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The Zener Barrier is a 1-channel intrinsic safety device designed for DC applications, ensuring safe operation in hazardous environments. With a working voltage of 13.7 V at 10 micro-A, it features a series resistance of up to 29 Ohms and a fuse rating of 160 mA.
The Zener Barrier represents a critical component in the realm of intrinsic safety barriers, utilized primarily in industrial applications where explosive atmospheres may be present. These devices are engineered to limit the energy available to electrical equipment, thereby preventing ignition of flammable gases and vapors. The Zener Barrier operates by diverting excess voltage and current away from sensitive circuits, ensuring that the connected devices operate safely within designated parameters.
Commonly employed in process automation, chemical plants, and oil and gas industries, Zener Barriers are essential for protecting instrumentation and control systems that require operation in potentially hazardous locations. The device is designed for easy DIN rail mounting, facilitating straightforward integration into existing control panels and systems, while its robust specifications ensure reliable performance under demanding conditions.
| Core cross-section | max. 2 x 2.5 … mm2 |
| Series resistance | max. 29 andOmega; |
| Storage temperature | -25 … 70 °C (-13 … 158 °F) |
| Degree of protection | IEC 60529 |
| Mounting | on 35 mm DIN mounting rail acc. to EN 60715:2001 |
| Ambient temperature | -20 … 60 °C (-4 … 140 °F) |
| Type | DC version, positive polarity |
| Construction type | modular terminal housing , see system description |
| Connection | terminals 1, 2 |
| EU-Type Examination Certificate | BAS 01 ATEX 7005 |
| Nominal resistance | 22 andOmega; |
| Connection | screw terminals |
| Degree of protection | IP20 |
| Fuse rating | 160 mA |
| Connection | terminals 7, 8 |
| Relative humidity | max. 75 % , without condensation |
| IECEx approval | IECEx BAS 09.0142 IECEx BAS 17.0091X |
| Mass | approx. 150 g |
| Certificate | TV 99 ATEX 1484 X |
| Series resistance | min. 21.8 andOmega; |
| Supplementary information | Observe the certificates, declarations of conformity, instruction manuals, and manuals where applicable. For information see www.pepperl-fuchs.com. |
| Dimensions | 12.5 x 115 x 110 mm (0.5 x 4.5 x 4.3 inch) |
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