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Pepperl+Fuchs: Switch Amplifiers for Multiple Voltage Ranges

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November 16, 2022

Some applications require different supply voltages. What previously had to be solved with several switch amplifiers can now be handled by one single device of the new switch amplifier product family from Pepperl+Fuchs.

One Solution for Many Voltage Ranges

In mechanical engineering or, for example, for field box installations, users often face the problem that the application requires the use of several switch amplifiers with different power supplies. For plant operators, this means that they have to keep several components in several places at once: on stock, in catalogs, in planning and, of course, in the service technicians’ toolbox. The new product family of switch amplifiers KFU8-SR-Ex from Pepperl+Fuchs offers a solution that is both efficient and reliable. The new components feature several highlights at once: supply with 19 to 30 VDC or 90 to 253 VAC, use in intrinsically safe applications, and classification for safety applications up to SIL 2.

High-tech for Wide Range Power Supply

There are numerous technical features that make the new switch amplifiers efficient and powerful. For this, it is worth taking a look at how the new product family works. Within an application, the new switch amplifiers transfer binary signals from NAMUR sensors or mechanical contacts from the hazardous area to the safe area. A proximity sensor controls the load on the control system via a changeover relay contact. The operating direction can be reversed. All modules feature line fault monitoring: during a fault condition, the relays de-energize and the fault is indicated via LEDs in accordance with NAMUR NE44.

Highlights

  •    –   Wide range supply with 19…30 VDC or 90…253 VAC
  •    –   Single and 2-channel solutions
  •    –   Reversible operating direction
  •    –   Line fault monitoring
  •    –   International certifications: ATEX, IECEx, UL
  •    –   SIL 2 ed2 according to IEC/EN 61508

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