Switching repeater Series 9170

The Series 9170 Ex i switching repeaters are used to operate contacts, NAMUR proximity switches and optocouplers. Models are available with one or two channels. The intrinsically safe digital input is always galvanically separated from the output and auxiliary power. The channels in the two-channel devices are galvanically separated. Certain variants transmit frequencies of up to 10 kHz, and the output signal can be inverted.

  • For use up to SIL 2 (IEC/EN 61508)
  • A wire breakage and short-circuit monitoring system, which can be disconnected and includes messages
  • Variants with line fault transparency: The device notifies the control system directly of any field-side line faults via the signal output

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