miniature circuit breaker,
automotive circuit breaker
3 Pole Circuit Breaker IP20 Protection , Plastic Texture Type C Circuit Breaker
ST4-63 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.
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 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.)
|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|
We have competitively price,
we can provide after sale service,
our products are of high quality, they are durable and have long life
Yueqing shantuo has been established for a long time since 2008, We have a good reputation around the world,
We can offer you completive price, Continuance support and good After service, also, our company can ensure the quantity of our Products, they are durable and long life
Contact Person: Mr. Sunny Zhang