3P+N 50A C curve 6kA residual current circuit breaker EN61009

1) Combined 2-in-1 protection: circuit breaker + residual current device, for overall safetyThis modular RCBO (Residual Current Breaker with Overcurrent protection) 3P+N – C50A combines in a single device two essential protections for an electrical distribution board: protection against overcurrents (overload and short circuit) and residual current protection against insulation faults (risk of current leakage/electric shock). In the event of sustained overload or short circuit, the tripping mechanism cuts off the power supply in order to limit cable overheating and material damage. At the same time, when an insulation fault appears (ageing, humidity, equipment with leakage), the residual current function allows rapid disconnection to reduce the risk of electrocution. Ideal if you are looking for an all-in-one solution for circuits where continuity of service matters as much as safety.2) 3P+N format: suitable for three-phase installations with neutral (residential, commercial, workshop)With its 3P+N configuration, this model is suitable for three-phase networks where the neutral also needs to be managed within the same enclosure. This format is often used in distribution boards supplying three-phase equipment (motors, fans, pumps, small machines, air conditioning/ventilation) or mixed circuits in commercial environments. Integration of the neutral makes wiring easier to organise and improves clarity during maintenance and troubleshooting operations. Suitable in particular for small shops, offices, technical rooms, garages and light workshops.3) Key electrical characteristics: C50A, 50–60 Hz, AC 2230–400 V, breaking capacity 6 kAThis RCBO is rated at 50 A (C50A), intended for circuits whose operating current remains close to (or below) this value, subject to consistent sizing (cable cross-section, terminals, heat dissipation). It is compatible with 50–60 Hz networks and a declared voltage range of AC 2230–400 V (according to the data provided). Its 6 kA breaking capacity meets the standard requirements of many residential and commercial distribution boards. Where potentially higher short-circuit currents are present (close to a transformer), it is recommended to check the prospective fault current.4) C tripping curve: better tolerance to inrush currents, fewer nuisance tripsThe C curve is suitable for loads with inrush current at start-up (motors, small compressors, pumps, switch-mode power supplies, equipment with a transformer or power electronics). Compared with a B curve, it reduces unnecessary disconnections during start-up while maintaining effective protection in the event of a genuine overcurrent. Particularly useful when equipment start-ups are frequent.5) EN 61009 compliance and recommended usesCompliant with EN 61009, this device belongs to the category of RCBOs with overcurrent protection. It helps simplify the distribution board (a single device instead of a circuit breaker + a separate residual current device) and ensures consistent protection on a given outgoing circuit. Recommended in particular in areas with an increased risk of insulation faults: technical rooms, basements, garages, damp areas, or circuits supplying appliances with a metal casing. For optimum installation: follow the 3P+N wiring diagram, ensure the terminals are tightened correctly, and in the event of repeated tripping, diagnose the cause (earth leakage, damaged cable, humidity, appliance fault) rather than oversizing the rating.Note: the rated residual operating current (e.g. 30 mA/100 mA/300 mA), the type of residual current device (AC/A/F), the presence of a test button and the mounting method are not specified; this information can be added for a more standard FR-market product sheet.