residual current circuit breaker rccb,
residual current circuit breaker
125A High Quality STFP60-125 2P,4P Single ,Three Phase 230/400V RCCB Circuit Breaker A or AC model IEC61008 Standard
The RCCB is mainly suitable for use in variety of plants and enterprises, building construction, commerce, guesthouses and families, it can be used in circuits up to single phase230V, three phase 400V 50 to 60 Hz. RCCB is also suitable for use on DC pulse system.
Residual Current Circuit Breaker with Over Current Protection is used to protect against electrical leakage in the circuit of 50/60Hz, rated voltage 230/400V,rated current up to 40A.
When electirc shock happens or the residual current more than the fixed value, the RCCB can cut off the power within 0.1s automatically protecting the personal safety and preventing the equipement from the fault resulted from the residual current.
So the RCCB can protect the circuit against overload, short circuit and electrical leakage
Each phase of conductor at the circuit breaker passes through the zero-sequence current transformer, and the secondary side of coil connects with the electromagnetic tripper. Under normal condition, the vector sum of each phase of current passing through zero-sequence current transformer is zero. The flux of the zero-sequence current transformer is zero. And the secondary output voltage is zero and the circuit breaker doesn't zero, and the zero-sequence current transformer would produce the magnetic flux, and the secondary side of coil would output the voltage. Once the leak current increases to drive the output voltage at the secondary side to grow to certain level, the electromagnetic release would activate to drive the operation mechanism to act to break the contact that connects the power, finally to realize the leak protection.
|Model||Electronic type / magnetic type|
|Residual Current characteristics||A, AC|
|Rated Current (A)||16A,20A,25A,32A,40A,63A;80,100,125A|
|Rated Voltage (V)||230/ 400V|
|Rated Residual operating current||30 ma , 100ma ,300ma ,500ma|
|Rated conditional resdual short circuit current||6KA|
|Electro-machanical endurance||over 4000 cycles|
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