Pulse isolator, transistor

Pulse isolator, transistor

The ACT20X HDI SDO S / 2HDI-2SDO-S isolating switch amplifiers are specially designed for recording NAMUR sensor signals and digital switching signals which originate from Ex zone 0.

Negative-switching (NPN) transistor outputs are used to transmit the signals to applications in the safe zone.


Integrated alarm contacts issue an alert in the event of a malfunction; this makes troubleshooting easier and increases system availability.


The rail mounted disconnect-switch amplifiers are optionally available in one- or two-channel versions.
 With 11 mm width per channel, the devices need little space in the electrical cabinet.

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ACT20X: The intrinsically safe solution
4 products found
  • Item No.
    2456100000
    Version
    EX signal isolating converter, Ex-input: NAMUR sensor/switch, Safe-output: Optocoupler, 2-channel
    Data sheet
    Packaging unit: 1 items
  • Item No.
    2456070000
    Version
    EX signal isolating converter, Ex-input: NAMUR sensor/switch, Safe-output: Optocoupler, 1-channel
    Data sheet
    Packaging unit: 1 items
  • Item No.
    8965360000
    Version
    EX signal isolating converter, Ex-input: NAMUR sensor/switch, Safe-output: Optocoupler, 1-channel
    Data sheet
    Packaging unit: 1 items
  • Item No.
    8965390000
    Version
    EX signal isolating converter, Ex-input: NAMUR sensor/switch, Safe-output: Optocoupler, 2-channel
    Data sheet
    Packaging unit: 1 items