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KN 61000-4-4 Testing – Electrical Fast Transient/Burst Immunity

The scope of the IEC 61000-4-4 test standard and KN 61000-4-4 test standard relates to the immunity of electrical and electronic equipment to repetitive electrical fast transients. KN 61000-4-4 test labs provide immunity requirements and test procedures related to electrical fast transients/bursts. KN 61000-4-4 testing additionally defines ranges of test levels and establishes test procedures.

The object of KN 61000-4-4 testing is to establish a common and reproducible reference for evaluating the immunity of electrical and electronic equipment when subjected to electrical fast transient/bursts on supply, signal, control, and earth ports. The test method followed by a KN 61000-4-4 test lab describes a consistent method to assess the immunity of an equipment or system against a defined phenomenon.

KN 61000-4-4 defines:

  • test voltage waveform
  • range of test levels
  • test equipment
  • verification procedures of test equipment
  • test set-up
  • test procedure

KN 61000 4 4 testing gives specifications for laboratory and post-installation tests. The repetitive fast transient test is a test with bursts consisting of several fast transients, coupled into a power supply, control, signal, and earth ports of electrical and electronic equipment. Significant for the test is the high amplitude, the short rise time, the high repetition rate, and the low energy of the transients. The test is intended to demonstrate the immunity of electrical and electronic equipment when subjected to types of transient disturbances such as those originating from switching transients (interruption of inductive loads, relay contact bounce, etc.).

Keystone Compliance has expansive fast transient and burst immunity capabilities, which have allowed it to become one of the preeminent KN 61000-4-4 test labs in the country. Our unique approach focuses on compliance. Our team strives to assist every manufacturer with meeting the requirements of KN 61000-4-4 testing. From shielding to gasketing to cable lengths, our team identifies where the obstacles are occurring and what engineering modifications need to occur for the device to meet the KN 61000-4-4 test requirements.Keystone Compliance assists manufacturers with IEC 61000-4-4 and KN 61000-4-4 compliance testing. Please contact us for more information on how Keystone Compliance can assist you with identifying and fulfilling your KN 61000-4-4 test lab needs.