Long Life 6KA 2Pole 63A 30mA RCBO A type Leakage Current Circuit Breaker for leakage current and overload protection

STRO7-40 rrent circuit breaker is in conformity with the standards of IEC61008.It can cut off the fault circuit immediately on the occasion of shock hazard or earth leakage of trunkline.Thus it is suitable to avoid the shock hazard and fire caused by earth leakage.It can be used in circuits up to single phase 230V,three phase 400V,50 or 60Hz.

Description
Residual Current Circuit Breaker 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.

Specifications

FAQ

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.

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WENZHOU SANTUO ELECTRICAL Co., Ltd.(Before:YUEQING SHANTUO ELECTRICAL CO.,LTD.) is one of manufactories that specialize in manufacturing Circuit Breaker, AC CONTACTOR, Thermall Relay,Magnetic Starter(DOL),Solid State Relay,Distribution Case, Voltage Regulator  is located in Liushi, Wenzhou, China that called " the Capital of Low Voltage Electronic Products", enjoying convenient transportation access and a beautiful environment. The products have passed CE approvals and strictly comply with IEC standards. The company has advanced detection instruments and strong technical force with strong research and development capability, product constantly updated. The products export Europe, Asia, Southern Amercia, Middle East, Western Africa market.The products have passed CE certificate. And our Teams have more than 20years Experience. 

If you are interested in any of our products or would like to discuss a custom order, please feel free to contact us. We are looking forward to forming successful business relationships with new clients around the world in the near future.

On the base of guarrantee the quality, we will try our best to design new model with ourselves patents for the coming years.