✅ ABB DS203 AC-C20/0.03 – 3P RCBO 20A, 30mA (Part No.: 2CSR253001R1204) The ABB DS203 AC-C20/0.03 is designed for 20A triple-pole loads, integrating residual current and overcurrent protection for safer distribution. Technical Specifications: Part Number: 2CSR253001R1204 Model: DS203 AC-C20/0.03 Rated Current: 20A Sensitivity: 30mA Type: RCBO Poles: 3P Tripping Curve: C Applications: Distribution boards, general-purpose 3-phase loads Mounting: DIN rail