... .1.2.Output voltage: 60, 100, 220, 380, 0-120% of each range can be continually adjusted.3.Output current: 0 ... .5A, 1A, 2.5A, 5A, 10A, 20A, 60A, 0-120% of each range can be continually adjusted.4.Phase scope: 0 ... %.7.Output voltage and current distortion: <1.0%.8. Range of frequency is from 45.00 to 65.00Hz, adjusted resolution ... : AC 220±10%. DZ603-3B Portable Three Phase Energy Meter Testing Equipment