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Complete Guide to Stacked Dual Switch Wiring in 2026

"When updating residential or commercial lighting controls, mastering stacked dual switch wiring is essential for maximizing wall box capacity without invasive drywall remodeling. Whether you are replacing a legacy single-pole switch with two independent controls or upgrading to modern multi-gang configurations, understanding how to safely wire a stacked dual switch unit ensures code compliance and long-term electrical reliability. Understanding Dual Stacked Switches and Electrical Architecture A stacked dual switch—often referred to as a tandem switch—combines two independent switches within a single standard-sized switch yoke. This design al..."

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