Thermal Unit Trip Class 20 Overload Protection Type Melting Alloy Full Load Current 32.2 to 34.2 A 32.4 to 34.9 A 34.3 to 36.9 A 34.8 to 37.3 A 36.3 to 38.8 A 36.6 to 39.1 A 36.7 to 39.3 A 37.1 to 39.6 A 38.1 to 41.1 A 39.4 to 42.3 A NEMA Size 3 Frame Size CC S