IEC 61000-4-34 Voltage Drops, Short Interruptions and Voltage Variations Immunity Test Standard

Electric Electronic Tests

IEC 61000-4-34 Voltage Drops, Short Interruptions and Voltage Variations Immunity Test Standard

IEC 61000-4-34 defines immunity test methods and the preferred range of test levels for electrical and electronic equipment connected to low voltage power supply networks for voltage drops, short interruptions and voltage variations. This standard applies to electrical and electronic equipment with a rated input current exceeding 16 A per phase. It covers equipment installed in residential areas and industrial machinery, especially voltage drops and short interruptions for equipment connected to 1 Hz or 3 Hz ac networks, including 50-phase and 60-phase mains.

IEC 61000-4-34 Voltage Drops, Short Interruptions and Voltage Variations Immunity Test Standard

The purpose of this standard is to establish a common reference for evaluating the immunity of electrical and electronic equipment when subjected to voltage drops, short interruptions and voltage fluctuations. The test method documented in this section of IEC 61000 describes a consistent method for assessing the immunity of equipment or a system to a defined phenomenon.

Equipment with a rated input current of 16 A per phase or less is covered by publication IEC 61000-4-11. There is no upper limit for the rated input current in this publication. However, in some countries, due to mandatory safety standards, the rated input current may be limited to some higher values, for example 75 A or 250 A.

It does not apply to electrical and electronic equipment for connection to 400 Hz ac networks. Testing of equipment connected to these networks will be covered by future IEC standards.

The purpose of this standard is to establish a common reference for evaluating the immunity of electrical and electronic equipment when subjected to voltage drops, short interruptions and voltage fluctuations.


IEC 61000-4-34 test services are provided by EUROLAB to businesses within the scope of voltage drops, short interruptions and voltage variations immunity tests.

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