The maximum size ITCB permitted to be installed in the panel is what amperage?

The maximum size ITCB (Integrated Time-Current Breaker) that can be installed in a panel typically adheres to certain code or standards related to panelboard limitations. According to various national electrical codes and regulations, 80 amps is a common maximum capacity for ITCBs in certain types of panel configurations designed for specific applications.

When evaluating which amperage is permissible, it's important to consider the requirements for overload protection and the current-carrying capacities of the conductors in your specific installation. The 80-amp rating would support a greater load without exceeding the panel’s capabilities and would ensure compliance with safety standards. This makes it a suitable and safe choice for installations requiring enhanced current handling, ensuring system reliability while also aligning with code requirements.

Other amperage choices, while they might be suitable for certain limited applications, do not reach the same level of capacity that 80 amps does. Thus, 80 amps stands out as the maximum allowable size under many industry guidelines and practices.