1.1 Function
protection of circuits against short-circuit currents,protection of circuits against overload currents,switch,isolation.
NB1-63H circuit-breakers are used in domestic installation, as well as in commercial and industry electrical distribution systems.
1.2 Selection
Technical data of the network at the point considered: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 curve:
C curve (5-10In)
protection for resistive and inductive loads with low inrushcurrent.