ABB Protecta Plus S203M-C20 Miniature Circuit Breaker • 3 Pole • 20A Type C • 440V AC / 12V DC • 10kA Breaking Capacity • DIN Rail Mount • System pro M Compact • Industrial MCB • 2CDS273001R0204

• THREE-PHASE CIRCUIT PROTECTION – ABB S203M-C20 3-pole 20A miniature circuit breaker protects circuits from overload and short-circuit faults. Ideal for DIN rail distribution boards, switchboards, control panels and industrial electrical systems.
• TYPE C TRIPPING PERFORMANCE – Type C tripping curve trips at 5–10× rated current, supporting moderate inrush loads from motors, pumps, compressors and lighting circuits. Suitable for automation systems, machinery panels and electrical installations.
• DIN RAIL INSTALLATION – Compact 3-pole breaker snaps onto standard DIN rails for quick installation in switchboards and distribution boards. Finger-safe screw terminals ensure secure wiring and compatibility with ABB System pro M Compact accessories.
• 10KA BREAKING CAPACITY – High 10kA fault interruption safely cuts power during short circuits. Thermal overload and magnetic short-circuit protection help safeguard wiring, equipment, electrical panels and three-phase distribution systems.
• 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-C20 Miniature Circuit Breaker is a dependable circuit protection device designed to safeguard electrical systems from overloads and short circuits. Part of the ABB System pro M Compact S200M series, it is widely used in industrial, commercial and electrical distribution applications. This 3-pole 20A miniature circuit breaker features a Type C tripping characteristic, making it suitable for circuits with moderate inrush currents such as motors, pumps, compressors and lighting systems. The breaker integrates thermal overload protection and electromechanical short-circuit protection, ensuring reliable interruption of fault currents. With a 10kA breaking capacity, it protects wiring, equipment and electrical panels from high fault currents. The compact design allows fast DIN rail installation in switchboards and distribution panels. The device also includes finger-safe terminals and a contact position indicator for safe operation and quick status checks. 3-pole miniature circuit breaker 20A current rating Type C tripping characteristic 10kA short-circuit breaking capacity Rated voltage up to 440V AC / 12V DC DIN rail mount installation Shock and vibration resistant design Complies with IEC/EN 60898 standards