ABB Protecta Plus S303P-B20 Miniature Circuit Breaker 3 Pole 20A Type B 415V AC / 125V DC 25kA Breaking Capacity DIN Rail System pro M Compact Industrial MCB 2CDS383001R0205

THREE-PHASE CIRCUIT PROTECTION – 3-pole miniature circuit breaker for protecting three-phase circuits in switchboards and distribution boards from overload and short-circuit faults. Suitable for commercial buildings and industrial electrical systems. 20A TYPE B TRIPPING CURVE – Rated 20A with Type B characteristic for circuits with low inrush current such as lighting and heating circuits. Helps maintain reliable protection while reducing nuisance tripping in building power distribution systems. DIN RAIL INSTALLATION – Compact circuit breaker designed for quick DIN rail mounting in switchboards and electrical cabinets. Supports cable or busbar wiring with top or bottom supply for flexible installation in distribution boards and panels. STATUS INDICATOR & SECURE TERMINALS – Red/green contact indicator clearly shows breaker ON/OFF status for easy inspection. Screw terminals ensure secure wiring connections for reliable installation in switchboards and electrical control panels. 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.