BSI

Multi-part Document
BS EN 61643 - Low-voltage surge protective devices

https://doi.org/10.3403/BSEN61643

This is a multi-part document divided into the following parts:

  • Part 11 Low-voltage surge protective devices. Surge protective devices connected to low-voltage power systems. Requirements and tests
  • Part 21 Low voltage surge protective devices. Surge protective devices connected to telecommunications and signalling networks. Performance requirements and testing methods
  • Part 31 Low-voltage surge protective devices. Requirements and test methods for SPDs for photovoltaic installations
  • Part 311 Low voltage surge protective devices. Specification for gas discharge tubes (GDT)
  • Part 312 Components for low-voltage surge protective devices. Selection and application principles for gas discharge tubes
  • Part 321 Low voltage surge protective devices. Specifications for avalanche breakdown diode (ABD)
  • Part 331 Low voltage surge protective devices. Specification for metal oxide varistors (MOV)
  • Part 341 Low voltage surge protective devices. Specification for thyristor surge suppressors (TSS)
  • Part 351 Components for low-voltage surge protective devices. Performance requirements and test methods for telecommunications and signalling network surge isolation transformers (SIT)

© The British Standards Institution 2026      BSI Standards  |  About this page  |  Contact us