For almost 40 years, many worldwide organizations have developed standards that form the basis of our understanding of the surge environment and its effect on equipment. These surge protection working groups have been the catalyst for many of the advances that have been made related to the optimal performance, increased reliability and safety of surge protectors.

The most well-known reference standards are*:

Surge Protectors for Low-Voltage installations:

  • UL1449 - AC and DC Power SPD (USA)
  • CSA C22.2 (CANADA)
  • IEC 61643-11 (International)
  • NF EN 61643-11 (France)
  • VDE 0675-6-11 (Germany)
  • EN 61643-11 (Europe)

Surge Protectors for data and RF equipment:

  • UL 497A - Primary Data SPD (USA)
  • UL 497B - Secondary Data SPD (USA)
  • UL 497E - RF Antenna SPD (USA)
  • IEC 61643-21 (International)
  • ITU-T recommendations K11, K12, K17, K20, K21, K36 (International)

Surge Protectors mandatory application:

  • NFPA 70 - NEC - National Electric Code (USA)
  • NFPA 79 - Electrical Standard for Industrial Machinery (USA)
  • NFPA 780 - Guide on Electrical Inspections (USA)

Surge Protectors recommended guidelines:

  • ANSI/IEEE C62.41 - Low-Voltage AC Power Circuits (USA)
  • ANSI/IEEE C136.2 - Roadway & Area Lighting (USA)

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