Description
Type A Single Module 20A B Curve 30mA Arc Fault Detection Device
WCED WFD120B-030
The WCED WFD120B-030 AFDD is a 20A-rated advanced protection device that integrates a 30mA Type A bi-directional RCBO with an Arc Fault Detection Device (AFDD). It continuously monitors electrical waveforms, detecting and disconnecting hazardous arc faults, overloads, short circuits, and earth leakage faults. The switched neutral feature ensures full disconnection of the faulty circuit, reducing fire risks and enhancing electrical safety in both residential and commercial environments.
Key Features:
- 20A Rated Current
- 30mA Type A RCBO + AFDD
- Series & Parallel Arc Fault Detection
- Short Circuit & Overload Protection
- Overvoltage Trip at 275V ±5%
- Switched Neutral
- DIN Rail Mounting
- LED Fault Indicators
- Self-Testing Function
Why Choose This Product?
This device provides superior fire prevention and electrical safety by detecting arc faults before they lead to dangerous situations. Its integration of a Type A RCBO and AFDD ensures compliance with BS 7671, making it a reliable choice for circuits handling moderate power loads.
Where Is It Required? (BS 7671:2018)
BS 7671 recommends AFDDs for circuits supplying accommodations, such as houses in multiple occupation (HMOs), student housing, and commercial buildings, where electrical safety and fire prevention are essential.
