How does an insulation monitoring device (IMD) work?
Explore insulation resistance measurement, the Riso alarm and the relationship between measurement method and system.
Read the technical guideProduct families / Insulation monitoring · IMD / ISOMETER® isoRW685W-D-B
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BENDER DISTRIBUTOR IN TÜRKİYE · ADEO TEKNİK
Bender ISOMETER® isoRW685W-D-BInsulation Monitoring Device (IMD)
Railway insulation monitoring device with coordination functions for interconnected IT circuits.
TECHNICAL SUMMARY
Features that distinguish this model.
Railway applications
- Two independently adjustable alarm thresholds: 1 kΩ…10 MΩ.
- Internal disconnection of the monitoring device from the IT circuit using ISOnet.
- Priority control with ISOnet priority; support for ring-coupled systems with ISOloop.
- BCOM, Modbus TCP, web server, Modbus RTU and isoGraph.
FROM PRODUCT TO TECHNICAL KNOWLEDGE
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Explore the product's function and its system's operating principle through technical explanations.
What is an insulation monitoring device (IMD)?
Progress from system type, voltage, leakage capacitance and application conditions to selecting a suitable IMD.
Read the technical guideSystem leakage capacitance and measuring methods in IMD selection
Learn how leakage capacitance and power electronics affect measurement methods and device selection.
Read the technical guideADEO Teknik · Bender distributor in Türkiye
Ask ADEO Teknik Technical product information and supply support for model selection, compatible components and current manufacturer documentation.
MODEL, ORDER AND ACCESSORY INFORMATION
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Model options and technical values
| Model | Nominal system voltage range U n | Supply voltage U S | Order code |
|---|---|---|---|
| isoRW685W-D-B | AC 0…690 V; 0,1…460 Hz / DC 0…1000 V | AC 24…240 V; 50…400 Hz / / DC 24…240 V | B91067022W |
Explore compatible accessories
Compatible accessories · 1
| Model description | Model | Order code |
|---|---|---|
| Coupling devices | AGH150W-4 / AGH204S-4 / AGH520S / AGH676S-4 | B98018006 / B914013 / B913033 / B913055 |
Manufacturer table notes (original language):
Suitable measuring instruments on request!
Compatible accessories · 2
| Model description | Order code |
|---|---|
| A set of screw terminals* | B91067901 |
| A set of push-wire terminals | B91067902 |
| Enclosure accessories (terminal cover, 2 mounting clips)* | B91067903 |
Manufacturer table notes (original language):
* included in the scope of delivery
Based on tables on the manufacturer's current product page. For marked-value footnotes, connection conditions and variant suitability, review Bender product source ↗ and the technical documents together. Listing an order code does not commit to stock availability or delivery time.
BENDER MANUFACTURER DOCUMENTS
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6 / 6 documents
Datasheet
isoRW685W-D-B
isoRW685W-D-B_D00419_D_XXEN.pdfTechnical summary source · pp. 1, 2Open document ↗Operating manualisoRW685W-D-B
isoRW685W-D-B_D00419_M_XXEN.pdfOpen document ↗Conformity documentisoRW685
CEKO_isoRW685.pdfOpen document ↗Conformity documentUKCA - isoRW685
UKCA_isoRW685.pdfOpen document ↗Brochureiso685
iso685_B_en.pdfOpen document ↗Other technical documentsTÜV NORD - isox685x and FP200x
Z_1436.GR.20210421.112252_Bender_Messrelais_en.pdfOpen document ↗No documents match your search. Change the search or document type.
About manufacturer sources
This summary is based on product descriptions and features on the specified pages of the documents above. Consult the manufacturer document for complete technical values, connection information and ordering options.
Current product and variant information · Bender ↗
Data sheets, operating manuals and related manufacturer documents. File names identify the model or accessory; documents retain their original language.
ADEO Teknik · Bender's distributor in Türkiye. Current Bender product source ↗
APPLICATIONS
Its role in your application.
Used in rolling-stock systems where multiple IT sections are interconnected according to operating conditions. In addition to insulation measurement, functions coordinate the connected monitoring devices' relationship with the circuit.
IN THE SAME APPLICATION GROUP
