KANGYU ELECTRICAL CO., LTD.
Add: NO.136-138,XinGuang Road,XinGuang Industrial Zone, Liushi,Yueqing, Wenzhou, Zhejiang, China 325604
For protecting cables and equipment against overload and short circuit.
1.2 General rules for choosing MCB
a.Technical data of the network at the point considered.The earthing systems(TNS,TNC),Short-circuit current at the circuit-breaker installation point,which must always be less than the breaking capacity of thru device,betwork normal voltage.
b.There are 2 curve characteristics for KBHB magnetic operation.
B.Curve (3-5 In) protection and control of the circuits against overloads and short-circuits,protection for people and big length cables in TN and IT systems.
C.Curve (5-10 In) protection and control of the circuits against overloads and short-circuits,protection for resistive and inductive loads with low inrush current.
|Electrical features||Rated current In||A||1,2,3,4,6,10,13,20,25,32,40|
|Rated voltage Ue||V||230|
|Insulation voltage Ui||V||300|
|Rated breaking capacity||A||4500/6000|
|Rated impulse withstand voltage(1.2/50)Uimp||V||4000|
|Dielectric test voltage at ind. Freq. for 1 min||kV||2|
|Mechanical features||Electrical life||4000|
|Contact position indicator||Yes|
|Reference temperature for setting of thermal element||℃||30|
|Ambient temperature (with daily average ≤ 35℃)||℃||-5...+40(Special application please refer to P32 for temperature compensation correction)|
|Installation||Terminal connection type||Cable/Pin-type busbar|
|Terminal size top/bottom for cable||mm2||16|
|AWG||18 - 5|
|Terminal size top/bottom for busbar||mm2||16|
|AWG||18 - 5|
|Mounting||On DIN rail EN60715(35mm) by means of fast clip device|
|Connection||From top and bottom|
|Combination with accessories||Auxiliary contact||Yes|
|Under voltage release||Yes|
2.3 Temperature derating
Please refer to table below for temperature compensation correction
|Temperature compensation coefficient||1.2||1.15||1.1||1.05||1||0.95||0.9||0.875||0.85|
3. Overall and Mounting Dimensions(mm)