Click to expand Tap to zoom APS YC600/QS1 3/4-wire Bus Cable Unlock Tool Save Liquid error (snippets/product-badge line 32): Computation results in '-Infinity'% $2.00 | / 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart The AC connector unlock tool is used to disconnect the microinverter from the AC bus cable.