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 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 50 insulation fault locators can be connected via an RS-485 interface (BS bus protocol) and thereby up to 600 outgoing circuits can be monitored.

Questions? Contact us!

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 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 50 insulation fault locators can be connected via an RS-485 interface (BS bus protocol) and thereby up to 600 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-S-1AC/DC 24…240 V0,2…1 mA----B91080204
EDS441W-S-1AC/DC 24…240 V0,2…1 mA--B91080204W
EDS441-L-4AC/DC 24…240 V0,2…1 mA--B91080205
EDS441W-L-4AC/DC 24…240 V0,2…1 mAB91080205W
EDS441-LAB-4AC/DC 24…240 V0,2…1 mA--B91080207
EDS441W-LAB-4AC/DC 24…240 V0,2…1 mAB91080207W

*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.
CTAS50/0150split-coreB98110012
CTAS80/0180split-coreB98110013
CTAS120/01120split-coreB98110014
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.
CTUB102-CTB20P20circularB78120021
CTUB102-CTB35P35circularB78120023
CTUB102-CTB60P60circularB78120025

Downloads for ISOSCAN® EDS441

NameCategorySizeLanguageTimestampD-/B-Number
EDS44x CE Declarations of conformity 88.3 KB 2022/08/1212.08.2022
TÜV NORD - AGH150x, CTACx, CTBCx, EDS44x, CTUB10x, MRCDB30x und RCMB30x Certificates 428.8 KB DE2023/10/1111.10.2023
TÜV NORD - AGH150x, CTACx, CTBCx, EDS44x, CTUB10x, MRCDB30x and RCMB30x Certificates 408.6 KB EN2023/10/1111.10.2023
EDS440/EDS441 Quickstarts 872.2 KB DE2024/09/1818.09.2024D00201
EDS440/EDS441 Quickstarts 872.2 KB EN2024/09/1818.09.2024D00201
EDS440/EDS441 Quickstarts 872.2 KB FR2024/09/1818.09.2024D00201
EDS440/EDS441 Quickstarts 872.2 KB ES2024/09/1818.09.2024D00201
EDS440/EDS441 Manuals 13.2 MB DE2024/09/0505.09.2024D00201
EDS440/EDS441 Manuals 13.1 MB EN2024/09/0505.09.2024D00201
EDS440/EDS441 Manuals 41.9 MB ZH2019/05/1313.05.2019D00201
EDS440/EDS441 Datasheets 8.2 MB DE2024/09/1818.09.2024D00201
EDS440/EDS441 Datasheets 8.2 MB EN2024/09/1818.09.2024D00201
EDS440/EDS441 Datasheets 2.4 MB ES2019/05/1313.05.2019D00201
EDS440/EDS441 Datasheets 15.2 MB ZH2019/05/1313.05.2019D00201
EDS440/EDS441 Quickstarts 1.3 MB ZH2024/09/1818.09.2024D00201
Selectief aardfout zoeksysteem EDS Application brochures 933.7 KB NL2019/05/1313.05.2019
EDS44x change of frontplate for new addressing concept Product Change Notification 135.8 KB EN2019/05/1313.05.2019D00201
EDS440/EDS441 - Modbus-Einstellungen Manuals 186.8 KB DE2020/01/1414.01.2020D00201
EDS440/EDS441 - Modbus settings Manuals 189.8 KB EN2020/01/1414.01.2020D00201
EDS441-LNA-KITS Datasheet (US) Datasheets 4.7 MB EN2024/02/2727.02.2024D00201
Industrial EDS Flyer 1.1 MB EN2021/04/2828.04.2021
Healthcare EDS Flyer 1.7 MB EN2021/04/2929.04.2021