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# If a home has 100A service and the main's fused at 100A each can the total of the circuit breakers inside the service panel exceed 100A?

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Yes. Five 20 amp breakers would be 100 amps. It doesn't work that way. The load placed on this box at any given time cannot exceed 100 amps. You can put as many breakers as it will hold.
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# What gauge wire is required for a 100A sub panel off of a 200A main service?

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# Answers for is-100a fema test?

Mutual aid agreements and assistance agreements provide:

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NEC 310.16 #3 Thhn Copper