Wiring:The iWave-R has a patented universal voltage 24VAC to 240VAC input capacity. The black wire (marked ‘AC’ on label) is for 24VAC to 240VAC voltage input. The white wire (marked ‘N’ over the label) is the neutral leg for 24VAC or 120VAC; or the other very hot leg for 208/240VAC.Using this type of functionality, It can save you each of … Read More