I need a new AFCI circuit breaker for a new refrigerator-only circuit we're running. Square D Homeline. Don't want any GFCI outlet or breaker. I bought two breakers at home depot, but I don't know which one I need.
No labeled AFCI breakers at home depot, only CAFI. However, the back of both described them as AFCI. Are CAFI and AFCI basically the same thing or is there any meaningful difference?
One is titled "Plug-on Neutral CAFI" without a pigtail. The other is titled "Combination Arc Fault Circuit Interrupter" with a pigtail. Package features on back label use different wordage, but actually say the same thing. The breakers themselves have different label designs. Front of packages are similar design and both have labels that say "Arc Fault Protection". They cost the same $42.94 and are same size. Which one do I want and why?
EDIT: Forgot to mention both claim to cover parallel and series faults.