Rated 63 A with 100 mA AC-type earth-leakage sensitivity, it protects a 2P circuit on 230 V AC 50/60 Hz networks.
The 63 A [In] rated current matches the upstream MCB's full-load ampacity for a 2P outgoing circuit. The 100 mA sensitivity is a higher threshold than the common 30 mA — it's selected where nuisance tripping from leakage on long cable runs or equipment with natural leakage (heaters, motors with filters) would otherwise cause spurious trips. Clip-on mounting to DIN rail (9 mm pitch, 4 modules wide) means it integrates directly into a standard distribution board alongside the iC65 MCB it connects to via screws. The 73.5 mm depth and 72 mm width keep it within the same envelope as the companion breaker — no extra panel depth needed.
Standards and deployment context
Designed to GB 16917.22, the Chinese national standard for RCDs — this is the governing standard for the Chinese market.