What is insulation monitoring of de-energised circuits?
The guide illustrates this model's “Offline monitoring of standby motors and pumps” function with a product example.
Read the technical guideProduct families / Insulation monitoring · IMD / ISOMETER® IR420-D6
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BENDER DISTRIBUTOR IN TÜRKİYE · ADEO TEKNİK
Bender ISOMETER® IR420-D6Insulation Monitoring Device (IMD)
Offline monitoring device for the insulation resistance of de-energised standby loads in TN, TT and IT systems.
TECHNICAL SUMMARY
Features that distinguish this model.
Monitoring de-energised loads
- Two independent alarm thresholds: 100 kΩ…10 MΩ.
- Two alarm relays, each with a changeover contact, and selectable fault memory.
- Nominal voltage range can be extended using a coupling device.
- LC display, test/reset and maximum system leakage capacitance of 10 µF.
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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 | Supply voltage* U S | Alarm threshold R an | System leakage capacitance C e | Order code** |
|---|---|---|---|---|
| IR420-D6-1 | DC 9,6…94 V / / AC 16…72 V, 42…460 Hz | 100 kΩ…10 MΩ | ≤ 10 µF | B71016415 / B91016415 |
| IR420-D6-2 | DC 70…300 V / / AC 70…300 V, 42…460 Hz | 100 kΩ…10 MΩ | ≤ 10 µF | B71016407 / B91016407 |
Manufacturer table notes (original language):
* Absolute values **(B7… = push-wire terminal / B9… = screw-type terminal)
Explore compatible accessories
Compatible accessories · 1
| Model | Nominal system voltage* U n | Order code |
|---|---|---|
| AGH150W | AC 0…1150 V, DC 0…1100 V | B915576 |
| AGH204S-4 | AC 0…1650 V / AC + DC 0…1300 V | B914013 |
| AGH520S | AC 0…7200 V, 50…400 Hz | B913033 |
| Mounting clip for screw mounting (1 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
IR420-D6
IR420-D6_D00117_D_XXEN.pdfTechnical summary source · pp. 1, 2Open document ↗DatasheetXM420 interface options
XM420-interface-option_D00051_D_XXEN.pdfOpen document ↗Conformity documentIR42x
CEKO_IR42x.pdfOpen document ↗Conformity documentUKCA - IR42x
UKCA_IR42x.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.
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APPLICATIONS
Its role in your application.
Used for standby loads such as fire pumps, emergency drives, valve motors and standby generators. It gives a prewarning when insulation deteriorates and supports preventing a faulty load from starting through a suitable external interlock circuit.
IN THE SAME APPLICATION GROUP
