The QMB SPD unit is a high-performance modular surge protective device
based on the IMA SPD platform. These units are available factory assembled
or individually for retrofit applications. They plug easily onto the bus
stack of a QMB Panelboards or Switchboards.

• Versatility. QMB plug-on units with
  Surgelogic SPD can be installed in QMB panelboards and switchboards.
  Peak surge current ratings per phase range from 120kA to 240kA.
• Compact Design. The Integrated QMB SPD
  unit requires only 9“ of full width mounting space. Much less
  space than an externally mounted SPD device.
• 200 kA. QMB plug-on units with Surgelogic SPD meet the new
  2002 NEC, and 2003 UL 1449 Short Circuit Current Rating requirements.
• Retrofit Ready. The QMB plug-on SPD
  units are suitable for retrofit in all existing QMB panelboards and
  switchboards. This equates to over 30 years of installed base having
  retrofit potential.
• Labor and Money Savings. Easily installs
  in less than one minute and reduces the amount of cable and conduit
  required compared to wall mounted SPD units. Plus all phase connections
  are pre-wired at the factory.
• Application Flexibility. The QMB plug-on
  SPDunit is suitable for service entrance and non-service entrance
  application.
• Competitively Priced. The QMB plug-on
  SPDunit has been price positioned at market levels that are competitive
  with comparable units.
  Lower Installed Cost. The total installed cost of a QMB plug-on SPD
  unit is approximately $400 less than a comparable externally mounted
  SPDthat has been installed and wired by the electrical contractor.
• Lower Installed Cost. The total installed
  cost of a QMB plug-on SPD unit is less than a comparable
  externally mounted SPD that has been installed and wired by the electrical
  contractor.

Documentation: