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.
- 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.
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)
| Type | Supply voltage US* | Response value | Art. no. |
|---|---|---|---|
| EDS441-S | AC/DC 24…240 V | 0.2…1 mA | B91080204 |
| EDS441-L-4 | AC/DC 24…240 V | 0.2…1 mA | B91080205 |
| EDS441-LAB-4 | AC/DC 24…240 V | 0.2…1 mA | B91080207 |
*Absolute values
Optional Accessories for ISOSCAN® EDS441
Accessories
| Type | Supply voltage US | Art. no. |
|---|---|---|
| DI-1PSM (RS-485 repeater) | AC/DC 24 V ± 20 % | B95012044 |
| DI-2USB (interface converter RS-485/USB) with USB cable | Supplied by USB interface | B95012045 |
| IOM441-S (Input/Output module) | 12-fold relay module | B95012057 |
Measuring current transformer for EDS441
| Type | Internal diameter/mm | Design type | Art. no. |
|---|---|---|---|
| CTAC20/1 | 20 | circular | B98110006 |
| CTAC35/1 | 35 | circular | B98110008 |
Alternative measuring current transformer from the Bender program
| Type | Internal diameter/mm | Design type | Art. no. |
|---|---|---|---|
| W10/8000 | 10 | circular | B911759 |
| W1-35/8000 | 35 | circular | B911756 |
| W10/8000-6 | 10 | circular, 6-fold | B911900 |
| WS20x30/8000 | 20 x 30 | split-core | B911764 |
| WS50x80/8000 | 50 x 80 | split-core | B911757 |
Measuring current transformer for EDS441-LAB
| Type | Internal diameter/mm | Design type | Art. no. |
|---|---|---|---|
| CTUB104-CTB20P | 20 | circular | B78120033 |
| CTUB104-CTB35P | 35 | circular | B78120034 |
| CTUB104-CTB60P | 60 | circular | B78120035 |
Downloads for ISOSCAN® EDS441
| Name | Category | Size | Language | Timestamp | D-/B-Number |
|---|---|---|---|---|---|
| TÜV NORD - AGH150x, CTACx, CTBCx, EDS44x, CTUB10x, MRCDB30x und RCMB30x | Certificates | 428.8 KB | DE | 2023/10/1111.10.2023 | |
| TÜV NORD - AGH150x, CTACx, CTBCx, EDS44x, CTUB10x, MRCDB30x and RCMB30x | Certificates | 408.6 KB | EN | 2023/10/1111.10.2023 | |
| EDS44x | CE Declarations of Conformity | 88.3 KB | 2022/08/1212.08.2022 | ||
| EDS440/EDS441 | Quickstarts | 872.2 KB | EN | 2024/09/1818.09.2024 | D00201 |
| EDS440/EDS441 | Manuals | 13.2 MB | EN | 2025/03/2020.03.2025 | D00201 |
| EDS440/EDS441 | Datasheets | 8.2 MB | EN | 2025/03/2020.03.2025 | D00201 |
| EDS440/EDS441 - Modbus settings | Manuals | 189.8 KB | EN | 2020/01/1414.01.2020 | D00201 |
| EDS441-LNA-KITS Datasheet (US) | Datasheets | 4.7 MB | EN | 2024/02/2727.02.2024 | D00201 |
| Industrial EDS | Flyers | 1.1 MB | EN | 2021/04/2828.04.2021 | |
| Healthcare EDS | Flyers | 1.7 MB | EN | 2021/04/2929.04.2021 |
