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® isoES425
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BENDER DISTRIBUTOR IN TÜRKİYE · ADEO TEKNİK
Bender ISOMETER® isoES425Insulation Monitoring Device (IMD)
Device monitoring insulation and voltage in energy storage systems up to AC/DC 400 V.
TECHNICAL SUMMARY
Features that distinguish this model.
Solar energy and storage
- AC, AC/DC and DC energy storage circuits; up to 400 V.
- Two independent alarm thresholds: 1…990 kΩ.
- Automatic adaptation to leakage capacitances up to 100 µF.
- LC display, two alarm relays; BMS and IsoData via RS-485.
FROM PRODUCT TO TECHNICAL KNOWLEDGE
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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 | Supply voltage U S | Nominal system voltage U n | System leakage capacitance C e | Order code |
|---|---|---|---|---|
| isoES425-D4-4 | AC 100…240 V, 47…63 Hz/DC 24…240 V | AC/DC 0…400 V, 15…460 Hz | < 100 μF | B71037020 |
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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Datasheet
isoES425
isoES425_D00214_D_XXEN.pdfTechnical summary source · pp. 1, 2Open document ↗Operating manualisoES425
isoES425_D00214_M_XXEN.pdfOpen document ↗Conformity documentisoXX425
CEKO_isoXX425.pdfOpen document ↗Conformity documentUKCA - isoxx425
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About manufacturer sources
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ADEO Teknik · Bender's distributor in Türkiye. Current Bender product source ↗
APPLICATIONS
Its role in your application.
Monitors insulation in unearthed energy storage circuits and islanded operation. During grid-connected operation it monitors interruptions of the earth connection; in islanded operation it monitors the IT circuit's insulation.
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