2CSR246040R1204 ABB - DS203NC L C20 AC30

The ABB DS203NC L C20 AC30 is a three-pole Residual Current Circuit Breaker with Overcurrent Protection (RCBO), designed to provide comprehensive protection against both overload and short-circuit currents, as well as earth fault currents. This device combines the functionality of a Miniature Circuit Breaker (MCB) and a Residual Current Device (RCD) in a single unit, saving space and installation time. It has a C-curve tripping characteristic, making it suitable for applications with moderate inrush currents. The rated current is 20A, and the sensitivity to residual current is 30mA, ensuring rapid disconnection in case of a fault, minimizing the risk of electric shock. It is designed for AC systems. The DS203NC L series offers enhanced immunity to nuisance tripping, improving the reliability of the electrical installation. This RCBO is ideal for residential, commercial, and industrial applications where safety and continuity of service are critical. It complies with relevant IEC standards, guaranteeing performance and safety. The 'L' in the product name signifies a specific design characteristic or feature within the DS203NC series.