Schneider Electric M9R12463 is a four-pole residual current circuit breaker (RCCB) in the Multi9 GFP family, rated for 63 A with 86 mA residual current and configured as a 4P device for three-phase plus neutral, identified as an A-SI type. This GFP-rated RCCB protects circuits against earth leakage by rapidly tripping when an imbalance is detected, helping to safeguard both people and equipment in distribution panels.
