I don't know about rated.In reality,You would be fine with a 6' rear blade,5' box blade,5' bush hog,6' landscape rake,6' rear mower,5' snowblower.Did I miss any popular implements?
Kubota L3560, Toro 52" and 60" ZTRs, Kubota RTV 900
I just bought a B2620 (the same tractor as 2920 except for 3 hp.) In talking with the dealer, more experienced users, and advice gathered from TBN, it appears the limiting factor with most implements is size and weight. I think you could handle a 5' box blade, a 6' back blade, a 6' or 7' rake, a 48"-54" rotary cutter, and a 60" finishing mower. I don't have any experience with tillers or blowers. Your tractor and mine have the power to run bigger implements, but may struggle with lifting and handling heavier implements.
Will
I have a 5 ' landpride rotary cutter, if I was purchasing again I would go with a 4'. My 2620 works great with everything else listed. Next item will be a box blade, keep watching for a deal for one of them.