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NC AC MCB
NC AC MCB
NC AC MCB
NC AC MCB
NC AC MCB
NC AC MCB

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NC AC MCB

20NC (1).jpg

20NC (2).jpg

20NC (2).jpg

NC-100 MINI CIRCUIT BREAKER
GENERAL
1.1Application:
For protecting equipment against overload and short circuit
1.2General rules for choosing MCB
Technicala data of the network at the point considered:
The earthing systems(TNS,INC),Shrot-circuit current at the circuit-breaker installatino point,which must always be less than the breaking capacity of this device,Networl normal voltage.


Standard


IEC/EN 60947-2

Electrical
features

Rated current In

A

Poles


Rated voltage Ue

V

Insulation voltage Ui

V

Rated frequency

Hz

Rated breaking capacity

Ka

Rated impulse withstand voltage
(1.2/50)Uimp

V

Dielectric test voltage
at ind.Freq.for 1 min

Kv

Pollution degree


Thermo-magnetic release characteristic


Mechanical
features

Electrical life


Mechanical life


Contact position indicator


Pollution degree


Standard


Reference temperature for
setting of thermal element

Ambient temperature

Combination
with
sccssorles

(with daily average≤35℃)


Storage temperation Terminal
connection type


Terminal size top/
bottom for cable

mm2

AWG

Terminal size top/
bottom for busbar

mm2

AWG

Tightening torque

N*m

In-Ibs.

Mounting


Connection
Auxilary contact


Auxilary contact


Rated current
In (A)

Temperature compensation coefficient under various operational temperature


-10℃

0℃

10℃

20℃

30℃

40℃

50℃

55℃

60℃

63

1.28

1.21

1.14

1.07

1.00

0.84

0.87

0.85

0.82

80

1.22

1.16

1.11

1.05

1.00

0.95

0.91

0.88

0.86

100

1.22

1.18

1.11

1.05

1.00

0.95

0.91

0.88

0.88

125

1.22

1.16

1.11

1.05

1.00

0.95

0.91

0.88

0.86


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