Ac Circuit Breaker

4 Pole Mcb For Ac
4 Pole Mcb For Ac
4 Pole Mcb For Ac
4 Pole Mcb For Ac
4 Pole Mcb For Ac

4 Pole Mcb For Ac

●Protect circuits from overcurrent.

●Overload protection and short-circuit protection.

●Widely used in solar PV photovoltaic systems.

●Structure, small size and convenient use.

●Passed KEMA, CE, TUV certification.

Product Description

NBT1-63 series small air switch adopts a large arc extinguishing chamber, and the arc motion track is connected with a large arc iron arc striking piece, which reduces the resistance of arc movement and prevents the arc from stopping in the middle of the way. There are more iron grid pieces (13 pieces), and the arc is cut, cooled, extinguished, and the multi-layer mesh iron grid is used at the arc nozzle to further cool and extinguish the arc, basically ensuring zero arc flashover and effectively preventing the occurrence of short-circuit of arc light between the poles; both sides of the arc chamber are provided with multi-layer mesh iron grid With the protection of special organic materials, a large amount of insulation vapor is produced under the high temperature of the arc, which makes the arc resistance rise and the voltage increase, which provides a strong guarantee for the rapid extinction of the arc. The insulation materials on both sides also effectively prevent the arc from burning the shell, ensuring the high insulation performance of the product.



Product Specification


Product Model

Rated Current(A)




Breaking Capacity

Tripping curve













Product Features


1. The working environment temperature is - 35 ℃ ~ + 70 ℃. The products are widely used

2. Bistable mounting clasp can be installed and removed without tools

3. Brand new mechanism design, comprehensive use, improve the service life of products, 20000 times of life to provide customers with more cost-effective products

4. The breaking capacity of 63A product is increased to 6ka, and the product performance is better



Any small problems happening in our FUSE will be solved at the most prompt time. We always offer relative technical support/consultant. Quick response ,all your inquiry will be replied within 24 hours.

We have our own factory, engineer team and a set of equipment for the product test, Beside, we can control the production(also mean we can control the lead-time)quality of the product very well.

Full automatic melt punching machine: CNC row spacing, semi-finished copper, silver strip can be punched into melt according to the required size, and cut into the required length of silver sheet.

Spot welding: spot welding or spot welding can improve the efficiency of continuous welding without current adjustment.



The company attaches great importance to the cultivation of "YRO" brand, actively promotes total quality management, and obtains ISO9001:2008 quality management system certification, and its products have passed the national compulsory CCC certification and CE certification. Since its establishment, the company has implemented the scientific management of specialty plus quality and people-oriented. It has set up technology development center and quality control center with excellent domestic technical personnel and management elites, and has set up branches or agents all over the country, forming a one-stop business model integrating design and development, production, sales and service, which has greatly promoted the rapid development of the enterprise With the development of the company, the company has been fully affirmed and praised by all walks of life.





Q1: How many outlets can be on a 30 amp breaker?

A1: There is no limit to how many receptacles can be put on a circuit in a residence. In a commercial setting there is a limit to how many receptacles can be on a circuit but 120 volt 15/20 amp receptacles still cannot be on a 30 amp breaker. Receptacles must be 30 amp rated such as is used for an RV.


Q2 : How many circuit breakers does a house have?

A2: Most homes ideally have 100 or 200-amp breaker boxes depending on the amount of electricity that the panel needs to handle and the number of circuits that are added to the main circuit breaker panel.


Q3: Could you do OEM for us?

A3: Sure, we accept OEM and ODM order, please supply with the letter of Authorization for the brand.


Q4: Why did the power go out in only one room?

A4: The most likely cause is a tripped breaker. This can happen when the electrical circuit is overloaded, or a defective appliance or damaged cord short-circuits the system. First, you need to unplug all the appliances in the room, since one of them likely caused the safety device to blow.


Q5: Do you have to reset breaker after power outage?

A5: If the trouble is a general power outage, all you can do is call the power company. ... Then, if you have a circuit breaker panel, flip all the breakers to the OFF position. Once the breakers are off, reset the main breaker to the ON position. One by one, trip the branch circuit breakers back on.



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