IEC Standards

Surge protection selection should follow applicable IEC standards and actual project requirements. Avoid claiming certifications that are not available for the specific product model.

IEC 61643-11

AC Power SPD

Applies to low-voltage surge protective devices connected to low-voltage power systems.

IEC 61643-31

Photovoltaic DC SPD

Applies to surge protective devices used in photovoltaic DC installations.

IEC 61643-21

Signal & Telecom SPD

Applies to surge protective devices connected to telecommunications and signalling networks.

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