I have 12/3 running from the panel to the kitchen. One hot to disposal, one to dishwasher; split neutral at one kitchen junction to allow two short runs of 12/2 to each appliance. I need to upgrade from standard to a cafci breaker setup. This is a GE panel. So two problems: 1) GE does not make a 2-pole dfci (what they call cafci / gfci), and 2) there's only one neutral from the panel.
The best solution I've seen is to use 2 of the 1-pole dfci's with handle tie. Connect both pigtails to neutral bar. Connect load neutral and one hot to one of the dfci. Then only the second hot to the other dfci (no load neutral).
Will this work and protect both circuits? Is this code compliant? Any better solutions?