210.52(B)1: states that refrigeration equipment must be on the SABC.
210.52(B)1 ex. 2: states that a refrigerator can be supplied by a individual branch circuit 15A or greater.
Branch Circuit, Individual: A branch circuit that supplies only one utilization equipment
Utilization Equipment: Equipment that utilizes electric energy for electronic, electromechanical, chemical, heating, lighting, or similar purposes.
I would say you would either have to connect your refrigerator to the SABC or a dedicated circuit.