2CSR246140R3204 ABB - DS203NC L C20 A300

The DS203NC L C20 A300 is a three-pole Residual Current Circuit Breaker with Overcurrent Protection (RCBO) from ABB, 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 characteristic, which means it trips at 5 to 10 times the rated current, making it suitable for protecting circuits with moderate inrush currents. The rated current is 20A, indicating the maximum current the circuit breaker can handle continuously without tripping under normal conditions. The sensitivity to residual current is 300mA, providing protection against earth leakage currents that could cause electric shock or fire. The DS203NC series is known for its reliability and robust design, ensuring long-term performance in various applications. It is typically used in residential, commercial, and industrial settings to protect electrical circuits and equipment. This RCBO is designed for DIN rail mounting, making it easy to install in standard distribution boards. It enhances electrical safety by quickly disconnecting the circuit in the event of a fault, preventing damage to equipment and reducing the risk of electrical hazards.