• Home
  • >
  • 220v Main Breaker Switch

220v Main Breaker Switch

NBT1-63 series small air switch has skillfully set the threshold of closing force of the operating handle in the products with higher rated current level (50a and above). Only when

220v Main Breaker Switch

●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.

Read More Contact Us

NBT1-63 series small air switch has skillfully set the threshold of closing force of the operating handle in the products with higher rated current level (50a and above). Only when the operating force reaches a certain value, In order to make the contact close and make the contact close at a certain high speed, the influence of human factors on the contact closing speed is relatively eliminated, the electric wear loss of the contact is reduced, and the service life and reliability of the circuit breaker are improved. The comprehensive effect of NBT1-63 series small air switch is characterized by good current limiting characteristic, short arcing time, long service life and reliable performance.

 

 

Product Specification

 

Product Model

Rated Current(A)

Pole

Rated

Voltage(V)

Breaking Capacity

Tripping curve

NBT1-63

1,3,6,10,16,20,25,32,40,50,63

1,2

230/240

6kA

B,C,D

1,2

230/400,240/415

2,3,4

400/415

 

 

Product Features

 

1. Protection grade: IP20B (terminal), IP40 (installed in distribution box)

2. Ambient temperature: – 35 ° C to + 70 ° C

3. Storage environment temperature: – 40 ° C ~ + 85 ° C

4. Double lock clamp structure

 

 

An innovative enterprise integrating scientific research, production and sales is committed to the R & D, promotion and popularization of DC side electrical protection elements in photovoltaic power generation system.

People oriented, return enterprises and benefit society. YRO is willing to make progress and grow with you.

Minimum order quantity starts from 1pcs.

Lead time of most parts is less than 3 days.

 

 

The company scientific design, professional manufacturing, good cost-effective, the company products have been favored by the majority of domestic users, sales network throughout the country. The company insists on “people-oriented” and pays attention to personnel training. With the experience of the world top 500 and domestic advanced large enterprises, the human resource management mode suitable for its own characteristics is established, and learning organization is built to create opportunities, platforms and development space for excellent talents. At present, the company has a vigorous, pioneering and enterprising high-quality talent team.

 

 

FAQ

 

Q1: Can water in a breaker box cause a fire?

A1: The increased resistance in the circuit that corroded terminals and connections can cause produces heat, which may eventually ignite a fire. Water getting inside the panel box can also cause circuit breakers to malfunction. Although the damage may not be visible, opening the panel box yourself could be dangerous.

 

Q2: How do you fix an overloaded breaker?

A2: Solutions to Overloads. The immediate solution to an overload is simple: Shift some plug-in devices from the overloaded circuit to another general-purpose circuit. Then flip the circuit breaker back on or replace the fuse and turn stuff back on.

 

Q3: How do you split the load on a breaker?

A3: If you split a single circuit breaker into two and run them in parallel with each other then the breaker pair *SHOULD* allow twice as much current into that portion of the circuit without tripping.

 

Q4: Can you overload a breaker panel?

A4: Make sure you do not overload your service panel. A panel’s total amperage is printed near or on the main circuit breaker, which controls all the circuits in the panel. For example a 100-amp service panel may have circuit breakers that add up to more than 200 amps. This is normal.

 

Q5: What happens when a breaker is overloaded?

A5: Exceeding the rated load for the circuit wiring causes the circuit breaker to trip, shutting off the power to the entire circuit. If there were no breaker in the circuit, an overload would cause the circuit wiring to overheat, which could melt the wire insulation and lead to a fire.

 

Table Of Contents

Related Products

Frequently Asked Question

Welcome to our Frequently Asked Questions (FAQ) section.

Here, you’ll find answers to common inquiries about our products, services, and policies. We’ve compiled this resource to save you time and provide clarity on the topics most frequently asked by our customers.

If you don’t find the information you’re looking for, feel free to reach out to us directly. We’re always here to help!

What are the benefits of this product?

Our product is designed with a focus on quality and performance, using advanced technology and high-standard manufacturing processes to ensure the best user experience. Whether it’s durability, functionality, or aesthetics, we strive for perfection in every aspect.

How do I choose the right product for me?

To select the right product, consider your specific needs and usage scenarios. If you’re unsure which product is best for you, feel free to reach out to our customer service team. They will be happy to provide personalized advice and recommendations.

How do I maintain and clean my product?

To keep your product in optimal condition, please follow our cleaning and maintenance guidelines. Each product may have different care instructions, so refer to the product manual or contact our customer support for detailed care instructions.

What should I do if there is an issue with the product?

If you experience any issues with the product, please contact our customer support team via our hotline or online support. Our dedicated team will assist you promptly and ensure your concerns are addressed effectively.

Tell Us Your Requirements Questions Needs Ideas Plans

FAQ

B2B Inquiries
What is the main business of YRO Company?
What is the main business of YRO Company?

YRO is mainly engaged in the research and development, production and sales of low voltage components and photovoltaic related products.

Do YRO's products comply with international quality standards such as CE and UL certifications?
Do YRO's products comply with international quality standards such as CE and UL certifications?

YRO’s products strictly adhere to international quality standards. Low voltage components like automatic transfer switches for dual power supplies and circuit breakers have passed CE, UL and other certifications. These certifications indicate that our products have reached the internationally recognized level in terms of electrical safety and performance stability. In the production process, we adopt an advanced quality management system, and every link from raw material procurement to finished product delivery is strictly inspected to ensure reliable product quality.

How about the product prices and cost performance ratio?
How about the product prices and cost performance ratio?

We offer competitive prices. In terms of cost performance ratio, YRO’s products are based on high quality materials and advanced technologies. While ensuring long term stable operation, they can save customers a lot of later maintenance costs and potential losses caused by equipment failures. Compared with similar products of other brands, our products have price advantages under the same quality, or provide more functions and better performance within the same price range.

What is the after sales service system like and what is the response time?
What is the after sales service system like and what is the response time?

YRO has a complete after sales service system. In case of product failures, we will respond within 24 hours after receiving the notice.

Can products be customized according to requirements?
Can products be customized according to requirements?

YRO has a powerful product customization ability. We can customize the production of low voltage components and photovoltaic products according to customers’ special requirements, such as specific voltage and current specifications, as well as personalized functional requirements.

What technical support and services does YRO provide?
What technical support and services does YRO provide?

YRO provides customers with comprehensive technical support, including product selection guidance, recommending the most suitable low voltage components or photovoltaic products according to customers’ electrical equipment and usage scenarios; providing installation and commissioning technical support to ensure the correct installation and operation of products; and also providing technical consultation during the use process to answer customers’ questions about product performance, maintenance and other aspects.

How about the inventory situation and can timely delivery be guaranteed?
How about the inventory situation and can timely delivery be guaranteed?

YRO maintains a reasonable inventory level. For commonly used specifications of low voltage components and photovoltaic products, a certain quantity of inventory is kept to ensure that customer orders can be met in a timely manner. Meanwhile, we have established close cooperative relationships with suppliers and can quickly obtain raw materials for production to replenish inventory, so as to ensure the stability of supply even when the market demand fluctuates greatly.

How is the company's reputation and qualifications?
How is the company's reputation and qualifications?

YRO is an enterprise with a good reputation. It has been operating in the industry for many years without any bad records. We have complete production qualifications, including relevant production licenses and quality system certifications. Meanwhile, we actively participate in the formulation of industry standards and activities of industry associations.

What are the main types of YRO's low voltage components?
What are the main types of YRO's low voltage components?

YRO’s low voltage components include but are not limited to circuit breakers, isolation switches, dual power transfer switches, surge protection devices, voltage protectors and fuses.

What are the functions of YRO's photovoltaic combiner boxes?
What are the functions of YRO's photovoltaic combiner boxes?

YRO’s combiner boxes gather the outputs of multiple photovoltaic modules together, provide over current protection through fuses or circuit breakers, and have built in lightning protection modules to effectively resist the impact of lightning strikes or surge voltages. In addition, the combiner boxes optimize the wiring structure of the system, reduce the number of cables, and lower construction and maintenance costs.

In which scenarios are YRO's circuit breakers applicable?
In which scenarios are YRO's circuit breakers applicable?

They are applicable to the protection and control of low voltage distribution systems, industrial control systems and photovoltaic grid connected systems.

Are YRO's products waterproof and dustproof?
Are YRO's products waterproof and dustproof?

The protection level of YRO’s combiner boxes and some products reaches IP65 and above, which can be used in outdoor environments.

How to download YRO's product technical manuals?
How to download YRO's product technical manuals?

You can visit the download page on YRO’s official website or directly send an email to obtain the files.

Which countries and regions does YRO's market cover?
Which countries and regions does YRO's market cover?

The products are sold to Europe, North America, Asia, the Middle East and Africa and other regions.

Tell Us Your Requirements Questions Needs Ideas Plans