In a commercial building, a 400A feeder is supplying a lighting circuit. Which type of overcurrent protection is required for this circuit, according to 2026 NEC 210.11(A)?

Texas Master exam practice question · Feeders

In a commercial building, a 400A feeder is supplying a lighting circuit. Which type of overcurrent protection is required for this circuit, according to 2026 NEC 210.11(A)?

AFused disconnect
Circuit breaker
CGround-fault circuit interrupter (GFCI)
DArc-fault circuit interrupter (AFCI)

Exam tip

Remember that circuit breakers are the standard overcurrent protection for feeders in commercial buildings.

Why B is correct

According to 2026 NEC 210.11(A), a circuit breaker is required for all branch circuits and feeders. Fused disconnects are not required for feeders in commercial buildings.

Practice 14 more Feeders questions

Timed mock exams, a wrong book and flashcards — one subscription covers every contractor exam line.

Start studying free

A 200A feeder is supplying a new residential building. Which type of overcurrent protection device is required at the main service panel, according to 2026 NEC 240.21(A)?
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 healthcare facility is to be served by a 200A, 480V, 3-phase feeder. What is the maximum length of the raceway allowed according to 318.30(B)(1)?
A high-rise apartment building is to be served by a 400A, 480V, 3-phase feeder. What is the minimum size of the grounding electrode conductor required according to 250.66(A)(1)?
A public school is to be served by a 400A, 480V, 3-phase feeder. What is the minimum number of overcurrent devices required for this feeder according to 240.4(A)?
In an industrial plant, a 600V, 3-phase feeder is to be installed in a raceway. What is the minimum size of the raceway required according to 318.30(A)?

In a commercial building, a 400A feeder is supplying a lighting circuit. Which type of overcurrent protection is required for this circuit, according to 2026 NEC 210.11(A)?

In a commercial building, a 400A feeder is supplying a lighting circuit. Which type of overcurrent protection is required for this circuit, according to 2026 NEC 210.11(A)?

More Feeders questions