A government building is to be served by a 300A, 120/240V single-phase feeder. The maximum number of 20A, 120/240V branch circuits that can be supported is:

Texas Master exam practice question · Feeders

A government building is to be served by a 300A, 120/240V single-phase feeder. The maximum number of 20A, 120/240V branch circuits that can be supported is:

Exam tip

Always refer to 210.11(A) for the maximum number of branch circuits a feeder can support.

Why B is correct

According to 210.11(A), the maximum number of 20A, 120/240V branch circuits that can be supported by a 300A feeder is 15. The other options are incorrect as they exceed the allowable number of circuits.

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A government building is to be served by a 300A, 120/240V single-phase feeder. The maximum number of 20A, 120/240V branch circuits that can be supported is:

A government building is to be served by a 300A, 120/240V single-phase feeder. The maximum number of 20A, 120/240V branch circuits that can be supported is:

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