A feeder is tapped and a circuit breaker in an enclosure protects the tap. The transformer is 4160 to 2400 V, three-phase, 225 kVA with 4% impedance, located in a nonsupervised location, and it supplies a three-phase main breaker panelboard. Under NEC 450.3, the maximum size of the circuit breaker in the CB enclosure is ___ amps.

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $24.99Unlock all

Prepare for the Independent Electrical Contractors (IEC) Year 4 Exam. Access flashcards, multiple choice questions, and detailed explanations. Enhance your readiness and achieve your certification!

Multiple Choice

A feeder is tapped and a circuit breaker in an enclosure protects the tap. The transformer is 4160 to 2400 V, three-phase, 225 kVA with 4% impedance, located in a nonsupervised location, and it supplies a three-phase main breaker panelboard. Under NEC 450.3, the maximum size of the circuit breaker in the CB enclosure is ___ amps.

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy