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Are double tapped breakers illegal?
Thursday, March 12, 2020
Double tapped breakers are not allowed for most circuit breakers. The exception is some lower-amperage rated breakers made by Square D and Cutler-Hammer (now Eaton). A double tap is two wires secured to a breaker that is only rated to receive one wire connection, and is a common defect called out at a home inspection.
There is no specific mention of double taps in the National Electrical Code (NEC), but it is not allowed because most breakers are only rated by their manufacturer to be “single pole,” which means one wire connection, and the NEC states at 110.3(B) that “listed or labeled equipment shall be installed and used in accordance with any instructions included in the listing or labeling." See our blog post What is a double tap at a circuit breaker? for more details and how to repair it.
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