3 Pole 6A Miniature Circuit Breaker NB163 3P C6 6kA with Arc Fault Protection and Three Phase Design

Miniature Arc Fault Circuit Breaker NB163 3P C6 6kA(R) Overview This NB163 3P C6 6kA(R) miniature circuit breaker combines arc fault detection with overcurrent protection in a compact three pole package. It is designed to reduce the risk of electrical fires caused by arcing faults while also providing reliable overload and short circuit interruption. Key benefits Arc fault protection plus circuit breaking: Detects dangerous arcing conditions and isolates the circuit quickly to reduce fire hazard, while still performing standard overcurrent and short circuit interruption. Three pole design for three phase systems: Provides simultaneous disconnection of all three phases to protect balanced and unbalanced loads. Clear performance specification: Rated current C6 (6 amp trip characteristic) and rated breaking capacity 6kA deliver predictable response and safe interruption under fault conditions. Compact, space saving form factor: Miniature design fits into limited panel space to simplify installation and enable higher circuit density. Accurate and fast operation: Ctype trip curve delivers reliable nuisance tripping for common inductive loads while responding rapidly to real fault currents. Important attributes Model and size: NB163 3P C6 6kA(R) miniature circuit breaker. Function: Arc fault detection combined with overcurrent and short circuit protection. Poles: 3P, suitable for three phase circuits. Rated current and trip curve: C6 indicating nominal 6 amp rating with Ctype instantaneous characteristic. Breaking capacity: 6kA, specifying the maximum fault current the device will safely interrupt. Practical applications Small commercial distribution: Protect three phase lighting and general power circuits in offices, retail spaces, and small commercial buildings where arc fault protection is required. Light industrial motor circuits: Provide combined arc fault and overcurrent protection for small motors and machine feeders that operate on three phase supplies. Residential and multiunit panels: Use in apartment or townhouse distribution panels that require compact three pole protection for shared three phase circuits. Why choose this model Provides targeted protection against arc faults while maintaining standard circuit breaker functions. Designed for reliable operation in three phase installations with a defined breaking capacity and trip characteristic. Compact miniature format helps conserve panel space without sacrificing protective performance. Basic installation notes Intended for use in three phase circuits with matching system voltage and coordination to downstream devices. Select appropriate upstream and downstream protective settings and wiring practices to ensure correct operation and selectivity. This description covers the NB163 3P C6 6kA(R) miniature arc fault circuit breaker capabilities and typical applications to help determine suitability for your electrical protection needs.