The device HIS 110V DC/N, TU 4220-004-79740390-2009 is designed for continuous automatic control of insulation resistance of positive and negative busbar of 110 V DC networks with isolated neutral (IT-network) relative to busbar PE. Visual control of decrease of insulation resistance below the set value is carried out by means of indicators.
For remote monitoring, it is additionally equipped with a switching dry contact for remote signalling. The device is mounted on a 35 mm DIN-rail by means of a special latch on the rear side of the housing.
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