Miniature Circuit Breakers

We manufacture a full range series of Miniature Circuit Breakers, including LB1-63, LB65-63, LB7-100, LB30-32 etc.

Choose one of the Miniature Circuit Breakers from Anssin.  

Low MOQ For trial Order

5 Series To Protect Your Circuit Safety

LB1-63 MCBs Series (3KA 4.5KA)

LB1-63 MCBs 3KA 4.5KA  can be used for protect circuits against short circuits and overcurrent faults.

LB65-63  MCBs Series (6KA)

LB65-63 MCBs 6KA can be used for protection of control circuit against short-circuit, overload current faults.

LB7-100 MCBs Series (10KA)

LB7-100 MCBs 10KA can be used for circuit control and isolation functions.

DPN MCB LB30-32 series

DPN MCB is used to protect an electrical circuit from over current. The over current in an electrical circuit may result from short circuit/overload or faulty design. In order to restart the flow of current the MCB is manually turned on.

Pneumatic socket is verifying and testing

Anssin always work hard want to design and manufacture more space-saving desktop power supplies. Also expanding our functional modules for desk management.

New Product Forecast

Our vision is to help clients to create more value by design and production, work together to grow up with economic solutions, such as Low MOQ, Free Sample and Customization

Our Miniature Circuit Breakers Production Tour

plastic injection workshop

Plastic Housing Manufacturing

Product Testing

miniature circuit breaker

Assemble Manufacturing

Customization Service

mold development


OEMs can help clients reach their goals by  experienced production and manufacture. Anssin focus on provide better quality alternative solution  and offer competitive price  by OEM service.


In order to let our clients build the competitive product system, we provide the purchase service to search new products and find alternative solution, help to improve our client‘s profitability and advantage.


The client doesn’t need to invest millions of dollars, or time, into R&D in order to develop a new product, only need to focus more time and money on marketing strategies. Anssin has ODM annual mould budget and plan.

Review From Client

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At our Miniature Circuit Breakers factory, we take pride in the quality, innovation, and safety features that define our products. There are several compelling reasons why choosing our MCBs is a smart decision, and we’re committed to showcasing these advantages to our customers.

Quality and Reliability
Our Miniature Circuit Breakers are synonymous with reliability and quality. Crafted using top-grade materials and subject to rigorous testing, our products offer consistent performance and durability. Our commitment to excellence ensures that our MCBs meet and exceed industry standards, assuring safety and reliability in every use case.

Safety Assurance
Safety is our top priority. Our Miniature Circuit Breakers are designed to provide the highest level of safety, protecting electrical circuits from overloads and short circuits. With certifications and compliance with international safety standards, our MCBs offer the peace of mind that comes with reliable circuit protection.

Innovation and Technological Advancements
Innovation is at the heart of our products. We incorporate cutting-edge features such as smart circuit protection, arc-fault detection, and energy-efficient designs. These advancements set our MCBs apart, offering our customers enhanced protection, efficiency, and the latest in technological advancements.

Diverse Range for Varied Needs
We understand that different applications have unique requirements. Therefore, we offer a diverse range of MCBs, catering to various current ratings, breaking capacities, and special features. This extensive range ensures that our products fit a wide array of applications across industries.

User-Friendly Installation
Our MCBs are designed for easy installation, saving time and effort for installers and electricians. Clear installation guidelines and support ensure that the products can be quickly and efficiently integrated into any electrical system.

Efficient Customer Support
We stand by our commitment to customer satisfaction. Our team provides efficient and responsive customer support, offering technical guidance, troubleshooting assistance, and after-sales service. We aim to ensure a seamless experience for our customers.

Competitive Pricing and Cost-Effectiveness
While delivering superior quality, we also offer competitive pricing, making our MCBs cost-effective solutions. Bulk purchase discounts and bundled offers further increase the value proposition, making our products the smart choice for both quality and affordability.

Sustainability and Energy Efficiency
Our MCBs not only provide reliable protection but also contribute to energy efficiency and sustainability. With features designed to conserve energy, we help our customers reduce their environmental impact while ensuring operational efficiency.

Branding and Reputation Building
Our brand identity is built on reliability, quality, and trustworthiness. Positive reviews, testimonials, and our strong reputation in the market reaffirm our commitment to delivering exceptional products and services.

Effective Marketing and Communication
We utilize various marketing channels to effectively communicate the benefits of our MCBs. Engaging content, visuals, and demonstrations showcase the unique features and advantages of our products, enabling customers to make informed decisions.

Partnerships and Collaborations
Collaborations with distributors, electricians, and industry influencers are essential. These partnerships expand our reach, increasing visibility and ensuring that our products reach a wider audience.

Customer Education and Training
We provide educational materials and training sessions for customers, installers, and electricians. These initiatives aim to raise awareness and knowledge about the advantages and proper use of our Miniature Circuit Breakers.

Continuous Improvement and Quality Control
Our commitment to continuous improvement is unwavering. We invest in evolving our manufacturing processes and quality control measures, constantly innovating to stay ahead of market trends and meet evolving consumer needs.

Feedback and Improvement Loop
Customer feedback is invaluable. We actively collect feedback to enhance our products, services, and overall customer experience, continuously striving to improve and meet customer expectations.

In short, finding the Miniature Circuit Breakers is not easy. But if you want to succeed quickly, you still have to stay vigilant. Find a partner who can focus on your needs. We specialize in sockets, so we can ensure your order is given priority.

Send us your inquiry for more information. We will help you expand your business. Become one of our successful large customers. They have developed a great relationship with us. Contact us today!

Miniature Circuit Breakers :The Complete FAQ Guide

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    Why do many homes have miniature circuit breakers?

    Many homes have miniature circuit breakers (MCBs) because they protect against electrical overloads and short circuits. They are designed to automatically interrupt electrical flow when excessive current is detected, preventing damage to wires and appliances, and reducing the risk of electrical fires.

    What is the life expectancy of a miniature circuit breaker?

    The life expectancy of a miniature circuit breaker may vary depending on factors such as quality, usage condition and maintenance. Typically, a well-maintained miniature circuit breaker will last 30 to 40 years or more.

    What is the smallest circuit breaker?

    The smallest circuit breaker available is often called a miniature circuit breaker (MCB). They come in a variety of sizes and current ratings, but the term “miniature” means that they are compact in size compared to other types of circuit breakers.

    How many mini breakers can you put in a panel?

    The number of miniature circuit breakers that can be installed in a panel depends on the capacity of the panel and individual circuit requirements. Be sure to refer to the manufacturer’s guide and local electrical codes to determine the proper number of miniature circuit breakers for a particular panel.

    What is the difference between a standard and miniature circuit breaker?

    The difference between standard circuit breakers and miniature circuit breakers is their physical size and current rating. Standard circuit breakers are usually oversized and designed for higher current applications, such as industrial environments or larger commercial buildings. Miniature circuit breakers, as the name suggests, are smaller and are often used in residential and light commercial applications.

    How do I choose a miniature circuit breaker?

    The most common type of circuit breaker used in residential and light commercial applications is the miniature circuit breaker (MCB). It is widely used for its compact size, availability of various rated currents and reliable performance.

    What is the advantage of miniature circuit breaker?

    Advantages of miniature circuit breakers include compact size, ease of installation, and reliable overload and short-circuit protection. They can be quickly reset after a trip and do not need to be replaced like fuses.

    How do I choose a miniature circuit breaker?

    To select a miniature circuit breaker, you need to consider factors such as the maximum current rating required for the circuit, the type of protection required (from overload or short circuit), and compatibility with the electrical panel

    What is the disadvantage of miniature circuit breaker?

    A potential disadvantage of miniature circuit breakers is that they are sensitive to ambient temperature. Some MCBs may experience degraded performance or trip at higher temperatures, which may be a limitation in some environments.

    Do MCB need replacing?

    Miniature circuit breakers may need to be replaced if they fail, show signs of damage, or if changes to the electrical system require different current ratings or protection requirements. Regular inspection and maintenance can help determine if replacement is required.

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