miniature circuit breaker,
miniature current circuit breaker
STD11-125 series DC Miniature Circuit Breaker can quickly break the fault currents in DC power distriubtion systems, Especially for the DC system of power projects in measurement and protection screen and electrica screen between leapfrong tripping accident, the series has excellent performance, and avoid the occurence of the fault. The products can protects the solar photovoltaic power generation in the important devices in PV module from high DC reverse current and due to failure of the inveter AC feedback current hazards, to entrue the reliabel operation of solar photovoltaic power generation system. It is used on building and similar places the line facilities of over current portection , can also be used in less frequent break operation. And has small volume , breaking capacity, arcing distance is short, fast closing and installation is convenient.
Rated voltage(Ue): DC 24,48,120,250,500,750,1000
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.)
|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|
When can I get the price?
We usually quote within 24 hours after we get your inquiry. if you are very urgent to get the price, please call us or tell us in your email so that we will regard your inquiry priority.
How can I get a sample to check your quality?
After price confirmation, you can require for samples to check our quality.
If you just need a blank sample to check the design , we will provide you sample for free, as long as you afford the express freight.
Can you do the design for us?
Yes. We have a professional team having rich experience in mcb/rccb design and manufacturing. Just tell us your ideas and we will help to carry out your ideas. It doesn't matter if you do not have someone to complete files. Send us high resolution images, your Logo and text and tell us how you would like to arrange them, We will send you finished files for confirmation.
How long can I expect to get the sample?
After you pay the sample charge and send us confirmed files, the samples will be ready for delivery in 7-15 days. The samples will be sent to you via express and arrive in 7-10 workdays. You can use your own express account or prepay us if you do not have an account.
What about the lead time for mass production?
Honestly, it depends on the order quantity and the season you place the order. The best record we keep is delivering 10000PCS DB Box within a week. Generally speaking, We suggest that you start inquiry two months before the date you would like to get the products at your country.
What is your terms of delivery?
We accept EXW,FOB,CFR,CIF,etc. You can choose the one which is the most convinent or cost effective for you.
Contact Person: Sunny Zhang