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An arc welder shall have overcorrect protection rated or set at not more than ____________ percent of the rated primary current of the welder.

An arc welder shall have overcorrect protection rated or set at not more than ____________ percent of the rated primary current of the welder.
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An arc welder shall have overcorrect protection rated or set at not more than ____________ percent of the rated primary current of the welder.

User Babul
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Answer: 200%

Explanation: 630.12(A) of the 2023 NEC states: Each welder shall have overcurrent protection rated or set at not more than 200% of the maximum value of the rated supply current. If the maximum is not given, the overcurrent protection shall be rated or set at not more than 200% of the rated primary current of the welder.

Perhaps this changed from previous code due to nuisance tripping?

User Saugat Mukherjee
by
8.0k points
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