User Manual

3UG4 / 3RR2 monitoring relays
Manual, 02/2013, NEB927043002000/RS-AA/002
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Introduction
1
Purpose of the manual
This manual describes the 3UG4 monitoring relays for stand-alone assembly and the 3RR2
current monitoring relays for mounting on 3RT2 contactors
The manual provides overview information for integrating the monitoring relays into the
system environment, and it describes the hardware and software components of the devices.
The information in this manual enables you to commission the monitoring relays.
Required basic knowledge
To understand these operating instructions you should have a general knowledge of
automation engineering and low-voltage switchgear.
Scope of the manual
The manual is valid for these monitoring relays. It contains a description of the devices that
is valid at the time of publication.
Further documentation
To install and connect the monitoring relays, you require the operating instructions of the
monitoring relays used.
The Appendix "References (Page 349)" has a list of the operating instructions.
Recycling and disposal
These devices can be recycled thanks to their low pollutant content. For environmentally-
friendly recycling and disposal of your electronic waste, please contact a company certified
for the disposal of electronic waste.