Attributes . ANSI/IEEE: Category A, NFPA: NFPA 99 2012 ed, UL 1363A and CSA C22.2: No. 21, UL 1449 3rd Ed and CSA C22.2: No. 8, UL 60601-1 and CSA C22.2: No.60601-1, UL 60950-1 and CSA C22.2: No. 60950-1 . Names