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The main function of the safety barrier is to restrict the dangerous energy of the safe place from entering the dangerous place, and to limit the voltage and current sent to the dangerous place. The Pepperl+Fuchs Zener Z is used to limit the voltage. P+F Pepperl+Fuchs safety barrier When the circuit voltage is close to the safe limit voltage value, the Zener tube is turned on, so that the voltage at both ends of the Zener tube is always kept below the safe limit voltage value.

Pepperl+Fuchs Safety Barrier

The isolation barrier of the safety barrier is the most commonly used type. The isolation barrier adopts a circuit structure that electrically isolates the input, output and power supply from each other, and at the same time meets the requirements of intrinsically safe energy limitation. Compared with Zener-style security, although the price is slightly higher, its other outstanding advantages have brought greater benefits to user applications. Pepperl+Fuchs isolated safety barrier can output two mutually isolated signals to provide to two devices using the same signal source, and ensure that the signals of the two devices do not interfere with each other, and at the same time improve the electrical safety insulation performance of the connected devices . Comparing the characteristics and performance of Zener and isolated safety barriers, it can be seen that P+F Pepperl+Fuchs isolated safety barriers have outstanding advantages and a wider range of uses. Although its price is slightly higher than that of Zener safety barriers, Considering the cost of design, construction, installation, commissioning and maintenance, the overall cost may be lower than the Zener safety barrier. Pepperl+Fuchs almost invariably uses isolated safety barriers as the main intrinsically safe explosion-proof instruments in high-demand engineering sites. Pepperl+Fuchs isolated safety barriers have gradually replaced Zener safety barriers and have become increasingly widespread in the field of safety and explosion protection. Applications.