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Can a box be added to contain the splices,or If we work on it does the circuit have to be replaced w/4wire? What if a new cooktop is being installed at existing location?
In this area, removing the flying splice would be removing the hazard. 4x4, romex clamp, flex connector and flex strap would take care of the hazard. The neutral/ground bond in the appliance can be left until a new unit is installed, or the existing is relocated.

Is this cooktop actually 120/240 volt? I've seen a lot of 240 volt units also.

Al


Al Hildenbrand