• Code Q&A

    Q. When does the NEC require a main breaker in a load center? A. Each lighting and appliance branch-circuit panelboard must be protected on the supply side . The overcurrent protection device can be located within the panelboard, or the panelboard’s ...
    Oct. 8, 2004
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    Q. When does the NEC require a main breaker in a load center?

    A. Each lighting and appliance branch-circuit panelboard must be protected on the supply side [408.16(A)]. The overcurrent protection device can be located within the panelboard, or the panelboard’s feeder overcurrent protection device could be used if its rating doesn't exceed the ampere rating of the panelboard [408.16(A) Ex.1].

    Got a Code question for Mike? Send it to him at [email protected].

    About the Author

    Mike Holt

    Mike Holt is the owner of Mike Holt Enterprises (www.MikeHolt.com), one of the largest electrical publishers in the United States. He earned a master's degree in the Business Administration Program (MBA) from the University of Miami. He earned his reputation as a National Electrical Code (NEC) expert by working his way up through the electrical trade. Formally a construction editor for two different trade publications, Mike started his career as an apprentice electrician and eventually became a master electrician, an electrical inspector, a contractor, and an educator. Mike has taught more than 1,000 classes on 30 different electrical-related subjects — ranging from alarm installations to exam preparation and voltage drop calculations. He continues to produce seminars, videos, books, and online training for the trade as well as contribute monthly Code content to EC&M magazine.

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