ABB Protecta Plus S301P-B40 Miniature Circuit Breaker 1 Pole 40A Type B 415V AC / 125V DC 25kA Breaking Capacity DIN Rail System pro M Compact Industrial MCB 2CDS381001R0405

RELIABLE CIRCUIT PROTECTION – ABB S301P-B40 1-pole 40A miniature circuit breaker protects circuits from overload and short-circuit faults. Designed for DIN rail distribution boards and electrical panels in residential, commercial and light industrial power systems. TYPE B TRIPPING CHARACTERISTIC – Fast tripping response to low fault currents, ideal for lighting circuits, socket outlets and residential wiring. Helps protect sensitive electrical loads while maintaining stable operation during normal current flow. EASY DIN RAIL INSTALLATION – Compact 17.5mm module width saves panel space and allows quick DIN rail mounting. Screw terminals ensure secure cable connections while the trip indicator provides clear visual breaker status during maintenance. 25kA BREAKING CAPACITY – Safely interrupts high short-circuit currents to protect wiring, equipment and installations. Rated for 415V AC and 125V DC systems used in distribution boards, switchgear panels and electrical control cabinets. 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.