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Safety barriers with electronic current limiting Series 9004

R. STAHL's series 9004 INTRINSPAK single-channel safety barriers are ideally suited to supplying field devices with intrinsically safe auxiliary power due to their electronic current limiting. 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, variants for many applications
  • Flexible and space-saving devices that are easy to install on a DIN rail
  • Reduced stock-keeping thanks to a uniform back-up fuse

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

3 Products

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Ex Safety barriers with electronic current limiting series 9004 R. STAHL

Single-channel safety barriers, Positive w. voltage limitation, 23 ... 27 V DC, Uo=20.60 V, Io=85 mA, Po=1751 mW Zone 2

Art. No.: 159094
Product Type: 9004/51-206-085-001
Class 1 Division / Zone: Division 2 / Zone 2
Particularly suitable for: Ex i power supply, solenoid valves
Application range (zones): 2
Certificates: ATEX (PTB), IECEx (PTB), Canada (CSA)
Max. voltage Uo: 20.60 V
Max. current Io: 85 mA
Max. power Po: 1751 mW
Nominal voltage: 23.00 ... 27.00 V DC
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Ex Safety barriers with electronic current limiting series 9004 R. STAHL

Single-channel safety barriers, Positive potential, 16 V, Uo=20 V, Io=50 mA, Po=1000 mW Zone 2

Art. No.: 159068
Product Type: 9004/01-200-050-001
Class 1 Division / Zone: Division 2 / Zone 2
Particularly suitable for: Exi power supply, solenoid valves
Application range (zones): 2
Certificates: ATEX (PTB), IECEx (PTB), Canada (CSA)
Max. voltage Uo: 20 V
Max. current Io: 50 mA
Max. power Po: 1000 mW
Maximum resistance Rmax: 44 Ω
Nominal voltage: 16.00 V
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Ex Safety barriers with electronic current limiting series 9004 R. STAHL

Single-channel safety barriers, Positive, 12 V DC, Uo=16.80 V, Io=50 mA, Po=840 mW Zone 2

Art. No.: 159060
Product Type: 9004/01-168-050-001
Class 1 Division / Zone: Division 2 / Zone 2
Particularly suitable for: Ex i power supply, solenoid valves
Application range (zones): 2
Certificates: ATEX (PTB), IECEx (PTB), Canada (CSA)
Max. voltage Uo: 16.80 V
Max. current Io: 50 mA
Max. power Po: 840 mW
Maximum resistance Rmax: 30 Ω
Nominal voltage: 12.00 V DC