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ISOSCAN® EDS440

ISOSCAN® EDS440

  • Automatic insulation fault location
  • Application main circuits
  • 12 measuring channels for measuring current transformers
  • CT connection monitoring
  • Universal system concept

The insulation fault locators ISOSCAN® EDS440 are used in connection with the ISOMETER® iso685-D-P or the locating current injector PGH to locate insulation faults in unearthed power supply systems (IT systems).
They detect locating current signals generated by the insulation monitoring device iso685-D-P or IRDH575 or the locating current injector PGH and evaluate them correspondingly. Up to 12 measuring current transformers can be connected to an EDS440. In total, up to 21 insulation fault locators can be connected via an RS-485 interface (BS bus protocol) and thereby up to 252 outgoing circuits can be monitored.

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  • Features
  • Applications
  • Accessories
  • Ordering information
  • Downloads
  • Universal system concept
  • Modular design, therefore easily adjustable to the given circumstances
  • Measuring current transformers available in various sizes and versions
  • CT connection monitoring
  • 12 measuring channels for measuring current transformer series W…, WR…, WS…
  • Fault memory behaviour selectable
  • Configuration possibilities enable individual adjustments
  • Up to 21 EDS insulation fault locators in the system, 252 measuring channels
  • Response sensitivity 2…10 mA
  • AC residual current measurement with configurable response value
  • Two alarm relays with one N/O contact each
  • N/O or N/C operation selectable
  • External test/reset button via digital inputs
  • Indication via iso685-D-P or LEDs
  • Central indication of faulty outgoing circuits
  • Serial interface RS-485, BS bus address range 2…90
  • Connection to higher-level control and visualisation systems possible
  • Insulation fault location in AC, 3AC and DC IT systems
  • Main circuits and control circuits in industrial plants and ships
  • Diode-decoupled DC IT systems in power plants
  • Systems for medical locations

 

Optional accessories for ISOSCAN® EDS440

Accessories
TypeSupply voltage USArt. no.
DI-1PSM (RS-485 repeater)AC/DC 24 V ± 20 %B95012044
DI-2USB (interface converter RS-485/USB) with USB cableSupplied by USB interfaceB95012045
AN471 (power supply unit for DI-1 or DI-2)AC 230 V 50/60 Hz /
AC, DC 20 V		B924189
Snap-on mounting W20…/35…B98080501
Snap-on mounting W60…B98080502

Measuring current transformer for EDS440
TypeInternal diameter/mmDesign typeArt. no.
W2020circularB98080003
W3535circularB98080010
W6060circularB98080018
W120120circularB98080028
W210210circularB98080034
WS20x3020 x 30split-coreB98080601
WS50x8050 x 80split-coreB98080603
WS80x12080 x 120split-coreB98080606

Alternative measuring current transformer from the Bender program
TypeInternal diameter/mmDesign typeArt. no.
W10/60010circularB911761
W0-S2020circularB911787
W1-S3535circularB911731
W2-S7070circularB911732
W3-S105105circularB911733
W4-S140140circularB911734
W5-S210210circularB911735
WR 70x175S70x175rectangularB911738
WR 115x305S115x305rectangularB911739
WR 150x350S150x350rectangularB911740
WR 200x500S200x500rectangularB911763
WS 50x80S50x80split-coreB911741
WS 80x80S80x80split-coreB911742
WS 80x120S80x120split-coreB911743
WS 80x160S80x160split-coreB911755

Variants of ISOSCAN® EDS440


TypeSupply voltage US*Response valueArt. no.
EDS440-S-1AC/DC 24…240 V2…10 mAB91080201
EDS440-L-4AC/DC 24…240 V2…10 mAB91080202
*Absolute values

Downloads for ISOSCAN® EDS440

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