ABB Protecta Plus S303P-B16 Miniature Circuit Breaker 3 Pole 16A Type B 415V AC / 125V DC 25kA Breaking Capacity DIN Rail System pro M Compact Industrial MCB 2CDS383001R0165

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. Suitable for commercial and industrial electrical installation, 16A TYPE B TRIPPING CURVE – Rated 16A with Type B characteristic for circuits with low inrush current such as lighting circuits, heating systems and control loads. Helps reduce nuisance tripping while maintaining reliable circuit protection. DIN RAIL INSTALLATION – Compact MCB designed for fast 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 control panels. STATUS INDICATOR & SAFE TERMINALS – Red/green contact position indicator clearly shows breaker ON/OFF status for quick inspection. Screw terminals provide secure wiring connections for reliable installation in switchboards and electrical 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.