... , 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 ... can be changeable, but the accuracy is unchangeable Power factor meter