
Modular | Residual current circuit breaker with over-current protection 2P | 40A | C | 6kA | 0,03A | DIN | RCBO Vecas
Code: RCBO2P403A combined residual current circuit breaker with overload and short-circuit protection (RCBO), designed to ensure both human safety against electric shock and the protection of wiring and equipment against electrical faults. Operating according to the IEC61009-1 standard, this device combines the functions of a circuit breaker and residual current relay in a single enclosure. It is a compact, efficient, and reliable solution for single-phase 230–240 V electrical systems.
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Technical Specifications:
Manufacturer: Vecas
Type: RCBO (Residual Current Circuit Breaker with Overcurrent protection)
Rated voltage (Un): ~240 V AC
Rated current (In): 40 A
Short-circuit breaking capacity (Icn): 6 kA
Residual current sensitivity (Ian): 30 mA (0.03 A)
Characteristic curve: C (suitable for typical residential and industrial loads)
Standard: IEC61009-1
Frequency: 50/60 Hz
Mounting: On DIN rail
Protection type: General protection against:Contact with grounded parts (due to leakage current)
Overload
Short circuit
Functions:
Combined protection against leakage current and overload/short-circuit in one device
Automatic disconnection when leakage current ≥30 mA
Magnetic and thermal overcurrent protection
Compact design – saves space in distribution boxes
Type C curve suitable for lighting systems, household appliances, and standard loads
Operates even if neutral wires are connected incorrectly (high fault tolerance)
Applications:
Electrical networks in residential buildings
Commercial facilities
Lighting circuits
Socket protection
Refrigerators, washing machines, and other household appliances
Situations requiring protection of people from electric shock and installations from short-circuits/overloads
Pros:
Protects both people (leakage current) and equipment (overload and short-circuit)
Compact – saves space in distribution boards
Complies with international IEC61009-1 standard
Reliable operation even in harsh conditions
Suitable for a wide range of household applications
Cons:
Suitable only for single-phase systems
Not for use with high inrush currents – in such cases, a D-curve circuit breaker is recommended
Illustrative image may have been created using AI. The appearance of the product may differ slightly from the image shown. Please refer to the technical specification.The IP protection class indicates the device's resistance to environmental factors.

The first digit indicates protection against dust and solid objects.
The second digit indicates protection against moisture.First digit values:
X — Untested;
0 — No protection;
1 — Protected against solid objects larger than 50 mm;
2 — Protected against solid objects larger than 12.5 mm;
3 — Protected against solid objects larger than 1 mm;
4 — Protected against solid objects larger than 1 mm;
5 — Dust protected;
6 — Totally dustproof.
Second digit values:X — Untested;
0 — No protection;
1 — Protected against vertically falling water drops;
2 — Protected against water drops falling at a 15º angle;
3 — Protected against rain falling at a 60º angle;
4 — Protected against water splashes;
5 — Protected against water jets;
6 — Protected against large amounts of water;
7 — Protected against short-term immersion in water up to 1 meter deep;
8 — Protected against long-term immersion in water up to 3 meters deep.This product is marked with the CE label, which confirms that it complies with all applicable European Union directives and regulations. CE marking is not just a formality – it is an important indicator of quality and safety, ensuring that the product has been properly assessed, tested, and can be safely used throughout the EU market.
CE certification means that the product has been evaluated according to the main criteria:
Safety requirements – ensures that the product does not pose a risk to the user or the environment
Electromagnetic compatibility (EMC) – the device does not interfere with other equipment and is resistant to external disturbances
Environmental standards – complies with current ecological and material usage requirements
Operational reliability – the product is suitable for long-term use according to its intended purposeCE marking allows this product to:
be legally supplied and used in all European Union countries
ensure a high level of quality and safety
be used in residential, commercial, and industrial environmentsThe CE mark is a declaration of the manufacturer’s responsibility, confirming that the product complies with all applicable standards and has been assessed according to EU legislation.
What does this mean for you as a buyer?
Safe use in everyday activities
Reliable performance and reduced risk of failure
Compliance with EU standards and requirements
Suitability for professional solutions
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