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Zener Barriers

Zener barriers provide cost saving Ex-protection for various applications in process automation systems. The amount of energy transferred to the hazardous location is limited to a safe level incapable of igniting the explosive atmosphere.

Z-system zener barriers from Pepperl Fuchs are directly mounted on a 35 mm DIN-Rail. Through accessories, the required grounding can be done directly on the DIN mounting rail.

  • Fast mounting on the DIN-rail
  • Grounding directly connected with DIN-rail
  • Separation of field loop by removing the fus

Z-system zener barriers are available with high density up to 2 channels / 12,5 mm width. Variants with field replaceable fuses provide a convenient means of disconnecting or open-circuiting the instrument loop without interfering with the wiring, making commissioning and maintenance operations much easier.

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Zener Barrier (Z040)
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Zener Barrier (Z040)

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2-channel, DC version, positive polarity, Working voltage 1 V at 1 µA, Series resistance max. 50 Ω, Fuse rating 100 mA, DIN rail mountable, Number of channels: 2-channel, Type: DC, positive, Working voltage: terminals 5, 6: max. 5 V, 3 V at 10 µA (1 V at 1 µA)
terminals 7, 8: max. 5 V, 3 V at 10 µA (1 V at 1 µA)

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Zener Barrier (Z041)

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2-channel, DC version, positive polarity, Working voltage 6 V at 1 µA, Series resistance max. 2030.5 Ω, Fuse rating 80 mA, DIN rail mountable, Number of channels: 2-channel, Type: DC, positive, Working voltage: terminals 5, 6: max. 7.5 V, 7 V at 10 µA (6 V at 1 µA) terminals 7, 8: max. 7.5 V, 7 V at 10 µA (6 V at 1 µA)

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Zener Barrier (Z042)

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2-channel, DC version, positive polarity, Working voltage 1 V at 1 µA, Series resistance max. 209.5 Ω, Fuse rating 100 mA, DIN rail mountable, Number of channels: 2-channel, Type: DC, positive, Working voltage: terminals 5, 6: max. 5 V, 3 V at 10 µA (1 V at 1 µA) terminals 7, 8: max. 5 V, 3 V at 10 µA (1 V at 1 µA)

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Zener Barrier (Z705)

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1-channel, DC version, positive polarity, Working voltage 0.9 V at 1 µA, Series resistance max. 18.18 Ω, Fuse rating 250 mA, DIN rail mounting, Number of channels: 1-channel, Type: DC, positive, Working voltage: 0.9 V at 1 µA

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Zener Barrier (Z710)

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1-channel, DC version, positive polarity, Working voltage 6.5 V at 10 µA, Series resistance max. 56 Ω, Fuse rating 100 mA, DIN rail mountable, Number of channels: 1-channel, Type: DC, positive, Working voltage: 6.5 V at 10 µA

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Zener Barrier (Z713)

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1-channel, DC version, positive polarity, Working voltage 13.7 V at 10 µA, Series resistance max. 29 Ω, Fuse rating 160 mA, DIN rail mounting, Number of channels: 1-channel, Type: DC, positive, Working voltage: 13.7 V at 10 µA

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Zener Barrier (Z722)

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1-channel, DC version, positive polarity, Working voltage 19 V at 10 µA, Series resistance max. 166 Ω, Fuse rating 50 mA, DIN rail mounting, Number of channels: 1-channel, Type: DC, positive, Working voltage: max. 19.5 V , 19 V at 10 µA

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Zener Barrier (Z715.1K)

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1-channel, DC version, positive polarity, Working voltage 13 V at 10 µA, Series resistance max. 1025 Ω, Fuse rating 100 mA, DIN rail mounting, Increased nominal resistance 1 kΩ, Number of channels: 1-channel, Type: DC, positive, Working voltage: max. 13.3 V , 13 V at 10 µA

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Zener Barrier (Z715.F)

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1-channel, DC version, positive polarity, Working voltage 13 V at 10 µA, Series resistance max. 121 Ω, Fuse rating 63 mA, DIN rail mounting, Replaceable fuse, Number of channels: 1-channel, Type: DC, positive, Working voltage: max. 13.3 V , 13 V at 10 µA

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Zener Barrier (Z715)

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1-channel, DC version, positive polarity, Working voltage 13 V at 10 µA, Series resistance max. 107 Ω, Fuse rating 100 mA, DIN rail mounting, Number of channels: 1-channel, Type: DC, positive, Working voltage: max. 13.3 V , 13 V at 10 µA

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