Wiring:The iWave-R provides a patented common voltage 24VAC to 240VAC input capacity. The black wire (marked ‘AC’ on label) is for 24VAC to 240VAC voltage enter. The white wire (marked ‘N’ over the label) is definitely the neutral leg for 24VAC or 120VAC; or one other incredibly hot leg for 208/240VAC.Accessibility denied Mistake code 1020