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Safety barriers with electronic current limitation

R. STAHL's 9004 series INTRINSPAK single-channel zener barriers are ideally suited to supplying field devices with intrinsically safe auxiliary power due to their electronic current limitation. They have a particularly good power yield and are available in many variants for circuits with a negative or positive potential, including for unregulated power supplies.

  • For supplying field devices with intrinsically safe auxiliary power, versions for many applications
  • flexible, space-saving devices that are easy to install on a DIN rail
  • reduced storage due to standardised back-up fuse

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Class1 Division and Zone
Particularly suitable for
Application range (zones)
Ex interface zone
Max. Voltage Uo
Max. Current Io
Max. power Po
Nominal voltage
Max. resistance Rmax

1 Serie (8 Products)

Zener Barriers with Electronic Current Limitation Series 9004

  • For supplying field devices with intrinsically safe auxiliary power, variants for many applications
  • Flexible, space-saving devices that are easy to install on a DIN rail
  • Reduced storage due to standardised back-up fuse

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