Technical Service Center / Willard Wu
willard@meanwell.com

In modern power systems, electrical protection devices play an indispensable role in effectively preventing circuits from being damaged by overcurrent, thereby ensuring the safety and stability of system operation. Among these, the Miniature Circuit Breaker (MCB) is one of the most widely used protective components. Its main specifications include rated current, rated voltage, tripping characteristics, and breaking capacity. When an abnormal condition such as overload or short circuit occurs, the MCB can quickly cut off the power supply, preventing equipment damage and fire hazards, and ensuring the safety of personnel and property. With its compact size, quick response, and easy maintenance, the MCB is widely used in residential, commercial, and industrial power distribution systems.

MEAN WELL promotes a one-stop shopping concept, and the newly launched MCB series from the C1 Component Division is designed to provide safe and reliable solutions for various electrical circuit applications. Key product features include compliance with international certification standards, a wide range of applications, high performance and stability, as well as comprehensive protection functions. We have prepared a quick selection guide to assist you in selecting the right MCB.

For further guidance on selecting the right MCB, please refer to our previously published technical article: Introduction and Selection: ICL-16 Series and Circuit Breakers. The MEAN WELL ICL series can be used in combination to suppress inrush current, thereby reducing the number of circuit breakers required at the system front end and achieving the best cost-performance ratio in overall system design.

Below is an application example photo showing the use of MCB-6K3P-D63 to safeguard the entire system.

For relevant product and application inquiries, please contact MEAN WELL distributors or technical staff directly. Also, stay tuned for online courses related to products and solutions on the MEAN WELL Virtual Expo.