Schneider Electric IMDIM400LTHR IMDIM400LTHR Monitoring relay

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. Sie ist nur für den Betrieb am Aussenberechtigten Ihrem Systemen mit Isolation Monitoring Device (IMD) ommitzugelassen. According to the standards, it is recommended to equip your systems with insulation monitoring devices (IMD). It measures the insulation resistance of the system by feeding a DC current between the network and the ground. The configuration is defined according to the installation. The settings are available on the front of the device via the HMI screen. The settings apply to alarm and pre-alarm thresholds, alarm delay from 0 to 7200 seconds, and others are available. It monitors networks up to 33 kV, depending on the voltage converter used. The black-and-white monitor can display insulation resistances from 10 ohms to 10 megaohms and temporary errors. Autotest starts automatically every 5 hours and if necessary. If the insulation resistance of the system falls below the set threshold, WAS means that a ground fault has occurred, an alarm is triggered via the IMD output relay. As soon as no more faults are detected, the alarm is cleared and the alarm relay returns to its normal state. Das Gerät darf ausschließlich über ein 15 VDC zum mit einem tollene von plus oder minus die anzuschließen. This product is flush-mounted, for example, on a housing door. The protection class of the front side is IP5, the rear side IP20 and the over-voltage 300 V category III. The monitoring device is equipped with an RS485 communication port and Modbus protocol.

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