​ETS-Lindgren's N258X High Current RFI/EMP Power Filters are designed for use on main incoming three phase and neutral supplies, carrying up to 800 Amps and 400 Amps respectively, and are ideal for use in EMPP systems and other applications.These filters are extremely compact and lightweight for their current carrying capability and offer a very low power dissipation and temperature rise.

Applications include:

  • Filtering of industrial plants and computer facilities
  • Tempest applications
  • Filtering of mains incomers entering screened room facilities

Detachable end housings are supplied with the unit giving the user maximum cabling flexibility.

These filters are also available with output terminations through the base. Please consult the sales office for further details. Solid and permanent earthing of the case of these filters is essential for safety reasons and to ensure optimum performance.

Key Product Information

Specifications Select a tab below for more information

Current Rating: 800 Amps
Frequency: 50/60 Hz
Number of Lines: 4
Voltage Frequency Maximum: 440/250

View BIM Models of our Product Options Below:



Key Features

  • Tempest Capability
  • Compact and Lightweight
  • Low Power Dissipation
  • Amp Range: 400 to 800 Amps
  • Frequency: 50/60

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Date Last Updated: Monday, August 20, 2018
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