NBH8 Miniature Circuit Breaker

1.1 Function

protection of circuits against short-circuit currents,protection of circuits against overload currents,switch,isolation.
 

1.2 Selection

Technical data of the network at the point considered:the earthing systems (TNS, TNC),

short-circuit current at the circuit-breaker installation point, which must always be less than the breaking capacity of this device,network normal voltage.
 

Tripping curves:

B curve (3-5In)

protection for people and big length cables in TN and IT systems.
 

C curve (5-10In)

protection for resistive and inductive loads with low inrush current.
 

1.3 Approvals and certificates

Detailed information, please refer to Certificates Table on the last page.

Catalog

NBH8 Miniature Circuit Breaker Sample.pdf