IMD100
The IMD100 is an insulation monitoring device (IMD) designed to continuously monitor insulation resistance in unearthed (IT) electrical systems, particularly within DC applications such as electric vehicle (EV) fast charging infrastructure using CCS and CHAdeMO standards. By providing early detection of insulation deterioration and earth faults, the IMD100 enables proactive maintenance, reduces unplanned downtime, and enhances system safety. Compliant with IEC 61557-8 and suitable for use in high-voltage DC systems up to 1000V, it plays a critical role in ensuring reliable operation and protection of both equipment and personnel.
- Insulation monitoring according to IEC 61557-8 and
- Selectable charging modes – CCS or CHAdeMO
- Compliant with UL 2231-1 and UL 2231-2
- Suitable for network voltages up to 1000VDC
- Maximum system leakage capacitance – 25µF
- Pre-set measurement levels – Fault 100kΩ, Warning 500kΩ
- Isolated MODBUS RTU connection
- UL certified
Technical Resources
Datasheets, certifications and integration files.
Application Notes
Practical guidance on applying insulation monitoring in EV charging and DC systems, including compliance, system design and fault detection.
📄 Reducing Charger Downtime
How continuous insulation monitoring helps prevent unnecessary outages and supports predictive maintenance.
📄 Compliance Is Not Optional
Understanding UL 2231 and IEC 61557-8 requirements for safe EV charging systems.
📄 IMDs vs Earth Fault
Key differences between insulation monitoring and earth fault detection.
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