ABB Protecta Plus S203M-D63 Miniature Circuit Breaker • 3 Pole • 63A Type D • 400V AC • 10kA Breaking Capacity • DIN Rail Mount • System pro M Compact • Industrial MCB • 2CDS273001R0631

• THREE-PHASE CIRCUIT PROTECTION – ABB S203M-D63 3-pole 63A miniature circuit breaker protects three-phase circuits from overload and short-circuit faults. Ideal for DIN rail distribution boards, switchboards and industrial electrical panels.
• TYPE D TRIPPING FOR MOTOR LOADS – Type D tripping curve handles high inrush current from motors, transformers and inductive loads. Suitable for industrial machinery, motor control panels, automation equipment and heavy-duty electrical circuits.
• DIN RAIL PANEL INSTALLATION – Compact 3-pole breaker mounts on standard DIN rails in electrical panels and switchboards. Screw terminals ensure secure wiring and compatibility with ABB System pro M Compact accessories for added functions.
• THERMAL & MAGNETIC PROTECTION – Dual tripping system with delayed thermal overload protection and fast magnetic short-circuit protection. Ensures reliable electrical safety and stable circuit protection in commercial and industrial installations.
• ABB PROTECTA PLUS SYSTEM – Part of the ABB Protecta Plus modular distribution system for indoor installations, offering high internal accessibility, removable internal modules for simplified wiring, insulated neutral and earth bars, and an expandable cabinet concept for flexible electrical distribution solutions.

ABB Protecta Plus S203M-D63 Miniature Circuit Breaker is a reliable 3-pole circuit protection device designed for overload and short-circuit protection in residential, commercial and industrial electrical installations. Part of the ABB System pro M Compact S200M series, this miniature circuit breaker features a 63A current rating with Type D tripping characteristics, making it suitable for circuits with high inrush currents such as motors, transformers and industrial equipment. The breaker includes two tripping mechanisms: a delayed thermal tripping mechanism for overload protection and an electromechanical magnetic mechanism for short-circuit protection. This ensures fast response and reliable electrical safety. With a compact DIN rail mounted design, the device fits easily into distribution boards and control panels. It is fully compliant with IEC/EN 60898-1 and IEC/EN 60947-2 standards and compatible with the ABB System pro M Compact accessory range. 3-pole miniature circuit breaker 63A current rating Type D tripping characteristic for inductive loads 10kA breaking capacity Rated voltage: 400V AC / 12V DC DIN rail mounting Thermal and magnetic tripping protection Compliant with IEC/EN international standards