GFCI protection will be required for a branch-circuit disconnect rated at a minimum of how many amperes?

GFCI protection will be required for a branch-circuit disconnect rated at a minimum of how many amperes?

• A. 1000 A
• B. 100 A
• C. 10 A
• D. 10,000 A

Answer: (A)

GFCI protection is used to detect ground faults and quickly shut off power to prevent shock. For branch-circuit disconnects, the rule sets a minimum rating that triggers this protection: if the disconnect is rated at 1,000 amperes or more, GFCI protection is required. That 1,000 A threshold is the smallest rating at which the protection must be applied, and any device rated higher (like 10,000 A) also requires it, but 1,000 A is the minimum that triggers the requirement. The other options (10 A, 100 A) are below this threshold and do not meet the criterion.

GFCI protection is used to detect ground faults and quickly shut off power to prevent shock. For branch-circuit disconnects, the rule sets a minimum rating that triggers this protection: if the disconnect is rated at 1,000 amperes or more, GFCI protection is required. That 1,000 A threshold is the smallest rating at which the protection must be applied, and any device rated higher (like 10,000 A) also requires it, but 1,000 A is the minimum that triggers the requirement. The other options (10 A, 100 A) are below this threshold and do not meet the criterion.