... , 50A, 75, 100A (use Ext. CT 5A) Note: For 60/75/100A direct meter, the class in 2.5. Advantage: The scale ... :30V, 50V, 75V, 100V, 120V, 150V, 250V, 300V, 450V, 600V (For 450-380KV,should be used with potential transformer whose secondary ... , 10A, 20A, 30A, 50A, 75,100A (used with Shunt) Note: For 60/75/100A direct meters, the class in 2.5 ...