Thermal Unit, Trip Class 20, Overload Protection Type Thermal, Full Load Current 4.8 to 5.26 A, NEMA Size 1, 3, 4, 5, Compatible with Series MS, Compatible with Grainger Part Number 1H385, 1H396, 1H397, Compatible Manufacturer Model Number MST01, MST01AH, MST01DN, MST01DN1P, MST01EH, MST01FN, MST01SN, MST01SN1P, MST02, MST02AH, MST02DN, MST02DN1P, MST02EH, MST02FN1P, MST02RN1PH, MST02SN, MST02SN1P. This item has been restricted from sale in the following state (s): []