Salient features suitable for 3p, 4w lt application.three line lcd backlit display.displays:- voltage, current & frequency.three push buttons on the front panel for programming and scrolling.ct secondary -1a or -5 a (user selectable).ct primary can be varied from 5a to 6000a in steps of 5 for -5a.ct primary can be varied from 1a to 1200a in steps of 1 for -1a.ip 54 degree of protection.available in class accuracy 1.0