An A320 diverted to a nearby airport when attempts to overcome heat and a burning odor from an aft coffee maker proved unsuccessful.

Narrative

During our cruise portion of the flight the aft Flight Attendant called to tell us she smelled a burning plastic smell and the aft electrical panel in the galley next to the coffee makers was hot. I told her to turn off all electrical equipment in the galley and let me know if the smell went away. She called back up and informed me that the coffee maker Circuit Breaker (CB) had popped and the smell was going away.I called Dispatch for a phone patch to Maintenance Control to let them know what was going on. We discussed the possibility of a divert if the situation changed at all for the worse. The Flight Attendant monitored the area for about 5 minutes and then called back and said that the smell was coming back and the panel was again getting very hot. Shortly after that she told me that a T/R CB had just popped also. At that time we felt that it would be prudent to get the aircraft on the ground to get it inspected for possible damage to the electrical system. We told Dispatch and ATC we were going to divert to ZZZ as a precaution. The galley never had any smoke and we never had any unusual ECAMs in the cockpit. We landed and taxied to the gate.