PA66 MCB Electric Circuit Breaker,
10KA Electric Circuit Breaker,
Sontuoec Electric Circuit Breaker
SONTUOEC Factory Outlet AC 10KA SNL7 Switch MCB Electric Circuit Breaker SKD Spare Parts Red Cooper
SNL7 series high breaking capacity mini circuit breaker is used in AC50/60Hz, rated voltage of 230V
3, 4 poles 400V, rated current to 63A for overload and short-circuit protection as well as for unfrequented switching under normal case.It is used extensively for industry, commercial and household.This product conform to IEC60898 standard.
1.Application:For protecting cables and equipments against overload and short circuit.
2.General rules for choosing MCB.
a.Technical data of the network at the point considered
The earthing systems,short-circuit current at the circuit breaker installation point,which must always be less than the breaking capacity of this device,network normal voltage.
b.There are 3 curvve characteristics for magnetic operation:
B curve (3-5In) protection and control of the circuits against length cables in TN and IT systems.
C curve (5-10In) protection and control of the circuits against overloads and short-circuits; protection for resistive and inductive loads with low inrush current.
D curve (10-14In) protection and control of the circuits against overloads and short-circuits; protection for circuits which supply loads with high inrush current at the circuit closing (LV/LV transformers,breakdown lamps.)
Product performance description
|Magnetic releases||B curve: between 3and 5 In|
|C curve: between 5and 10In|
|D curve: between 10 and 14In|
|Electro-mechanical endurance||over 6000 cycles|
|Rated current In||A||1,2,4,6,10,16,20,25,32,40,50,63|
|Rated voltage Ue||V||230/400|
|Insulation voltage Ui||V||500|
|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|
|Thermo-magnetic release characteristic||B,C,D|
|Reference temperature for setting
of thermal element
(with daily average ≤35℃)
|℃||-5~+40(Special application please refer to
temperature compensation correction)
|Installation||Terminal connection type||Cable/Pin-type busbar|
|Terminal size top/bottom for cable||mm2||25|
|Therminal size top/bottom for busbar||mm2||25|
|Mounting||on DDIN rail EN 60715(35mm)by means of fast clip device|
|Connection||From top and bottom|
Contact Person: Mr. Sunny Zhang