ABB Protecta Plus S303P-B50 Miniature Circuit Breaker 3 Pole 50 A Type B 415 V AC / 125 DC 25 kA Breaking Capacity DIN Rail System pro M Compact Industrial MCB 2CDS383001R0505

THREE-PHASE CIRCUIT PROTECTION – 3-pole miniature circuit breaker for protecting three-phase circuits in switchboards and distribution boards against overload and short-circuit faults. Ideal for commercial and industrial electrical installations. 50 A TYPE B TRIPPING CURVE – Rated 50 A with Type B characteristic for circuits with low inrush current such as lighting systems, heating circuits and general electrical loads in commercial and industrial power distribution networks. DIN RAIL INSTALLATION – Compact circuit breaker for quick DIN rail mounting in switchboards and control cabinets. Supports cable or busbar wiring with top or bottom supply, enabling flexible installation in distribution boards and electrical panels. STATUS INDICATOR & SECURE TERMINALS – Red/green contact indicator clearly shows breaker ON/OFF status for easy inspection. Robust screw terminals ensure secure wiring connections in switchboards, control panels and industrial electrical 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.