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The Zener Barrier is a robust 2-channel intrinsic safety device designed for applications requiring reliable voltage regulation and protection in hazardous environments. It operates on a DC version with positive polarity, making it suitable for various industrial uses.
The Zener Barrier is an essential component in the field of intrinsic safety, providing a safe interface between control equipment and hazardous areas. This device is specifically designed to limit the amount of energy available in potentially explosive atmospheres, ensuring that any faults do not lead to ignition. It achieves this by utilizing a series resistance and integrated fusing mechanisms, which allow it to operate effectively within stringent safety standards.
Common applications for Zener Barriers include use in industrial automation, process control, and instrumentation where hazardous materials are present. These barriers are typically mounted on DIN rails, providing ease of installation and integration into existing control systems. With a working voltage of 26.5 V at 10 µ-A and a maximum series resistance of 250 Ω, the device offers high reliability and performance for critical safety applications.
| Certificate | TV 99 ATEX 1484 X |
| Connection | terminals 1, 2; 3, 4 |
| Dimensions | 12.5 x 115 x 110 mm (0.5 x 4.5 x 4.3 inch) |
| Degree of protection | IEC 60529 |
| Series resistance | max. 250 Ω |
| Core cross-section | max. 2 x 2.5 … mm2 |
| Construction type | modular terminal housing , see system description |
| Mass | approx. 150 g |
| Storage temperature | -25 … 70 °C (-13 … 158 °F) |
| Series resistance | min. 235 Ω |
| Nominal resistance | 240 Ω |
| Fuse rating | 80 mA |
| IECEx approval | IECEx BAS 09.0142 IECEx BAS 17.0091X |
| Mounting | on 35 mm DIN mounting rail acc. to EN 60715:2001 |
| Connection | terminals 5, 6; 7, 8 |
| EU-type examination certificate | BAS 01 ATEX 7005 |
| 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 |
| Relative humidity | max. 75 % , without condensation |
| Connection | screw terminals |
| Ambient temperature | -20 … 60 °C (-4 … 140 °F) |
| Degree of protection | IP20 |
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