Switches & panels
Residual current devices (RCD/RCCB) explained
RCDs/RCCBs reduce shock and fire risk from earth leakage. Importers should understand sensitivity (mA) and where they sit in the panel hierarchy.
Sensitivity and type
Common sensitivities include 30 mA for personal protection; other values appear in special designs.
Type AC/A/F/B choices depend on loads—confirm with the engineer.
Coordination
Selectivity with upstream devices matters in multi-level boards.
Document the intended use on the sell sheet.
Trade notes
Pair RCDs with MCBs and enclosures in packages.
NMF sources protection devices with clear labelling for export markets.