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'% $2.70 | / 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart This item is a recurring or deferred purchase. By continuing, I agree to the cancellation policy and authorize you to charge my payment method at the prices, frequency and dates listed on this page until my order is fulfilled or I cancel, if permitted. The AC connector unlock tool is used to disconnect the microinverter from the AC bus cable.