ABB Protecta Plus S203M-D40 Miniature Circuit Breaker • 3 Pole • 40A Type D • 400V AC / 125V DC • 10kA Breaking Capacity • DIN Rail Mount • System pro M Compact • Industrial MCB • 2CDS273001R0401

ABB Protecta Plus S203M-D40 Miniature Circuit Breaker is a reliable 3-pole circuit protection device designed to safeguard electrical installations from overload and short-circuit faults. It is part of the ABB System pro M Compact S200M series, widely used in residential, commercial and industrial electrical systems. This miniature circuit breaker features a 40A current rating with Type D tripping characteristics, making it suitable for circuits with high inrush currents such as motors, compressors, transformers and industrial machinery. The breaker incorporates thermal and electromechanical tripping mechanisms that provide effective overload protection and fast short-circuit interruption. With a 10kA breaking capacity, it ensures dependable fault protection and safe electrical operation. The compact DIN rail mounting design allows quick installation in distribution boards and control panels. It complies with IEC/EN 60898-1 and IEC/EN 60947-2 standards and is compatible with the ABB System pro M Compact accessory range for expanded functionality. 3-pole miniature circuit breaker 40A current rating Type D tripping curve for inductive loads 10kA short-circuit breaking capacity Rated voltage: 400V AC / 125V DC DIN rail mounting Thermal and magnetic protection mechanisms Suitable for commercial and industrial installations