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The Zener Barrier is a 2-channel, AC version device designed for intrinsic safety applications. It operates at a working voltage of 0.9 V at 1 µA and features a maximum series resistance of 18.18 Ω, making it suitable for various hazardous environments.
The Zener Barrier is a crucial component in the realm of intrinsic safety barriers, specifically designed to protect instrumentation and control systems in potentially explosive atmospheres. These barriers serve to limit the energy available in hazardous areas, ensuring that the connected devices operate safely without igniting flammable gases or dust. The Zener Barrier allows for safe communication and control of equipment in environments where volatile substances may be present.
Commonly utilized in industries such as oil and gas, chemical manufacturing, and pharmaceuticals, the Zener Barrier is pivotal for applications involving sensors, actuators, and other electronic devices that require isolation from hazardous zones. Its design incorporates features such as DIN rail mounting for straightforward installation, and a fuse rating of 250 mA to enhance operational safety and reliability. By utilizing Zener diodes, this barrier effectively clamps voltages and regulates current, ensuring compliance with safety standards and facilitating the safe operation of devices in challenging conditions.
| IECEx approval | IECEx BAS 09.0142 IECEx BAS 17.0091X |
| Storage temperature | -25 … 70 °C (-13 … 158 °F) |
| EU-type examination certificate | BAS 01 ATEX 7005 |
| Type | AC version |
| Core cross-section | max. 2 x 2.5 … mm2 |
| Fuse rating | 250 mA |
| Connection | screw terminals |
| Mass | approx. 150 g |
| Supplementary information | Observe the certificates, declarations of conformity, instruction manuals, and manuals where applicable. For information see www.pepperl-fuchs.com. |
| Degree of protection | IEC 60529 |
| Nominal resistance | 10 Ω |
| Ambient temperature | -20 … 60 °C (-4 … 140 °F) |
| Series resistance | min. 9.8 Ω |
| Mounting | on 35 mm DIN mounting rail acc. to EN 60715:2001 |
| Connection | terminals 5, 6; 7, 8 |
| Relative humidity | max. 75 % , without condensation |
| Connection | terminals 1, 2; 3, 4 |
| Certificate | TV 99 ATEX 1484 X |
| Construction type | modular terminal housing , see system description |
| Degree of protection | IP20 |
| Dimensions | 12.5 x 115 x 110 mm (0.5 x 4.5 x 4.3 inch) |
| Series resistance | max. 18.18 Ω |
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