Schneider Electric IMDIFL12H IMDIFL12H Monitoring relay No. of relay outputs: 1

This device belongs to the Vigilohm series, which was developed for the monitoring of ungrounded power supplies (IT systems) according to the installation and product standards. This isolation troubleshooting is only possible if it is connected to the IM400 20-H. This device is designed for monitoring 12 AC, DC and ACDC power supplies up to 1000V with the IFL12VA1T voltage adapter. It measures the insulation resistance and the leakage capacity per outlet. The configuration is set from the front of the device, via the HMI screen or via the communication interface. The most important settings are for alarm thresholds, channel designation, toroidal type (Vigilohm type or other compatible types), and filtering time. It indicates an insulation resistance of 100 ohms to 250 kiloohms per outlet and a leakage capacity of 1 to 15 microfarad. Autotest starts automatically every 5 hours and if necessary. If the insulation resistance falls below the set threshold, an alarm is triggered via the IFL output relay, the HMI and the communication interface. As soon as no more faults are detected, the alarm is cleared and the alarm relay returns to its normal state. The device can be supplied from a 110VAC to 440VAC source or from a 110VDC to 440VDC source, all with a tolerance of plus or minus 15%.

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