Geoffrey Lyons said:
So it has to be on a dedicated circuit? Or is that the meaning of a small appliance circuit
A listed range hood that is cord and plug connected (A microwave this is designed to be installed above a range with a hood fan built in is listed as a range hood) must meet the requirments of 422.16(B)(4) as Ryan pointed out.
422.16(B)(4)(5) requires that the receptacle supplying the range hood be an individual branch circuit.
Also 210.52(B)(2) as pointed out by Bryan does not permit other outlets to be supplied by the 2 small appliance branch circuits.
So basically you can't put the above the range microwave on the small appliance branch circuits because it is not one of the receptacles listed in 210.52(B)(1) and you must install a dedicated circuit to the microwave because it is most likely listed as a rangehood and you would have to comply with 422.16(B)(4).
Hope I haven't confused you too much.
Chris