Residual current circuit breaker 3P+N 63A curve C 6kA EN61009

1) Complete 3P+N protection: safety for people and equipmentThis 3P+N curve C – 63 A miniature residual current circuit breaker has been designed for installations where simultaneous protection of a three-phase network (the three phases) is required while benefiting from residual current protection via the neutral. It combines in a single device: protection against overloads, protection against short circuits and protection against insulation faults (earth leakage). In the event of current leakage, degraded insulation or accidental energising of a metal casing, disconnection is faster, which helps to reduce the risk of electrocution and limit electrically caused fires.2) Format suited to distribution boards: for workshops, shops and domestic three-phase installationsThis model is suitable for a secondary distribution board and for certain outgoing circuit protection uses (depending on the installation architecture). It is used in workshops and small production units, technical rooms, shops with three-phase equipment, and homes with a three-phase supply (pumps, compressors, machine tools, ventilation, etc.). 3P+N corresponds to a common configuration in Europe: the device manages the three phases and integrates the neutral into the residual current detection logic, for more consistent protection on three-phase networks. A practical solution for optimising space in the board while improving operation.3) Curve C: fewer nuisance trips on standard loadsThe C tripping curve is versatile for the majority of commercial and light industrial installations. It is suitable for circuits with inrush current at start-up: three-phase motors, fans, pumps, compressors, equipment with transformer, etc. It better tolerates transient peaks while remaining responsive in the event of a real fault: better stability, fewer unnecessary interruptions, effective protection in sustained overload or short circuit.4) Technical characteristicsType / function: miniature residual current circuit breaker (overload, short circuit, residual current)Poles: 3P+N (three-phase + neutral)Rated current (In): 63 AOperating voltage: AC 2230 V – 400 VFrequency: 50/60 HzBreaking capacity: 6 kATripping curve: CStandard: EN 61009Category/use: indicated as RCDs and RCCBs in the product marking/positioningSizing note: the choice of a 63 A device must be consistent with the conductor cross-section, the installation method, the ambient temperature, the enclosure ventilation and the actual current drawn. If in doubt, verification by an electrician is recommended.5) Installation and operating adviceInstall with the power off, ideally by a professional. In three-phase systems, reversed conductors or an incorrectly handled neutral can render the protection ineffective or cause repeated tripping. After wiring: check terminal tightening and monitor the temperature of the board under load. If a test button is present, carry out periodic tests. The 6 kA breaking capacity is suitable for many standard boards; near the main incoming supply, it may be useful to assess the site’s prospective short-circuit current before the final choice.