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 guideIndustries / Insulation monitoring · IMD / ISOMETER® iso685-…-B
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Bender ISOMETER® iso685- series-BInsulation Monitoring Device (IMD)
iso685 variant for insulation monitoring in interconnected IT systems.
TECHNICAL SPECIFICATIONS
Understand the application scope.
The exact model, accessories and operating conditions are selected according to the relevant manufacturer document.
- ISOnet, ISOnet priority and ISOloop functions.
- Two adjustable alarm thresholds in the 1 kΩ…10 MΩ range.
- Web server, BCOM and Modbus communication.
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 | Display | W option | Order code |
|---|---|---|---|---|---|
| iso685-D-B | AC 0…690 V; 1…460 Hz / / DC 0…1000 V | AC 24…240 V; 50…400 Hz / / DC 24…240 V | internal | – | B91067020 |
| iso685W-D-B | AC 0…690 V; 1…460 Hz / / DC 0…1000 V | AC 24…240 V; 50…400 Hz / / DC 24…240 V | internal | -40…+70°C, / 3K23, 3M12 | B91067020W |
| iso685-S-B + FP200 | AC 0…690 V; 1…460 Hz / / DC 0…1000 V | AC 24…240 V; 50…400 Hz / / DC 24…240 V | external | – | B91067220 |
| iso685W-S-B + FP200 | AC 0…690 V; 1…460 Hz / / DC 0…1000 V | AC 24…240 V; 50…400 Hz / / DC 24…240 V | external | -40…+70°C, / 3K23, 3M12 | B91067220W |
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):
Possible 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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12 / 12 documents
Datasheet
iso685-x-B
iso685-x-B_D00177_D_XXEN.pdfOpen document ↗DatasheetFP200
FP200_D00169_D_XXEN.pdfOpen document ↗Operating manualiso685-x-B
iso685-x-B_D00177_M_XXEN.pdfOpen document ↗Operating manualiso685-… Modbus settings
iso685_D00022_A_XXEN.pdfOpen document ↗Operating manualiso685-… web server
iso685_D00177_A_XXEN.pdfOpen document ↗Quick startFP200
FP200_D00169_Q_INTE.pdfOpen document ↗Quick startiso685-…
iso685-x_D00022_Q_INTE.pdfOpen document ↗Conformity documentFP200
CEKO_FP200.pdfOpen document ↗Conformity documentiso685
CEKO_iso685.pdfOpen document ↗Conformity documentUKCA - iso685
UKCA_iso685.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
Current variants and other documents · 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 ↗