3 Phase Circuit Breaker Sizes Table

October 14, 2018

The electrical power system in our homes and businesses has been a staple of modern life since the dawn of the industrial revolution. It is a complex and intricate system that requires a lot of knowledge and expertise to be able to properly maintain and repair it. One of the most important components of any electrical power system is the circuit breaker. It is responsible for protecting the system from overloaded circuits, short circuits, and other common problems.

When it comes to selecting the right circuit breaker for a particular application, there are many factors to consider. The size and type of circuit breaker must be chosen carefully to ensure that it is capable of providing the necessary protection. One of the most important considerations is the type of current required – 3 phase or single phase. Depending on the application, different 3 phase circuit breaker sizes may be required. In this article, we will provide a comprehensive overview of 3 phase circuit breaker sizes and their applications.

A 3 phase circuit breaker is designed to handle large amounts of current without tripping. This makes them ideal for applications where high currents are required, such as industrial and commercial settings. They are available in various sizes, ranging from small to very large. The most common types of 3 phase circuit breakers are the molded case, air-break, and vacuum-break circuit breakers. Each type has its own unique characteristics, so it is important to choose the correct size and type for the application.

For the purpose of this article, we will focus on the most commonly used 3 phase circuit breaker sizes. The table below provides an overview of the circuit breaker sizes and their corresponding current ratings. The values represent the maximum current the breaker can handle before it trips. It is important to note that the actual current rating may vary depending on the manufacturer.

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