IEC 61000-4-11 AND 61000-4-34 VOLTAGE DIP IMMUNITY STANDARDS

Both standards specify the same depths and durations of voltage dips, and explain how to apply these dips to single-phase and three-phase equipment. 61000-4-11 applies to equipment rated up to 16 Amps per phase, and 61000-4-34 applies to equipment rated at more than 16 Amps per phase; otherwise, the two standards are essentially identical.

Powerside (Power Standards Lab) was deeply involved with developing and writing both standards. The Industrial Power Corruptor is essentially the reference design for test equipment specified by these standards. Although these standards are similar toF47SagSmall the SEMI F47 standard, they use slightly different dip depths. These standards also make the three-phase testing vectors much clearer than SEMI F47.