Correct spelling for the English word "protectional" is [pɹətˈɛkʃənə͡l], [pɹətˈɛkʃənəl], [p_ɹ_ə_t_ˈɛ_k_ʃ_ə_n_əl] (IPA phonetic alphabet).
Pert. to protection.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.