Chint NBH8-40 NBH4-40H Mini Circuit Breaker 1P+N DPN 1A 2A 3A 4A 6A 10A 16A 20A 25A 32A 40A Chint NBH8 MCB
Product Description
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 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.
Technique Parameters
Size
Curve
