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IEC 61000-4-4, 4-5, and 4-29 were developed by the International Electrotechnical Commission (IEC) for electrical fast transient (EFT)/burst immunity tests.

IEC 61000-4-4 institutes a reproducible reference for evaluating the immunity of electrical and electronic equipment that is exposed to EFT/burst on supply, signal, control, and earth ports. The categories defined in this standard include test voltage waveform, range of test levels, test equipment, verification procedures of test equipment, test set-up, and test procedure.

when verifying the simulator output as required by IEC 61000-4-4, a 50 ohm load and attenuator that is rated for high voltage and an oscilloscope with at least 400 MHz bandwidth is needed to complete the measurement.

EFT is caused when gaseous discharge occurs (a spark in the air or other gas) and is most common with the opening of a switch where current is flowing. EFT coupling into electronic products occurs when power cables that are handling high currents are running close to power, data, and I/O cables. In order to assure electronic products will continue to be reliable when exposed to realistic levels of fast transients, it is required that they are tested for EFT immunity.

To couple EFT bursts onto data, I/O, and telecommunications lines, a Capacitive Coupling Clamp is needed. The required coupling method to AC or DC power mains is through 33nF capacitors. EFT simulators available from Avalon Test Equipment include these coupling capacitors as part of the coupler/decoupler and are designed to prevent the EFT burst from traveling back to the power mains.

61000-4-4 Waveform

IEC 61000-4-5 is a standard developed to protect equipment from lightning and industrial surges. Telecommunication lines may be exposed to lightning by a direct strike or due to an induced effect from ground change. Besides lightning, telecommunication lines may also be disturbed by power contact with main AC lines or power induction. The goal of this standard is to institute an accepted reference for evaluating the immunity of electrical and electronic equipment when exposed to surges by simulating these surges to test if the equipment is able to survive them.

Lightning can produce surge voltages in the following ways: a direct strike to an outdoor circuit that in turn produces overvoltages, an indirect strike to a possible nearby object that induces currents/voltages on the conductors, and induced electromagnetic disturbances from the rapid change of voltages and flows of current in adjacent equipment with a lightning protection device.

Combination Wave/Surge Generators3 Phase Coupling/Decoupling Networksand Telecom/Data line Couplers are the three main categories of test equipment needed to satisfy IEC 61000-4-5 requirements.

Test set-up

IEC 61000-4-29 has been developed to define a repeatable basis for testing electrical and electronic equipment when exposed to voltage dips, short interruptions, or voltage variations on DC input power ports. This standard covers low voltage DC power ports for equipment that is supplied by external DC networks. Besides being applied to electrical equipment, IEC 61000-4-29 also covers modules and subsystems when the equipment under test (EUT) rated power is great than the specified test generator capacity.

Choose from Avalon's variety of top manufacturers (Teseq, EM TestM Precision, and more) that meet IEC 61000-4-4, 4-5, and 4-29 requirements. Contact us with questions or to request a quote and Test With Confidence®.

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EM Test Compact NX5 Modular Ultra Compact Simulator

This compact generator tests according to a number of standards. Request a quote now! Fast solutions to move your business forward. Call our sales team today.

EM Test Compact NX7 Multifunctional Test Generator

The three-phase coupling/decoupling networks of the coupling NX series are used to couple EFT/Burst-, Surge- and Ring wave pulses on DC-lines or to three-phase (4-wire or 5-wire) mains supply systems for voltages up to 1,000 VDC / 3 x 690 VAC.

Haefely AXOS5 Compact Immunity Test System

Haefely AXOS5 Compact Immunity Tester combines 5kV Burst/EFT, Surge combination wave, AC/DC Dips & Interrupts, along with an integrated single-phase coupling/decoupling network (CDN) into one compact system.

Haefely AXOS8 Compact Immunity Test System

Haefely AXOS8 Compact Immunity Test System, 7 kV integrates all of the best features of several stand-alone test systems into one single economic solution. Standards: IEC/EN 61000-4-4, -4-5, -4-9, -4-11, -4-12

EM Test 20.x Three-Phase Multifunctional AC/DC Power Source

22,5 kVA AC / 27 kW DC support with wheels

EM Test EFT 500N5 Electrical Fast Transient/EFTBurst Simulator

The EFT 500N5 series are the state-of-the-art EFT/Burst testers with a built-in coupling/decoupling network for single phase or three-phase mains supply lines and a HV terminal to connect a capacitive coupling clamp.

EM Test NetWave 3.1 One-Phase Programmable Multifunctional AC/DC Power Source

Multifunctional AC/DC source, 3 kVA, as per EN/IEC 61000-4-x standards

EM Test NetWave 67.X Three-Phase Multifunctional AC/DC Power Source

67 kVA AC / 72 kW DC, support with wheels optional

EM Test NetWave 7 1-Phase Programmable Multifunctional AC/DC Power Source

Multifunctional AC/DC source, 7.5 kVA, as per EN/IEC 61000-4-x standards

EM Test NetWave 7.3 1-Phase Programmable Multifunctional AC/DC Power Source

Multifunctional AC/DC source, 7.5 kVA, as per EN/IEC 61000-4-x standards with built-in isolation transformer required to perform tests as per aircraft and military standards

EM Test UCS 500N5 Multifunctional Test Generator

For Transients (EFT/Burst, Surge, and Power Fail) Up to 5.5KV

Teseq NSG 3040-IEC Multifunction Burst Generator

Teseq’s new NSG 3040 is an easy-to-use multifunction generator that simulates electromagnetic interference effects for immunity testing in conformity with international, national and manufacturers’ standards including the latest IEC/EN standards.

Teseq NSG 3150 15 kV Combination Wave Surge Generator

TESEQ’s new NSG 3150 15 kV Combination Wave Surge generator sets a new standard in the industry and represents the perfect solution for your immunity tests in compliance with IEC/EN 61000-4-5.

M Precision EMCPro Plus EMC Test System

Thermo Scientific EMCPro Plus EMC Test System; expandable, portable, multi-function EMC test system for pre-compliance, QA, and full certification testing. Test for up to seven global EMC standards for susceptibility to electromagnetic interference and electromagnetic compatibility with a single instrument.

EM Test UCS500N7 Multifunctional Transient Immunity Simulator

The EM Test UCS500N7 Multifunctional Transient Immunity Simulator includes everything necessary to conduct fully compliant tests at levels that go far beyond common test requirements. Surge can be tested up to 7.0kV either according to IEC/EN 61000-4-5 or ANSI/IEEE C62.41. The UCS 500N7 offers an integrated Ringwave module (optional) as per ANSI/IEEE C62.41 and IEC/EN 61000-4-12 for ringwave tests on mains supply lines.

EM Test EFT 500N5.8 Burst Generator up to 4.8kV, w/ Built in 3-Phase Coupler

EM Test EFT 500N5.8 Burst Generator up to 4.8kV, w/ Built in 3-Phase Coupler

Teseq CAS 3025 Burst/EFT Pulse Verification Kit

The Teseq CAS 3025 burst/EFT pulse verification kit has been specially designed to comply with the new requirements of IEC/EN 61000-4-4:2004 to enable EMC engineers to verify their burst/EFT test generators periodically.

Haefely IP4B Capacitive Coupling Clamp for EFT / Burst for Signal and Data Cables

Haefely IP4B Capacitive Coupling Clamp for EFT / Burst for Signal and Data Cables

Teseq INA 3425 Calibration Kit for Burst/EFT Coupling Clamps

Teseq INA 3425 Calibration Kit for Burst/EFT Coupling Clamps

Teseq CDN 3083-B100 Amp Coupler for EFT/Burst

The CDN 3083-B100 can couple up to 8.8 kV (5/50 ns – 50 Ohms) EFT pulses simultaneously into the supply lines of the equipment under test (EUT).

Teseq CDN 3043-B32 3-Phase Coupling/Decoupling Network

competitively priced, high performance extension to the NSG 3040 multifunction generator series.

Teseq CDN 3043-C32 3-Phase Coupling/Decoupling Network

competitively priced, high performance extension to the NSG 3040 multifunction generator series.

Teseq CDN 3043-S32 3-Phase Coupling/Decoupling Network

CDN 3043 3-phase coupling/decoupling network series as a competitively priced, high performance extension to the NSG 3040 multifunction generator series.

Haefely FP-COMB 32 Automatic 3-Phase Coupler for AXOS System

The FP-COMB 32 is a combined automatic three-phase Coupling/Decoupling Network (CDN) for Surge Combination Wave, Ring Wave and EFT/Burst.

Teseq CDN 117 Data Line Coupling/Decoupling Network

Teseq’s CDN 117 coupling-decoupling network enables convenient testing with surge pulses of 1.2/50 μs on data, signal or peripheral lines, as specified in many product standards.

M Precision ECAT High Voltage Burst/EFT Generator

M Precision ECAT High Voltage Burst/EFT Generator up to 8 kV

M Precision CM-3CDEFT-32 Coupler/Decoupler

Coupler/Decoupler for EFT Pro-Plus

3ctest EDS 16H Electrostatic Discharge Simulator

Up to 16 kV, IEC/EN 61000-4-2 Compliance

CE Mark Product Package for IEC/EN 61000-4 Series Compliance

EM Test NX5, Teseq NSG 4070C-80, and 3ctest EDS 16H