User Manual
3UG4.1 line monitoring relay
6.3 3UG4512 line monitoring relay
3UG4 / 3RR2 monitoring relays
Manual, 02/2013, NEB927043002000/RS-AA/002
103
6.3.5 Technical data
Measuring circuit
3UG4512-.....
Type of voltage for monitoring AC
Number of poles for main current circuit 3
Measurable voltage
• for AC
V
160 … 690
Adjustable voltage range V
— …
General technical details
3UG4512-.....
Product function Phase monitoring relay
Design of the display —
Type of display LED Yes
Product function
• undervoltage recognition
No
• overvoltage recognition
No
• phase sequence recognition
Yes
• phase disturbance recognition
Yes
• asymmetry recognition
No
• overvoltage recognition of 3 phases
No
• undervoltage recognition of 3 phases
No
• tension window recognition of 3 phases
No
• reset external
—
• self-reset
Yes
• open-circuit or closed-circuit current principle
No
Starting time after the control supply voltage has been applied s
1
Response time maximum s 0.45
Temperature drift per °C %/°C —
Relative repeat accuracy % 1










