VariTrans A 20300

Signal Doubler


Signal doublers with two switchable calibrated outputs in a 6 mm housing, also for applications with high output loads.


  • Safety in the smallest of space
    4-port isolation in a 6-mm modular housing
  • Signal doubling
    combined with signal conversion
  • Load increase
    up to 1000 ohms possible for inputs with high input impedances
  • Standards-compliant personal protection
    through protective separation according to EN 61140
  • Flexible use
    with DIP switches accessible from the outside
  • Calibrated range selection
    without complicated trimming
  • Low-cost solution
    Only one compact, low-cost device is required instead of two conventional isolators
  • International use
    UL/CSA approvals
  • 5-year warranty

The VariTrans A 20300 signal doubler is an extremely compact product which also provides a cost-effective solution to the problem of isolating and transmitting 0(4) to 20 mA and 0 to 10 V standard signals to two 0(4) to 20 mA output channels with galvanic isolation of the input, outputs, and power supply.

Its input, both outputs, and power supply are decoupled from one another (four-port isolation).




Catalog Excerpts

Catalog Excerpt - VariTrans A 20300

Catalog Excerpt (en)

308 |  VariTrans A 20300
Product Description | Specifications | Product Range
PDF (file size: 0.86 MB)


Manual - VariTrans A 20300

Manual (en)

313 |  VariTrans A 20300
PDF (file size: 0.21 MB)
Manual - VariTrans A 20300

Manual (en)

13391 |  ZU 0677 (Power terminal block)
PDF (file size: 0.22 MB)

Certificates / Approvals

EU Declaration of Conformity - VariTrans A 20300

EU Declaration of Conformity (en)

11257 |  VariTrans A 20300P0
Document No. EU170523A | 2017-05-23
PDF (file size: 1.39 MB)
Certificate of Compliance (UL) - VariTrans A 20300

Certificate of Compliance (UL) (en)

11315 |  for A 20300 and BL 530
Document No. 20130821-E220033 | 2013-08-21
PDF (file size: 0.39 MB)
TR Declaration EAC - VariTrans A 20300

TR Declaration EAC (en)

12727 |  ProLine Devices
PDF (file size: 1.31 MB)