According to ANSI class or equivalent standard such as IEC, BS, AS etc.

ANSI Class 52 Catalogue Number: 52-1, 52-1, 52-3, 52-4, 52-5, 52-6, 52-8, 52-9, 52-10

ANSI Class 53 Catalogue Number: 53-1, 53-2, 53-2L, 53-3, 53-4, 53-5

ANSI Class 54 Catalogue Number: 54-1, 54-2, 54-3, 54-4

ANSI Class 55 Catalogue Number: 55-1, 55-2, 55-3, 55-4, 55-5

ANSI Class 56 Catalogue Number: 56-1, 56-2, 56-3, 56-4, 56-5

ANSI Class 57 Catalogue Number: 57-1S(L), 57-2S(L), 57-3S(L)