ABB Protecta Plus S303P-B40 Miniature Circuit Breaker 3 Pole 40 A Type B 415 V AC / 125 DC 25 kA Breaking Capacity DIN Rail System pro M Compact MCB 2CDS383001R0405

THREE-PHASE CIRCUIT PROTECTION – 3-pole miniature circuit breaker designed to protect three-phase circuits in switchboards and distribution boards from overload and short-circuit faults in commercial and industrial installations. 40 A TYPE B TRIPPING CURVE – Rated 40 A with Type B tripping characteristic for circuits with low inrush current such as lighting and heating circuits. Provides reliable protection for general power distribution in buildings and installations. DIN RAIL INSTALLATION – Compact circuit breaker designed for quick DIN rail mounting in switchboards and electrical cabinets. Supports top or bottom supply and cable or busbar connections for flexible and efficient installation. STATUS INDICATOR & SECURE TERMINALS – Red/green contact indicator clearly shows breaker ON/OFF status for easy inspection. Screw terminals ensure secure wiring connections and dependable operation in electrical panels and switchboards. 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.