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Voltage Detecting Unit (VDU)
Voltage Detecting Units (VDU)
This unit is used for permanent monitoring of all 3-phase line voltage presence in the system.
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VPIS With Relay contact
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.
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With 2 changeover contact
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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