I have a 240v line that I no longer need and which I intend to split into two 120v outlets. This line is outside and is equipped with a 60 Amp GFCI. The two 120v circuits will have 12 AWG Copper wiring and the 240v line will have a 20 Amp circuit breaker at the main panel. My question is, do I also need to replace the GFCI breaker to match the 20 Amp breaker at the main panel or is it alright to leave it at 60 Amp?