• Save space thanks to compact design
• Cost-effective and easy-to-use by kept simple functionality
• Flexible by extended application range of our insulation monitors for systems up to 500V AC and 1000 Hz, i.e. also application for 400V three-phase systems Monitor DC systems up to 280V without auxiliary voltage
• Improve efficiency: avoid unscheduled downtimes and data losses
• Improve operational reliability and safety: monitor also at standstill, no interruption of operation in the case of single-phase-to-earth fault
• Better fire safety: detect slowly evolving insulation faults, minimize accidental arcs as frequent fire cause, split and separetely monitor systems in fire- and exlosion-prone areas
• Improve workplace safety: no malfunctions of machinery and systems due to earth faults

Earthed (TN) systems

Non-earthed (IT) systems

Differential-current and insulation monitors are used for early detection of insulation faults in applications where unscheduled downtimes of machinery would have serious consequences.

They are used in earthed systems for reasons of efficiency and protection against fire and accidents, but they are required by law in non-earthed systems for the same reasons according to DIN VDE 0100-410 and DIN EN 60204-1. Applications include:

• Wood working industry: fire prevention
• Chemical industry: prevent the interruption of chemical production processes
• Automotive: prevent downtime of entire production lines if one partial area fails
• Food industry: prevent consequential losses, e.g. failure of a cooling plant
• Medical: prevent the failure of live-saving facilities
• Data processing: prevent data loss in computer centers, data processing equipment and systems

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  Insulation monitors for non-earthed systems VARIMETER IMD