Which statement best describes the requirement for overcurrent protection on branch circuits?

Which statement best describes the requirement for overcurrent protection on branch circuits?

• A. Overcurrent protection for branch circuits is required
• B. Overcurrent protection is never required for branch circuits
• C. Overcurrent protection is only required for outdoor circuits
• D. Overcurrent protection is optional for branch circuits

Answer: (A)

Overcurrent protection is required for branch circuits to prevent overheating of conductors and equipment during overloads or faults. This protection, provided by fuses or circuit breakers, is sized to the conductors’ ampacity and is placed at the start of the branch or at an upstream point that covers it. This requirement applies to all branch circuits, whether indoors or outdoors, and it is not optional. So, the best statement is that overcurrent protection for branch circuits is required. The other choices would imply it isn’t required, is limited to outdoor circuits, or is optional, which conflicts with safety and code requirements.

Overcurrent protection is required for branch circuits to prevent overheating of conductors and equipment during overloads or faults. This protection, provided by fuses or circuit breakers, is sized to the conductors’ ampacity and is placed at the start of the branch or at an upstream point that covers it. This requirement applies to all branch circuits, whether indoors or outdoors, and it is not optional. So, the best statement is that overcurrent protection for branch circuits is required. The other choices would imply it isn’t required, is limited to outdoor circuits, or is optional, which conflicts with safety and code requirements.