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ABB: Panel Extension PX3 – External Mounting


September 13, 2022

Panel Extension PX3 protects and prevents costly downtime and equipment failure. PX3 features an externally mounted surge solution that can be physically attached to the top or bottom of any panelboard providing a reduced profile surge solution. Moreover, PX3 offers an internal disconnect option, allowing safer and easier repairs without having to cut power to the distribution panel. 








  •    –   Extends equipment life by reducing equipment degrading high-frequency line noise and transients
  •    –   Designed for quick and easy installation
  •    –   Easy accessibility to real-time data via display located on the unit or remotely
  •    –   PX3 color can be matched to any switchgear and panelboard offered by a different manufacturer
  •    –   Standard 15-year warranty


  •    –   Space-saving design that fits within a standard 6-inch deep wall and conserves horizontal wall space
  •    –   Direct bus connection capability to reduce wiring lead lengths, minimizing installation impedances and improve clamping voltages
  •    –   Removable end-plate allows installation above or below panelboards
  •    –   Mastermind advance monitoring available as an option for remote monitoring

Technical Specifications

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

Standards, Certifications, Classifications

  •    –   UL listed 1449 4th edition for Type 1 and Type 2 applications
  •    –   RoHS compliant
  •    –   cUL
  •    –   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




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