Well, the thing is, if a range is a free standing type it is considered a portable appliance and it must be disconnectable to allow it to be moved. A cooktop or oven that is built in to a cabinet can be hard wired without a local disconnecting means as long as the circuit feeding it can be locked off. One exception to this in some jurisdictions is a dishwasher, which is a fixed appliance but may be allowed to be cord and plug connected.
