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47842
Manufacturer: DOLD
(22 reviews)
Description:
The 0047842 is a short-time voltage drop relay for Monitoring of voltage systems to detect auto reclosing as e.g. generated by the energy supplier in the case of flash-overs or switching procedures. It is possible that in control circuits some of the devices are resetted during auto reclosing and some not. Because of this uncontrollable situations may occur. By detecting these fast auto reclosings and addition of a certain time delay at reclosing the OFF-time is lengthened and every device has the time to reset. The circuit goes into a defined OFF state and is automatically resetted after the adjusted time delay or by manual reset if the automatic reset is disabled by an external circuit.
Features
Operate delay to generate a defined reset signal
Manual reset possible with external circuit
Single-phase connection possible
De-energized on trip
Green LED indicate for closed contact
Independant of phase sequence
Optionally for 3p3w systems
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