Thermal Unit, Full Load Current 16.1 A, 16.3 to 18.9 A, 16.8 to 17.9 A, 17.6 A, 17.9 A, NEMA Size 0, 1, Compatible with Series CR1062R, CR1062S, Compatible with Grainger Part Number 3HXZ1, 3HXZ2, Compatible Manufacturer Part Number CR306C002, CR306D002