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Loop-Powered Isolator for Standard Signals

IsoTrans A 20400

Thanks to an extremely high packing density of up to 320 channels per meter of mounting rail and outstanding technical properties such as protective separation, these isolators leave the competition in the dust – even when it comes to the price-performance ratio!
The IsoTrans A 20400 draws its power as a voltage drop directly from the measurement signal without falsifying it. There are no costs for a power supply and wiring. The IsoTrans A 20400 has virtually no self-heating that would cause the electronic components to age faster. Together with a patented circuit design, this means maximum reliability. The consequence of this extraordinary long service life: 5-year warranty!


  • Extremely compact design: up to 320 channels per meter
  • 1- and 2-channel versions: cheap and flexible for a
    wide range of applications
  • Galvanic isolation between the input and output:
    protection against incorrect measurements
    or damage to the equipment due to parasitic voltages
  • Protective separation up to 300 V AC/DC according to EN 61140
    to protect personnel and equipment
  • Load stop function prevents feedback
    e.g. in the case of an open output circuit
  • No power supply required, cost saving due to lower wiring effort
    no mains interference, no unnecessary self-heating and therefore
    maximum component service life
  • High accuracy: no distortion of the measurement signal
  • Maximum reliability: no repair and failure costs
  • International use: UL / CSA approvals
5-year warranty

Contact Us
Phone: +49 30 80191-0
Fax: +49 30 80191-200
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