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The Zener Barrier is a dual-channel, AC version device designed for intrinsic safety applications. With a working voltage of 19 V at 10 µA and maximum series resistance of 327 Ω, it provides reliable protection in hazardous environments.
The Zener Barrier is a critical component in the realm of intrinsic safety, specifically designed to protect electrical equipment in potentially explosive atmospheres. This device employs Zener diode technology to limit voltage and current, ensuring that any faults cannot ignite flammable gases or dust. The barriers are typically used in conjunction with sensors and actuators in industries such as oil and gas, chemical processing, and pharmaceuticals, where safety is paramount.
Commonly mounted on DIN rails, the Zener Barrier facilitates a star connection configuration, enhancing the flexibility of installation in various industrial settings. With a fuse rating of 50 mA and robust design, this device ensures long-term reliability and operational safety. The use of Zener Barriers is essential for compliance with international safety standards, making them indispensable in the design of safe control loops for hazardous locations.
| Degree of protection | IP20 |
| Type | AC version |
| Connection | terminals 1, 2; 3, 4 |
| Core cross-section | max. 2 x 2.5 mm2 |
| Fuse rating | 50 mA |
| Storage temperature | -25 … 70 °C (-13 … 158 °F) |
| Construction type | modular terminal housing , see system description |
| Connection | terminals 5, 6; 7, 8 |
| EU-type examination certificate | BAS 01 ATEX 7005 |
| Relative humidity | max. 75 % , without condensation |
| Series resistance | min. 301 Ω |
| Supplementary information | Observe the certificates, declarations of conformity, instruction manuals, and manuals where applicable. For information see www.pepperl-fuchs.com. |
| Certificate | TV 99 ATEX 1484 X |
| Dimensions | 12.5 x 115 x 110 mm (0.5 x 4.5 x 4.3 inch) |
| Mounting | on 35 mm DIN mounting rail acc. to EN 60715:2001 |
| Nominal resistance | 300 Ω |
| Mass | approx. 150 g |
| Connection | screw terminals |
| Degree of protection | IEC 60529 |
| IECEx approval | IECEx BAS 09.0142 IECEx BAS 17.0091X |
| Series resistance | max. 327 Ω |
| Ambient temperature | -20 … 60 °C (-4 … 140 °F) |
Currently, the goods have no revocation.
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