V 3P4016DS - The AC tapped transformer of the series V are suitable for voltage dips and voltage variation test. The tapped transformer is suitable for testing 3-phase EUT in delta and star connection as per IEC 61000-4-11 Ed 2 : 2004-03. V 3P4016DS: 3 x 0 - 400V (L-L) / 16A AC, 50 / 60 Hz. Input Range: 3 x 380V – 440V. Step at 40%, 70%,80% and 100%.