Neutral line wiring in household electrical distribution box
Your breaker box wiring includes three main wire types: black hot wires carry electricity to outlets, white neutral wires return unused power, and green ground wires prevent electrocution. The neutral or white wire is usually connected to the breaker box's neutral bus bar. Identifying the neutral wire in an electrical box is necessary when installing modern devices like smart switches or dimmers, which require a continuous, low-voltage power source.
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