Siemens 3UG4 User Manual

3UG4.1 line monitoring relay
6.5 3UG4614 line monitoring relay
3UG4 / 3RR2 monitoring relays
132 Manual, 05/2016, NEB927043002000/RS-AC/004
6.5.2
Functions
General functionality
The 3UG4614 line monitoring relays monitor a three-phase system for
phase asymmetry
,
undervoltage
,
phase failure
, and
phase sequence
.
The devices feature a wide-range voltage input and are
self-powered
(measuring voltage
= rated control supply voltage). The 3UG4614 line monitoring relays monitor all phases of
three-phase AC networks from 160 to 690 V through terminals L1 / L2 / L3 and also draw
power from all three phases simultaneously.
The 3UG4614 line monitoring relays feature 2 output relays (output relay K1 and output relay
K2). The relays work synchronously.
You will find the setting ranges and factory settings of the available parameters in Chapter
"Operation (Page 135)."
You will find a description of the individual parameters in Chapter "Parameters (Page 363)."
Note
The specified voltages represent the absolute thresholds.

Siemens 3UG4 Specifications

General

Type of voltage	AC/DC
Number of CO contacts for auxiliary contacts	1
Number of NC contacts delayed	0
Number of NO contacts delayed	0
Number of change-over switches delayed	0
Number of NC contacts undelayed	0
Number of NO contacts undelayed	0
Number of change-over switches undelayed	1
Width	22.5 mm
Housing Width	22.5 mm
Operating Temperature	-25 ... 60 °C
Protection Class	IP20
Design of the product	Monitoring relay
Type	Monitoring relay
Operating frequency rated value	50 ... 60 Hz
Rated Operational Current	0.1 ... 10 A
Adjustable response value current	0.1 ... 10 A
Contact Configuration	1 CO contact
Operating range factor control supply voltage rated value at AC	0.8-1.1 x Un
Operating range factor control supply voltage rated value at DC	0.8-1.1 x Un