3UG4.1 line monitoring relay
6.6 3UG4615 / 3UG4616 line monitoring relays
3UG4 / 3RR2 monitoring relays
Manual, 05/2016, NEB927043002000/RS-AC/004
151
Technical data
Measuring circuit
Type of voltage for monitoring
Number of poles for main current circuit
• for AC
V
160 … 690
Adjustable response delay time
with lower or
upper limit violation
s 0.1 … 20
General technical details
Phase monitoring relay
• undervoltage recognition
Yes
• overvoltage recognition
Yes
• phase sequence recognition
Yes
• phase disturbance recognition
Yes
• asymmetry recognition
Yes
• overvoltage recognition of 3 phases
Yes
• undervoltage recognition of 3 phases
Yes
• tension window recognition of 3 phases
Yes
• reset external
—
• self-reset
Yes
• open-circuit or closed-circuit current principle
Yes
after the control supply voltage
has been applied
s 1
Relative adjustment accuracy
Relative metering precision
Precision of digital display
% 1