Description

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 curves: