Rectang/Round Moving Iron AC Ammeters Accuracy:Class 1.5 Spec.:0.1A,0.5A...60A.For 10A-10KA, ... use external current transformer.. RectangRound Moving Iron AC Ammeters 1. Model: SFT-80, SFT-780, SFT-680, SFT-670 ... system waveform.The nominal mark is T.2. Accuracy: Class 1.5.3. Specification: 0.1A, 0.5A, 1A, 3A, ... further enquiry, welcome to contact us. Rectang/Round Moving Iron AC Ammeters