2. TECHNICAL DATA
2. TECHNICAL DATA
Standard
IEC 60947-2
Rated current In Rated voltage Ue Rated frequency
A
1、2、3、4、6、10、16、20、25、32、40、50、63
007
008
V
230 / 400
Hz
50
Poles
1P, 1P+N, 2P, 3P, 3P+N, 4P
NB8-63
NB8-63H
Thermo-magnetic release characteristic
B(3-5In)，C(5-10In)，D(10-16In)，
Mechanical life
20,000 10,000 10,000
Electrical life Rated breaking capacity
1. General
1. General
A V
Insulation voltage Ui
500
1.1 Function protection of circuits against short-circuit currents, protection of circuits against overload currents, switch, isolation. NB8 -63 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 inrush current. D curve(10-16In) protection for circuits which supply loads with high inrush current at the circuit closing (LV/LV transformers, breakdown lamps). 1.3 Certificate CE
1.1 Function Protection of circuits against short-circuit currents, protection of circuits against overload currents, switch, isolation. NB8 -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 inrush current. D curve(10-16In) protection for circuits which supply loads with high inrush current at the circuit closing (LV/LV transformers, breakdown lamps). 1.3 Certificate CE KV 6
Rated impulse withstand voltage (1.2/50) Uimp
NB8-63
NB8-63H
2. Technical features
2. Technical features
Standard
IEC 60898-1
Standard
IEC 60947-2
Rated current In Rated voltage Ue Rated frequency
A 1 、 2 、 3 、 4 、 6 、 10 、 16 、 20 、 25 、 32 、 40 、 50 、 63
Rated current In Rated voltage Ue Rated frequency
A 1 、 2 、 3 、 4 、 6 、 10 、 16 、 20 、 25 、 32 、 40 、 50 、 63
V 230/400
V 230/400
Hz 50
Hz 50
Poles
1P, 1P+N, 2P, 3P, 3P+N, 4P B(3-5In), C(5-10In), D(10-16In)
Poles
1P, 1P+N, 2P, 3P, 3P+N, 4P B(3-5In), C(5-10In), D(10-16In)
Thermo-magnetic release characteristic
Thermo-magnetic release characteristic
Mechanical life
20,000 10,000
Mechanical life
20,000 10,000
Electrical life
Electrical life
Rated breaking capacity Insulation voltage Ui
A 6000
Rated breaking capacity Insulation voltage Ui
A 10,000
V 500 Rated impulse withstand voltage (1.2/50) Uimp KV 6
V 500 Rated impulse withstand voltage (1.2/50) Uimp KV 6
3. Curve
3. Curve
t(S)
t(S)
t(S)
(S)
B curve (3~5In)
C curve (5~10In)
D curve (10~16In)
CHINT
02
CHINT
02
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