2CSF204005R1800

The ABB 2CSF204005R1800 (F204 AC-80/0.03) is a high-current, 4-pole Residual Current Circuit Breaker (RCCB) belonging to the advanced F200 series. Engineered to protect higher-capacity three-phase and neutral electrical installations against earth fault currents, it provides critical protection against indirect contact shocks alongside high-sensitivity ($30text{ mA}$) direct contact protection for human safety. Built in strict compliance with IEC/EN 61008 standards, it is widely utilized across demanding commercial, industrial, and heavy residential multi-phase distribution boards.