DC circuit breaker is one kind of power equipment. It has the advantages of small size, light weight, easy operation, etc. It is widely used in power distribution lines. Selecting the right DC circuit breaker is crucial for ensuring the safety and efficiency of electrical systems. DC (Direct Current) circuits require specialized circuit breakers to protect against overloads and faults. In this article, we will explore key considerations to guide you in choosing the most suitable DC circuit breaker for your application.