ISOSCAN® EDS441

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

The ground-fault locators ISOSCAN® EDS44x are used in connection with the ISOMETER® iso685-D-P or the locating current injector PGH to locate ground faults in ungrounded power supply systems (IT systems).
They detect locating current signals generated by the ground-fault 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 EDS44x. In total, up to 21 ground-fault locators can be connected via an RS-485 interface (BS bus protocol) and thereby up to 252 outgoing circuits can be monitored.

Questions? Contact us!

ISOSCAN® EDS441
ISOSCAN® EDS441
  • Automatic ground-fault location
  • Application control circuits
  • 12 measuring channels for measuring current transformers
  • CT connection monitoring
  • Universal system concept

The ground-fault locators ISOSCAN® EDS44x are used in connection with the ISOMETER® iso685-D-P or the locating current injector PGH to locate ground faults in ungrounded power supply systems (IT systems).
They detect locating current signals generated by the ground-fault 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 EDS44x. In total, up to 21 ground-fault locators can be connected via an RS-485 interface (BS bus protocol) and thereby up to 252 outgoing circuits can be monitored.

Questions? Contact us!

Features

  • 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 CTAC…, WR…, WS…
  • Optional extension by 12 relay channels
  • Fault memory behaviour selectable
  • Up to 50 EDS insulation fault locators in the system, 600 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
  • Central indication of faulty outgoing circuits
  • Serial interface RS-485, BS bus address range 2…79, Modbus RTU
  • Connection to higher-level control and visualisation systems possible

Applications

  • 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

ISOSCAN® EDS441 Variant(s)

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

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
IOM441-S (Input/Output module)12-fold relay moduleB95012057


Measuring current transformer for EDS441

TypeInternal diameter/mmDesign typeArt. no.
CTAC20/120circularB98110006
CTAC35/135circularB98110008


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


Measuring current transformer for EDS441-LAB

TypeInternal diameter/mmDesign typeArt. no.
CTUB104-CTB20P20circularB78120033
CTUB104-CTB35P35circularB78120034
CTUB104-CTB60P60circularB78120035

Downloads for ISOSCAN® EDS441

CategoryNameSizeLanguageTimestampD-/B-Number
Certificates TÜV NORD - AGH150x, CTACx, CTBCx, EDS44x, CTUB10x, MRCDB30x und RCMB30x 428.8 KB DE2023/10/11 05:47:1711.10.2023 05:47:17
Certificates TÜV NORD - AGH150x, CTACx, CTBCx, EDS44x, CTUB10x, MRCDB30x and RCMB30x 408.6 KB EN2023/10/11 05:47:2611.10.2023 05:47:26
CE Declarations of Conformity EDS44x 88.3 KB 2022/08/12 06:17:2512.08.2022 06:17:25
Quickstarts EDS440/EDS441 1.2 MB EN2023/11/07 10:35:1207.11.2023 10:35:12D00201
Manuals EDS440/EDS441 20.8 MB EN2023/11/28 06:31:4828.11.2023 06:31:48D00201
Datasheets EDS440/EDS441 9.3 MB EN2023/11/28 06:30:4128.11.2023 06:30:41D00201
Manuals EDS440/EDS441 - Modbus settings 189.8 KB EN2020/01/14 07:37:4814.01.2020 07:37:48D00201
Datasheets EDS441-LNA-KITS Datasheet (US) 5.8 MB EN2020/05/26 17:56:0126.05.2020 17:56:01D00201
Flyers Industrial EDS 1.1 MB EN2021/04/28 13:38:1328.04.2021 13:38:13
Flyers Healthcare EDS 1.7 MB EN2021/04/29 15:23:1529.04.2021 15:23:15