According to NEC 230.90(A), the service overcurrent device shall be rated or set at not more than the allowable ampacity of the service conductors, except for what specific case?
When the service conductors are protected by a main breaker sized at 125% of the calculated load.
When the service conductors are sized for a dwelling unit and the overcurrent device is the next standard size above the conductor ampacity.
When the service conductors are larger than 600 kcmil and protected by fuses.
When the service overcurrent device is part of a listed transfer switch.
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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