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® IRDH275BM-7 + AGH675S-7…
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Bender ISOMETER® IRDH275BM-7 + AGH675S-7 seriesInsulation Monitoring Device (IMD)
Insulation monitoring combination for medium-voltage IT systems with AGH675S-7 or AGH675S-7MV15 coupling device.
TECHNICAL SUMMARY
Features that distinguish this model.
Medium voltage and low insulation levels
- Medium-voltage drive applications up to 15.5 kV with the appropriate coupling device.
- Two independent alarm thresholds: 100 kΩ…10 MΩ.
- AMPPlus method and automatic adaptation to system leakage capacitance.
- Isolated RS-485 / BMS, 0(4)…20 mA output and alarm memory with date/time.
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 voltage U n | Supply voltage U S | Cable length | Order code |
|---|---|---|---|---|
| IRDH275BM-7 | -- | AC 19.2…55 V / DC 19.2…72 V | -- | B91065120 |
| AGH675S-7-2000 | AC/DC 0…7.2 kV, 0…460 Hz | -- | 2000 mm | B913061 |
| AGH675S-7-500 | AC/DC 0…7.2 kV, 0…460 Hz | -- | 500 mm | B913060 |
| AGH675S-7MV15-500 | AC/DC 0…15.5 kV, 0…460 Hz | -- | 500 mm | B913058 |
Explore compatible accessories
Compatible accessories · 1
| Model | SKMP *2 | Order code |
|---|---|---|
| 9620-1721 | 2,8 MΩ | B986849 |
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
IRDH275BM-7 with AGH675S-7...
IRDH275BM-7_D00123_D_XXEN.pdfTechnical summary source · pp. 1, 2Open document ↗Operating manualIRDH275BM-7
IRDH275BM-7_D00123_M_XXEN.pdfOpen document ↗Conformity documentAGH
CEKO_AGH.pdfOpen document ↗Conformity documentIRDH275 - 375 - 575
CEKO_IRDH275-375-575.pdfOpen document ↗Conformity documentUKCA - AGH
UKCA_AGH.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 unearthed main circuits containing medium-voltage converters, rectifiers and thyristor-controlled DC drives. Separate prewarning and alarm levels help track insulation deterioration during operation.
IN THE SAME APPLICATION GROUP
