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    • SPD Product Selection Guide
      • Temporary Overvoltages
      • SL3 Series Project-Specific Surge Current Selection Chart
        • SL3-300 Application Guide
        • SL3-250 Application Guide
        • SL3-200 Application Guide
        • SL3-150 Application Guide
        • SL3-125 Application Guide
        • SL3-100 Application Guide
        • SL3-80 Application Guide
        • SL3-50 Application Guide
      • TG3 Series Project-Specific Surge Current Selection Chart
        • TG3-300 Application Guide
        • TG3-250 Application Guide
        • TG3-200 Application Guide
        • TG3-150 Application Guide
        • TG3-125 Application Guide
        • TG3-100 Application Guide
        • TG3-80 Application Guide
        • TG3-50 Application Guide
      • PX3 Series Project-Specific Surge Current Selection Chart
        • PX3-200 Application Guide
        • PX3-150 Application Guide
        • PX3-125 Application Guide
        • PX3-100 Application Guide
        • PX3-80 Application Guide
        • PX3-50 Application Guide
      • CG Series Project-Specific Surge Current Selection Chart
        • CG-200 Application Guide
        • CG-150 Application Guide
        • CG-120 Application Guide
        • CG-100 Application Guide
        • CG-80 Application Guide
        • CG-60 Application Guide
        • CG-40 Application Guide
    • SPD Product Information
      • Select (SL3) Series
      • TransGuard (TG3) Series
      • Panel Extension (PX3) Series
      • CurrentGuard (CG) Series
      • High Performance Interconnect Cable
      • LoadGuard
      • Performance Monitoring Systems
    • SPD Technical Information
  • Powersmiths
    • Transformer Product Information
      • OPAL™ Series Transformers
    • Transformer Application Information
      • ESaver-33L Transformers
      • ESaver-25H Transformers
      • T1000-30H Transformers
    • Transformer Technical Information
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SPD Technical Information


SPD Application Guide

NEC Requirements for SPDs

White Paper-Surges, Overvoltages and Enhanced Protection