Medline MDS3001 Guide D'utilisation page 38

Voltage dips
Voltage interruptions
IEC 61000-4-11
IEC 61000-4-11
-38-
0% UT; 0.5 cycle
At 0º, 45º, 90º, 135º, 180º, 225º, 270º
and 315º
0% UT; 1 cycle
and
70% UT; 25/30 cycles
Single phase: at 0º
0% UT; 250/300 cycles