User Manual

3UG4621/3UG4622 current monitoring relays
7.7 Technical data
3UG4 / 3RR2 monitoring relays
166 Manual, 02/2013, NEB927043002000/RS-AA/002
General technical details
3UG4621-..A.. 3UG4622-..A.. 3UG4621-..W.. 3UG4622-..W..
Product function Current monitoring relay
Design of the display LCD
Product function
• overcurrent recognition of
1 phase
Yes
• overcurrent recognition of
3 phases
No
• undercurrent recognition of
1 phase
Yes
• undercurrent recognition of
3 phases
No
• overcurrent recognition DC
Yes
• undercurrent recognition
DC
Yes
• current window recognition
DC
Yes
• tension window recognition
of 1 phase
No
• tension window recognition
of 3 phases
No
• reset external
Yes
• self-reset
Yes
• open-circuit or closed-
circuit current principle
Yes
Starting time after the control
supply voltage has been
applied
s
1
Response time maximum ms 450
Relative metering precision % 5
Precision of digital display +/-1 digit
Relative temperature-related
measurement deviation
% 5
Temperature drift per °C %/°C 0.1
Relative repeat accuracy % 1
Type of voltage of supply
voltage
AC/DC