Schneider Electric IMDIM15H IMDIM15H Isolation monitor

This device is part of the Vigilohm series, which is designed to monitor ungrounded/IT networks in accordance with installation and product standards. According to IEC standards, the equipment of medical IT rooms with insulation monitoring equipment (IMD) is required. This equipment is intended for monitoring medical IT AC, DC and ACDC systems. It measures the insulation resistance of the system by feeding a low-frequency alternating current between the mains and the earth. The configuration is performed in accordance with the medical standards from the front of the device via the HMI screen. Settings refer to insulation alarm thresholds from 50 kiloohms to 500 kiloohms and transformer overheating and overload alarms. It monitors networks up to 230VAC, 230VDC, in medical IT architecture, as well as the medical IT transformer. The black and white display can indicate an insulation resistance from 100 ohms to 10 megohm. The auto test starts automatically every 5 hours and if necessary. If the insulation resistance of the system falls below the set threshold, i.e. if there is a ground fault, an alarm is triggered via the IMD output relay within 4 seconds. As soon as no more faults are monitored, the alarm is cleared and the alarm relay is normal again. The device can be supplied from a 110VAC to 230VAC source or a 125VDC to 250VDC source, all with a tolerance of plus or minus 15%. This product can be installed on a DIN rail or flush. The front side has protection class IP52, the back side IP20 and overvoltage category III. The monitoring device is equipped with an RS485 communication port, Modbus protocol.

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