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Thu Oct 18 21:28:31 2018
Thu Oct 18 21:28:31 2018
ISOSCAN® EDS441

ISOSCAN® EDS441

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

The insulation fault locators ISOSCAN® EDS441 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 EDS441. 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.

  • 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…, W…-8000, WS…, WS…-8000, W…AB
  • Fault memory behaviour selectable
  • Configuration possibilities enable individual adjustments
  • Up to 21 EDS insulation fault locators in the system, 252 measuring channels
  • Response sensitivity 0.2…1 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® EDS441

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 EDS441

TypeInternal diameter/mmDesign typeArt. no.
W20-800020circularB98080009
W35-800035circularB98080017
W60-800060circularB98080027
WS20x30-800020 x 30split-coreB98080602
WS50x80-800050 x 80split-coreB98080604

Alternative measuring current transformer from the Bender program

TypeInternal diameter/mmDesign typeArt. no.
W10/800010circularB911759
W1-35/800035circularB911756
W10/8000-610circular, 6-foldB911900
WS20x30/800020 x 30split-coreB911764
WS50x80/800050 x 80split-coreB911757

Variants of ISOSCAN® EDS441


TypeSupply voltage US*Response valueArt. no.
EDS441-SAC/DC 24…240 V0.2…1 mAB91080204
EDS441-L-4AC/DC 24…240 V0.2…1 mAB91080205
EDS441-LAB-4AC/DC 24…240 V0.2…1 mAB91080207
*Absolute values

Downloads for ISOSCAN® EDS441

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