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The Zener Barrier is a robust two-channel device designed for applications requiring intrinsic safety in hazardous environments. It operates on a DC version with positive polarity and has a working voltage of 26.5 V at 10 µA, ensuring reliable performance in demanding conditions.
The Zener Barrier family from Pepperl+Fuchs is engineered to provide intrinsic safety solutions for electrical equipment operating in potentially explosive atmospheres. By limiting the energy available for ignition, these barriers are essential components in applications where safety is paramount, such as in the oil and gas, chemical, and pharmaceutical industries.
These barriers feature a maximum series resistance of 640 Ω and a fuse rating of 50 mA, making them suitable for a variety of two-wire sensor and actuator configurations. The DIN rail mounting design allows for easy installation and integration into existing control systems, while the diode return ensures that the device maintains signal integrity. With their ability to manage intrinsic safety requirements, Zener Barriers play a critical role in safeguarding personnel and equipment in hazardous locations.
| Core cross-section | max. 2 x 2.5 … mm2 |
| Dimensions | 12.5 x 115 x 110 mm (0.5 x 4.5 x 4.3 inch) |
| Connection | terminals 1, 2; 3, 4 |
| Nominal resistance | 300 Ω |
| Mass | approx. 150 g |
| IECEx approval | IECEx BAS 09.0142 IECEx BAS 17.0091X |
| Series resistance | max. 640 Ω |
| Ambient temperature | -20 … 60 °C (-4 … 140 °F) |
| Relative humidity | max. 75 % , without condensation |
| Type | DC version, positive polarity |
| Mounting | on 35 mm DIN mounting rail acc. to EN 60715:2001 |
| Fuse rating | 50 mA |
| Supplementary information | Observe the certificates, declarations of conformity, instruction manuals, and manuals where applicable. For information see www.pepperl-fuchs.com. |
| Construction type | modular terminal housing , see system description |
| Connection | screw terminals |
| Degree of protection | IEC 60529 |
| Degree of protection | IP20 |
| Connection | terminals 5, 6; 7, 8 |
| EU-Type Examination Certificate | BAS 01 ATEX 7005 |
| Certificate | TV 99 ATEX 1484 X |
| Series resistance | min. 307 Ω |
| Storage temperature | -25 … 70 °C (-13 … 158 °F) |
Currently, the goods have no revocation.
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