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Integrated Suppression Module - ISM Series

Integrated Suppression Module - ISM Series

Integrated Suppression Module®- ISM™ is a Type 4 SPD sub-assembly that is suitable for use in Type 1 or Type 2 SPD locations allowing for easy integration into higher-level systems. It can be used as an integral component for custom switchgear, switchboard, panelboard, and motor control center applications.


  • Extends equipment life by reducing equipment degrading high-frequency line noise and transient
  • Compact design for quick and easy installation
  • Mastermind advanced monitoring available as an option for remote monitoring
  • Standard 15-year warranty


  • Component SPD suitable for use in Type 1 or Type 2 applications
  • Individually fused and thermally protected MOVs ensuring seamless product performance in the event of single MOV failure
  • Heavy-duty filter capacitors ensure industry's best high-frequency noise and transient filtering
  • Several remotely mountable monitoring packages that allow for the module to be recessed inside other pieces of equipment while still being capable of monitoring the system

Technical Specifications

  • Extensive kA rating and voltage offerings
  • Single surge rated and tested

Standards, Certifications, Classifications

  • UL listed 1449 5th edition for Type 1 and Type 2 applications
  • RoHS compliant
  • cUL, and UL 1283
  • UL96A master label for lightning protection systems


  • Renewable energy
  • Motion
  • Food and beverage
  • Critical power facilities: Hospitals, Financial institutions, airports, data centers
  • Educational institutions
  • Wastewater treatment plants
  • Transportation
  • Oil, gas, and chemicals

Downloadable Resources

ISM Datasheet

ISM Installation and Operations Manual