How does an insulation monitoring device (IMD) work?
Explore insulation resistance measurement, the Riso alarm and the relationship between measurement method and system.
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BENDER DISTRIBUTOR IN TÜRKİYE · ADEO TEKNİK
Bender ISOMETER® isoPV425 + AGH420Insulation Monitoring Device (IMD)
Insulation monitoring in PV systems together with AGH420.
- PV applications up to AC 690 V / DC 1000 V with AGH420.
- Automatic adaptation to system leakage capacitances up to 1000 µF.
- Insulation monitoring in AC and DC IT systems.
A CLOSER LOOK AT THE PRODUCT
Technical specifications and functions.
Insulation monitoring in PV systems together with AGH420. When selecting, consider nominal values, supply options and required system components together.
Bender official product source ↗- PV applications up to AC 690 V / DC 1000 V with AGH420.
- Automatic adaptation to system leakage capacitances up to 1000 µF.
- Insulation monitoring in AC and DC IT systems.
- RMS voltage measurement; undervoltage and overvoltage detection.
FROM PRODUCT TO TECHNICAL KNOWLEDGE
All technical guides ↗Related technical guides
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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3 / 3 options
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Model options and technical values
| Model | Nominal system voltage* U n | Supply voltage* U S | Order code** |
|---|---|---|---|
| isoPV425-D4 with AGH420 | DC 0…1000 V, AC 0…690 V | DC 24…240 V, AC 100…240 V | B71036303 / B91036303 |
Manufacturer table notes (original language):
* Absolute values **(B7… = push-wire terminal / B9… = screw-type terminal)
Explore compatible accessories
Compatible accessories · 1
| Model | Order code |
|---|---|
| Mounting clip for screw mounting (one piece per device) | B98060008 |
| Mounting frame XM420 | B990994 |
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
isoPV425 with AGH420
isoPV425_D00028_D_XXEN.pdfOpen document ↗Operating manualisoPV425 with AGH420
isoPV425_D00028_M_XXEN.pdfOpen document ↗Conformity documentisoXX425
CEKO_isoXX425.pdfOpen document ↗Conformity documentUKCA - AGH
UKCA_AGH.pdfOpen document ↗Conformity documentUKCA - isoxx425
UKCA_isoXX425.pdfOpen document ↗BrochureRenewable energies: Photovoltaics
Photovoltaics_B_en.pdfOpen document ↗No documents match your search. Change the search or document type.
About manufacturer sources
Data sheets and operating manuals open Bender’s official PDFs in a new tab. Documents are in English.
Other languages, accessory documents and current revisions · 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 ↗
Insulation monitoring devices · IMD
