... 15A 20A 25A 30A 40A 50A 60A 75A 100A For 5A-10KA use external current transformer with secondary current 5A and 1A. Notes: For ... 60A, 75A, 100A meters, when these meters directly ... to circuit, their accuracy is class 2.5. For 20A-60A direct reading SF-48 meters, the accuracy is class 2 ...