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IEC TS 61643-06 ED1

Low-voltage surge protective devices - Part 6: Requirements and test methods on SPD specific disconnectors

General information

20.99     Oct 21, 2022

CD    Dec 29, 2023


TC 37/SC 37A

Technical Specification


This TS applies to SPD Specific Disconnectors (SSD) having an appropriate impulse current capability and intended for operation in systems rated up to 1000 V RMS AC and 1500V DC.
DC is under consideration.
SSDs are intended to safely disconnect an SPD from the power system in the event of end-of-life of the SPD based on e.g. leakage current, fault current, over current, short circuit current, temperature, etc.
SSDs are expected to withstand the SPD’s impulse rating.
SSDs covered by this standard are stand-alone devices which include the requested switching capability, external to the SPD.

Life cycle


IEC TS 61643-06 ED1
20.99 WD approved for registration as CD
Oct 21, 2022