What is insulation monitoring of de-energised circuits?
The guide illustrates this model's “Offline monitoring and recorded Riso trend” function with a product example.
Read the technical guideProduct families / Insulation monitoring · IMD / ISOMETER® isoNAV685-D-B
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BENDER DISTRIBUTOR IN TÜRKİYE · ADEO TEKNİK
Bender ISOMETER® isoNAV685-D-BInsulation Monitoring Device (IMD)
Offline monitoring device checking insulation in de-energised TN, TT and IT systems.
TECHNICAL SUMMARY
Features that distinguish this model.
Monitoring de-energised loads
- Adjustable alarm threshold 10 kΩ…1 MΩ; factory setting 50 kΩ.
- AMPPlus measurement method and automatic adaptation to system leakage capacitance.
- Graphic LC display, isoGraph and 1023 alarm records with date/time.
- Earth connection monitoring, automatic self-test, BCOM and Modbus TCP.
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ADEO Teknik · Bender distributor in Türkiye
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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 |
|---|---|---|---|
| isoNAV685-D-B | offline | AC 24…240 V; 50…400 Hz / / DC 24…240 V | B91067024 |
Explore compatible accessories
Compatible accessories · 1
| 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 Possible measuring instruments on request!
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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Datasheet
isoNAV685-D-B
isoNAV685-D-B_D00264_D_XXEN.pdfTechnical summary source · pp. 1, 2Open document ↗Operating manualisoNAV685-D-B
isoNAV685-D-B_D00264_M_XXEN.pdfOpen document ↗Conformity documentiso685
CEKO_iso685.pdfOpen document ↗Conformity documentUKCA - iso685
UKCA_iso685.pdfOpen document ↗BrochureInsulation monitoring in earthed wind powered energy plants with the isoNAV685-D-B
Application_Insulation-monitoring-WEA_en.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.
Checks insulation before starting loads that remain idle for long periods or operate intermittently. It measures the L1, L2 and L3 connection paths in sequence to help identify the path with an insulation problem.
IN THE SAME APPLICATION GROUP
