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The Zener Barrier is a 1-channel intrinsic safety device designed for use in hazardous environments. It ensures safe operation of electrical equipment by limiting the voltage and current levels in potentially explosive atmospheres.
The Zener Barrier is an essential component in the field of intrinsic safety, particularly for applications that require the protection of electrical equipment in explosive atmospheres. This device is engineered to limit the energy available in hazardous locations, thereby preventing ignition sources. Its primary function is to provide a safe interface between field devices and control systems by ensuring that the voltage and current remain within safe parameters.
Commonly used in industries such as oil and gas, chemical processing, and pharmaceuticals, Zener Barriers facilitate the operation of sensors, actuators, and other devices that must remain compliant with stringent safety standards. The unit features a DC version with positive polarity, a working voltage of 0.9 V at 1 µA, and a maximum series resistance of 18.18 Ω, making it suitable for a variety of applications. Additionally, the device is designed for DIN rail mounting, which simplifies installation and integration into existing control systems.
| Dimensions | 12.5 x 115 x 110 mm (0.5 x 4.5 x 4.3 inch) |
| Nominal resistance | 10 Ω |
| Construction type | modular terminal housing , see system description |
| Certificate | TV 99 ATEX 1484 X |
| Storage temperature | -25 … 70 °C (-13 … 158 °F) |
| Relative humidity | max. 75 % , without condensation |
| Degree of protection | IEC 60529 |
| Degree of protection | IP20 |
| Series resistance | min. 9.8 Ω |
| Supplementary information | Observe the certificates, declarations of conformity, instruction manuals, and manuals where applicable. For information see www.pepperl-fuchs.com. |
| Type | DC version, positive polarity |
| Connection | terminals 1, 2 |
| Ambient temperature | -20 … 60 °C (-4 … 140 °F) |
| Fuse rating | 250 mA |
| Mass | approx. 150 g |
| Series resistance | max. 18.18 Ω |
| Connection | terminals 7, 8 |
| EU-type examination certificate | BAS 01 ATEX 7005 |
| IECEx approval | IECEx BAS 09.0142 IECEx BAS 17.0091X |
| Mounting | on 35 mm DIN mounting rail acc. to EN 60715:2001 |
| Core cross-section | max. 2 x 2.5 … mm2 |
| Connection | screw terminals |
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