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The Niglon AFDD6B1-16A is a 16A single-pole Arc Fault Detection Device (AFDD) that combines arc fault detection with the overcurrent and residual current protection of a standard RCBO, continuously monitoring the circuit for both serial and parallel arc faults.

Dangerous arcing — caused by damaged cables, loose terminals or worn accessories — is a leading cause of electrical fires and is often missed by conventional MCBs and RCDs. By detecting these faults and disconnecting the circuit, it adds an extra layer of fire protection in support of BS 7671.

Key features

  • 16A rated current with a Type B tripping curve
  • Detects both serial and parallel arc faults
  • 30mA Type A RCD protection, detecting AC and pulsating DC residual currents
  • 6kA breaking capacity
  • Compact single-module design

Specification

  • Product code: AFDD6B1-16A
  • Rated voltage: 230V
  • Rated current: 16A
  • Tripping curve: Type B
  • RCD type: Type A
  • Rated residual trip current: 30mA
  • Breaking capacity: 6kA
  • Serial arc fault protection: Yes
  • Parallel arc fault detection: Yes
  • Cable capacity: 25mm² line in, 10mm² load/neutral out
  • Dimensions (W×H×D): 18 × 113.5 × 66mm
  • Standards: BS EN 61009-1, BS EN 62606

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