2CSR256140R1204 ABB - DS203NC C20 A30

The ABB DS203NC C20 A30 is a compact and highly reliable residual current circuit breaker with overcurrent protection (RCBO), designed for comprehensive electrical safety. This device combines the functionalities of a residual current device (RCD) and a miniature circuit breaker (MCB) in a single, space-saving unit. It offers protection against overload, short circuits, and earth fault currents, ensuring the safety of both people and equipment. The DS203NC series is known for its robust construction and dependable performance in various applications. Featuring a 3P+N (three-pole plus neutral) configuration, it is suitable for three-phase systems with a neutral conductor. The C curve tripping characteristic makes it ideal for circuits with moderate inrush currents, such as lighting and general-purpose circuits. With a rated current of 20A and a sensitivity of 30mA, it provides effective protection against potentially dangerous leakage currents. The device has a breaking capacity of 6kA, ensuring it can handle significant fault currents. It complies with Type A standards, meaning it is sensitive to both AC and pulsating DC residual currents.