I am redoing my kitchen. All of the duplex outlets are on two 20 amp
12 awg wire breakers. However...all of the old outlets are rated for 15 amp circuits ? I have come across this in kitchens many times before.Can you use duplexes rated for 15 amps in the kitchen with 20 amp breakers...fed by 12 awg wires ? Is this a common practice and OK via NEC...or should you use the 20 amp duplexes with the horizontal little plug fitting on the receptacles ?
Thanks, TR