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Profibus Ex i connectors from Erntec

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Erntec  offers a special Profibus specification for safety-orientated intrinsically safe applications.

Intrinsic safety is achieved by limiting the energy. At low voltage, this is reflected, among other things, by a higher current density in the bus line, as the devices are also supplied with power via the bus line.

With regard to the connector, the main factor is compliance with EN 50020. For example, defined clearance and creepage distances and current carrying capacity must be taken into account.

The Profibus Ex i connectors has been developed in cooperation with ABB and are approved for their S900 controller.

The individual connector alone does not require separate approval. This must always be given in conjunction with the system in accordance with the relevant directives and standards.

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