A 480V primary to 208Y/120V secondary transformer, rated at 30 kVA, is installed in a commercial building. The primary overcurrent protection device is sized at 125% of the transformer's rated primary current. What is the maximum rating of the secondary overcurrent protection device permitted by NEC 2026, assuming the primary protection is set at 125% and the secondary protection is the sole protection for the secondary circuit?

The correct answer is located in the National Electrical Code Section XXX.XX(Y)(Z). Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.

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