50324 insulation monitoring XML316 Vigilohm - 380..415 V AC 50/60 Hz - failsafe

This device belongs to the Vigilohm range designed to monitor ungrounded/IT electrical networks at feeder level, in accordance to installation and products standards. According to standards, it is recommanded to equip your systems with Insulation Monitoring Devices (IMD). This device a combination of XM300C and XL308/316, it can monitor the overall installation and each 16 feeders, AC, DC and ACDC. This instrument provides overall insulation monitoring of electrical installations by injecting a low-frequency AC voltage between the installation and earth. Settings are available on the front of the device, through the function buttons. Both overall installation and per feeders. Several variables are available: network type, alarm and pre-alarm thresholds and others. Those settings are sealable. It monitors networks up to 760V AC when connected to neutral, 440V AC when connected to line, and 500V DC. With a capacitance reading up to 999microfarad. The black and white screen can displays insulation resistance from 100 ohms to 999 kilohms, capacitance and temporary faults. The device can schedule auto-test, and a button can launch a on demand test. In case the insulation resistance drops below the set threshold, an alarm is triggered thru the XML output relay and channel indicator light. Once no fault is monitored, the alarm is cleared, the alarm relay is back to normal. The device can be supplied by a 380V AC to 415V AC source with a tolérence of plus 10% or minus 15%. This product is installed flush mounted, an enclosure door for example. ingress protection is IP30 when flush mounted. Can be associated with XD301/312 for automatic fault locating, or with XL308/316 to increase the number of monitored feeders. The monitoring device is equipped with a Vigilohm System Bus, to communicate with a supervision, an interface XLI300 is necessary.