + pulsating DC)
• Overvoltage conditions – trips at 275V ±5%

Variant Comparison