The Hager NC406A is an industrial and commercial 4-pole miniature circuit breaker engineered for reliable overload and short-circuit protection across 3-phase + neutral power and control networks.

Rated for a sensitive 6 Amp (C6) load with an enhanced 10kA (10,000A) fault interruption capacity, this breaker is designed for low-amperage 3-phase machinery, control transformers, building automation panel feeds, sensitive HVAC fan coils, and UPS distribution circuits where higher 10kA commercial breaking capacity is mandatory.

• Heavy-Duty 10kA Fault Protection: Meets demanding utility, commercial, and industrial specifications beyond standard 6kA residential MCBs.

• True Contact Status Indicators: Front visual window flags directly indicate internal silver contact positions for isolation safety.

• Simultaneous 4-Pole Switching: Interlinked toggles isolate all 3 phases and neutral simultaneously during fault trips.

• Universal DIN Rail Mounting: Fits directly into standard multi-tier distribution boards (DBs and SMDBs).