✅ ABB FH204 AC – 4P Residual Current Circuit Breaker 163A, 30mA (Part No.: 2CSF204006R1630) The ABB FH204 AC 63A RCCB provides secure protection against electrical leakage in four-wire networks, suitable for industrial-grade systems. Technical Specifications: Part Number: 2CSF204006R1630 Model: FH204 AC Rated Current: 63A Sensitivity: 30mA Type: Residual Current Circuit Breaker (RCCB) Poles: 4P Applications: Manufacturing plants, 3-phase loads Mounting: DIN rail