The Schneider Electric A9N16210 is a 2-pole residual current circuit breaker (RCCB) from the Acti9 xID range, rated 63 A with 300 mA earth-leakage sensitivity, Type AC. The 300 mA sensitivity suits general-purpose earth-leakage protection where a higher trip threshold avoids nuisance tripping from normal leakage in fixed equipment or long cable runs. Type AC detection responds to sinusoidal AC residual currents only.
Rated 63 A continuous at 230-240 V AC, this RCCB handles the full load current of a typical main distribution board or submain feeding multiple final circuits. Insulation voltage rated 500 V AC gives headroom above the operating voltage, so the internal clearances and creepage distances are designed for that higher stress. Pollution degree 2 (non-conductive pollution only, occasional condensation) is the standard for enclosed electrical panels. Mechanical and electrical durability both rated 4000 cycles — this is a protection device, not a daily-switching contactor, so the cycle count reflects the expected life in a distribution board where it operates only on fault or periodic test.
Wire stripping length 14 mm for top or bottom connection. The padlocking device allows locking in the OFF position for isolation during maintenance — the contact position indicator confirms the state visually.
Standards and lifecycle
Designed to IEC 61008-1 and EN 61008-2-1, the main standards for residual current circuit breakers without integral overcurrent protection. IP20 rated for finger-safe installation inside a panel enclosure. Tropicalisation level 2 per IEC 60068-1 for damp-heat environments.