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Voltage Detecting Unit VDU
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Voltage Detecting Unit This unit is used for permanent monitoring of all 3-phase line voltage presence in the system.
Read MoreVPIS With Relay contact
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Voltage Detecting Unit VPIS with Relay is a device which is used to detect that the phase voltage has dropped to a level, safe enough to work with.
Read MoreWith 2 changeover contact
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Voltage Detecting Unit This type of device has 2 relay changeover contacts. This feature is used to operate the system remotely.
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