Legrand RCBO 410963, 1P+N, 10A, B-Curve, 30mA, Type A, 6kA

The Legrand 410963 is a high-quality residual current circuit breaker with overcurrent protection (RCBO), designed to provide integrated safety for electrical circuits. This 1P+N device combines the functions of a miniature circuit breaker and a residual current device in a single compact unit, effectively protecting against overloads, short circuits, and dangerous earth leakage currents. With a 10A rated current and B-curve tripping characteristic, it is engineered for precision and reliability in modern electrical distribution systems.

Advantages

The primary benefit of this RCBO is its space-saving design, which allows for efficient installation in distribution boards by combining two protective functions into one module. The Type A sensitivity ensures reliable detection of both alternating and pulsating direct residual currents, offering a higher level of safety compared to standard AC types. Its 6kA breaking capacity provides robust performance under fault conditions, ensuring the integrity of the electrical installation and connected equipment.

Suitable for

• Residential electrical distribution boards
• Commercial office lighting and power circuits
• Protection of individual final circuits
• General purpose electrical installations requiring earth leakage and overcurrent protection

This device may not be suitable for industrial applications requiring higher breaking capacities exceeding 6kA or for circuits with high inrush currents that might cause nuisance tripping due to the B-curve characteristic. It is also not intended for use in DC-only electrical systems.

Key specifications

• Rated current: 10A
• Tripping characteristic: B-curve
• Sensitivity: 30mA
• Residual current type: Type A
• Breaking capacity: 6kA
• Configuration: 1P+N

Installation should be performed by a qualified electrician in accordance with local electrical regulations. The device is designed for mounting on a standard DIN rail within a consumer unit or distribution board. Ensure that the supply cables are correctly terminated and tightened to the specified torque settings to prevent overheating and ensure a secure electrical connection.

What to consider before purchase

• Verify that the 10A rating matches the load requirements of your circuit
• Ensure the B-curve characteristic is appropriate for your specific appliances
• Check that the 30mA sensitivity meets local safety standards for the intended area
• Confirm compatibility with your existing DIN rail distribution board

Usage recommendations: Regularly test the device using the integrated test button to ensure the mechanical tripping mechanism remains functional. It is recommended to perform this check at least every six months to maintain optimal safety levels.