IEC 61643-31:2018 ED1

Low-voltage surge protective devices - Part 31: Requirements and test methods for SPDs for photovoltaic installations IEC 61643-31:2018 ED1

Publication date:   Jan 10, 2018

General information

60.60 Standard published   Jan 10, 2018


TC 37/SC 37A

International Standard

29.240.01   Power transmission and distribution networks in general | 29.240.10   Substations. Surge arresters



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IEC 61643-31:2018 is applicable to Surge Protective Devices (SPDs), intended for surge protection against indirect and direct effects of lightning or other transient overvoltages. These devices are designed to be connected to the DC side of photovoltaic installations rated up to 1 500 V DC. These devices contain at least one non-linear component and are intended to limit surge voltages and divert surge currents. Performance characteristics, safety requirements, standard methods for testing and ratings are established. SPDs complying with this standard are exclusively dedicated to be installed on the DC side of photovoltaic generators and the DC side of inverters. SPDs for PV systems with energy storage (e.g. batteries, capacitor banks) are not covered. SPDs with separate input and output terminals that contain specific series impedance between these terminal(s) (so called two-port SPDs according to IEC 61643-11:2011) are not covered. SPDs compliant with this standard are designed to be permanently connected where connection and disconnection of fixed SPDs can only be done using a tool. This standard does not apply to portable SPDs.
The contents of the corrigendum of June 2022 have been included in this copy.

Life cycle


IEC 61643-31:2018 ED1
60.60 Standard published
Jan 10, 2018


IEC 61643-31:2018/COR1:2022 ED1