Thermal Unit, Trip Class 20, Overload Protection Type Melting Alloy, Full Load Current 3.51 to 3.73 A, 3.68 to 3.91 A, 3.76 to 3.98 A, 3.77 to 4 A, 3.86 to 4.1 A, 3.88 to 4.13 A, 3.95 to 4.19 A, 4.01 to 4.4 A, 4.06 to 4.94 A, 4.22 to 4.49 A, 4.23 to 4.65 A, 4.25 to 4.54 A, 4.54 to 4.89 A, 4.78 to 5.27 A, NEMA Size 0, 00, 1, 1P, 2, 6, Frame Size B, S