What are the common sizes for secondary cable assemblies?

The common sizes for secondary cable assemblies are typically aligned with standard amperage ratings that cater to various electrical applications. In this context, the size of 200A is commonly used for residential and commercial services, providing ample capacity for typical electrical loads. Similarly, 60A is a common size that often serves smaller installations or specific applications, such as subpanels or dedicated circuits.

These amperage ratings are established standards within the electrical industry, ensuring that the cable assemblies can handle the expected load without risk of overheating or failure. They are widely recognized and understood by electricians and engineers, making them practical and efficient choices for secondary electrical systems.

The other options present combinations of amperage ratings that are less commonly used or have no established typical applications in standard practices, which is why they do not align as closely with industry standards for secondary cable assemblies.