DC L7 Miniature Circuit Breaker MCB

What is the DC L7 Miniature Circuit Breaker (MCB)?

The DC L7 Miniature Circuit Breaker MCB is a high-performance electrical device specifically designed to provide overload and short-circuit protection for both DC and AC circuits. It is widely utilized in fields such as photovoltaic systems, communication power supplies, rail transit, and industrial control. Its compact design and high breaking capacity ensure stable operation even in harsh environments; furthermore, it complies with international safety standards and exhibits excellent corrosion resistance and long-term reliability. Having obtained numerous certifications, this product meets the specific grid requirements of various countries, making it an indispensable and critical component in modern electrical systems.

Stamped Component Materials:

Iron, Brass, and Pure Copper.

Iron components within the circuit breaker serve to conduct electricity while providing high strength and hardness; they also represent the most cost-effective material option.

Brass components offer superior electrical conductivity compared to iron, as well as better elasticity, making them a well-balanced choice of material.

Pure copper possesses the highest copper content—approaching 100%—and is typically reserved for use in high-current DC L7 Miniature Circuit Breaker MCB. While every product typically incorporates a combination of iron, brass, and pure copper components, we also offer exclusive customization options, allowing for the upgrade of brass components to pure copper.

Sample Delivery Lead Time:

For orders totaling up to 1 million units, our production completion time is approximately 30 to 45 days. Our production efficiency is exceptionally high within China, largely because we maintain a substantial inventory of pre-manufactured components.

Long-Term Client Case Studies:

XENHO maintains cooperative partnerships across more than 30 countries. Our operations are primarily concentrated in Asia, establishing us as an electrical equipment company deeply specialized in and dedicated to the Asian market.

Guarantee of Batch Consistency:

We employ fully automated production lines and precision mold processing technologies to ensure that every batch of DC L7 Miniature Circuit Breaker MCB exhibits a high degree of consistency in terms of electrical performance, mechanical strength, and dimensional accuracy.

Prior to leaving the factory, every circuit breaker undergoes rigorous testing—including withstand voltage tests, tripping curve verification, and contact resistance measurements—with all data traceable back to the specific workstation and time stamp at which the test was performed. Additionally, we implement strict batch management for raw materials; critical metal components undergo compositional spot-checks every two hours to prevent material fluctuations from compromising product stability.

Product Specifications

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Contact us

For any inquiries about our products, please feel free to contact us through the following methods:

WhatsApp / WeChat: 86-13123865875 86-15858812131

Email: 799199031@qq.com