3P 40A C 6kA 400V EN61009 residual current circuit breaker

1) Combined 2-in-1 protection for modern consumer unitsThis 3P C40A miniature RCBO combines in a single device protection against overloads and short circuits (circuit breaker function) and protection against insulation faults / current leakage (RCD function). It is a relevant solution for distribution boards in homes, small shops, offices, technical rooms or equipment areas, when you want to increase the level of safety without multiplying modules. In the event of a fault on the line, the device ensures fast, automatic disconnection, helping to limit the risks of electric shock and fires of electrical origin, while simplifying the design and maintenance of the board (fewer elements to wire, clearer identification, reduced space requirement).2) Reliable tripping: it disconnects when needed, at the right momentIn everyday use, an installation may be subject to abnormal situations: progressive overload linked to excessive power demand, dead short circuit, ageing insulation, humidity, fault on an appliance, etc. This model is designed to trip automatically when a critical event occurs, rather than allowing the line to “hold” at the cost of conductor overheating or accelerated insulation deterioration. The benefit is clear: reduced overheating, better control of incidents and more reassuring continuity of service, because the cause of a trip is generally easier to identify when protection is consistent and centralised. For compliant and safe use, sizing (rating, cable cross-sections, selectivity) must be carried out according to the actual installation.3) 3-pole format: ideal for three-phase circuits and simultaneous disconnectionWith its 3P (three-pole) configuration, this RCBO is suitable for three-phase networks or applications requiring simultaneous disconnection of several phases. It is a relevant choice for outgoing ways supplying technical equipment (ventilation, small pumps, motorised systems, air conditioners, light commercial kitchens, workshops) or for sub-boards where consistent phase management is required. The “grouped disconnection” approach helps reduce certain risk scenarios (for example, one phase disconnected while others remain live), and makes operation of the board easier during inspection, isolation and maintenance work.4) C tripping curve: a compromise for common loads and moderate start-upsThe C curve is recommended for versatile uses: socket/lighting circuits, small machines and loads with a moderate inrush current at start-up. It helps avoid nuisance tripping during normal start-up, while maintaining effective fault protection. For equipment with a very high inrush current (certain motorised systems, compressors, specific machines), it is advisable to check compatibility between the start-up profile and the protective device in order to avoid tripping on start-up. In practice, correct selection is made by taking into account the nature of the load, the network configuration, the ambient temperature, as well as operating constraints.5) Main characteristics geared to the EU market (EN 61009) and network compatibility- Product type: RCBO combining circuit breaker + RCD- Number of poles: 3P- Rating: 40 A- Operating voltage: AC 2230 V – 400 V (according to specification provided)- Frequency: 50/60 Hz- Breaking capacity: 6 kA- Curve: C- Standard reference: EN 61009This “EN 61009 + 6 kA + curve C + 3P” positioning makes it a suitable solution for consumer unit upgrade projects, renovation or the creation of outgoing ways requiring complete protection. Installation recommended by a qualified electrician, with checking of tightening torque, conductor cross-section, circuit identification and periodic functional tests.