NC MCB

Adapt To More Ambient Temperature NC Mini Circuit Breaker Mcb

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Adapt To More Ambient Temperature NC Mini Circuit Breaker Mcb
Adapt To More Ambient Temperature NC Mini Circuit Breaker Mcb
Adapt To More Ambient Temperature NC Mini Circuit Breaker Mcb
Adapt To More Ambient Temperature NC Mini Circuit Breaker Mcb
Adapt To More Ambient Temperature NC Mini Circuit Breaker Mcb
Adapt To More Ambient Temperature NC Mini Circuit Breaker Mcb
Adapt To More Ambient Temperature NC Mini Circuit Breaker Mcb

Application:

For protecting equipment against overload and short circuit

General 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 63,80,100,125
Poles   1P,2P,3P,4P
Rated voltage Ue V 230/400
Insulation voltage Ui V 500
Rated frequency Hz 50/60
Rated breaking capacity Ka 6~10
Rated impulse withstand voltage(1.2/50)Uimp V 6000
Dielectric test voltage at ind.Freq.for 1 min Kv 2.5
Pollution degree   3
Thermo-magnetic release characteristic   8-12In
Mechanical
features
Electrical life   1500(In=63A,80A,100A)
1000(In=125A)
Mechanical life   8000(In=63A,80A,100A)
7000(In=125A)
Contact position indicator   Yes
Pollution degree   IP20
Standard   IEC/EN 60947-2
Reference temperature for
setting of thermal element
30
Ambient temperature -5...+40(Special application please refer to P29 for temperature compensation correction)
Combination
with
sccssorles
(with daily average≦35℃)  
Storage temperation Terminal connection type -25..+70
  Cable/pin-type busbar
Terminal size top/bottom for cable mm2 50
AWG 18-1/0
Terminal size top/bottom for busbar mm2 50
AWG 18-1/0
Tightening torque N*m 3.5
In-Ibs. 3.1
Mounting   On DN rail EN 60715(35mm)by meas of fast clip device 
Connection
Auxilary contact
  From top 
Auxilary contact   Yes
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

NC MCB.pdf

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