NB1-63H Miniature Circuit Breaker

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:

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 inrushcurrent.

      D curve(10-14In)

protection for circuits which supply loads with high inrush current at the circuit closing 

(LV/LV transformers, breakdown lamps).


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:

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 inrushcurrent.

      D curve(10-14In)

protection for circuits which supply loads with high inrush current at the circuit closing 

(LV/LV transformers, breakdown lamps).


2023.10.30-NB1-63H.pdf626.91 KB
NB1-63H2_Datasheet.pdf559.87 KB
NB1-63H manual.pdf882.77 KB
NB1-63 63H 63DC REACH 202408.pdf356.50 KB
NB1-63,63H CE 202311.pdf485.87 KB
NB1-63H BIS 202211.pdf940.31 KB
NB1-63H SIRIM 202402.pdf1.27 MB
NB1-63H EAC 202206.pdf614.94 KB
NB1-63H SLS 230508.pdf3.16 MB
NB1-63H SEMKO 202311.pdf817.40 KB
NB1-63H TüV 202305.pdf1.86 MB
NB1-63H CB 202311.pdf626.92 KB
NB1-63H Carbon Footprint 202311.pdf531.79 KB
NB1-63H NOM 202208.pdf669.04 KB
NB1-63H INMETRO 202211.pdf1.07 MB
NB1-63H SAA 202311.pdf1.07 MB
NB1-63H UKCA 202301.pdf210.32 KB
NB1-63,NB1-63H证书(UL)202104.pdf209.71 KB
NB1-63H_CE.pdf257.99 KB
NB1-63H_CE(60947-2).pdf452.05 KB
NB1-63H-2P_2D(V1).dwg277.19 KB
NB1-63H-1P_3D(V1).igs27.38 MB
NB1-63H-2P_3D(V1).igs27.04 MB
NB1-63H-1P_2D(V1).dwg1.06 MB
NB1-63H-4P_3D(V1).igs51.91 MB
NB1-63H-4P_2D(V1).dwg297.57 KB
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