ABB Protecta Plus S303P-D40 Miniature Circuit Breaker 3 Pole 40 A Type D 415 V AC 20 kA Breaking Capacity Industrial MCB DIN Rail System pro M Compact 2CDS383001R0401

INDUSTRIAL CIRCUIT PROTECTION – 3-pole miniature circuit breaker for three-phase power distribution in industrial panels, switchboards and machinery control cabinets, protecting installations against overload and short-circuit faults. 40 A TYPE D FOR MOTOR LOADS – Rated 40 A with Type D tripping curve designed for high inrush current equipment such as motors, pumps, compressors and transformers, helping prevent nuisance tripping during equipment start-up. DIN RAIL INSTALLATION & BUSBAR WIRING – Quick DIN rail mounting with dual release mechanism for easy installation or replacement; terminals allow top or bottom supply and support cable or busbar connections in distribution boards. TRIP INDICATOR & SAFE TERMINALS – Integrated trip indicator shows breaker status after a fault for quick troubleshooting, while fail-safe terminals help prevent incorrect wiring and ensure secure connections in switchboards and power 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.