
3UG458. insulation monitoring relay
9.2 Performance features of the insulation monitoring relays
3UG4 / 3RR2 monitoring relays
216
Manual, 05/2016, NEB927043002000/RS-AC/004
9.2
Performance features of the insulation monitoring relays
General data
Table 9- 3
General data of the 3UG4581/3UG4582/3UG4583 insulation monitoring relays
General data
Insulation monitoring relays
3UG4581
3UG4582
3UG4583
Setting range of the target pick-up values
•
1 to 100
kΩ
✓
✓
✓
•
2 to 200
kΩ
—
—
✓
Rated voltage of the system to be monitored
•
0 ... 250 V AC
—
✓
—
•
0 ... 400 V AC
✓
—
✓
•
0 ... 600 V AC
—
—
✓
1)
•
0 to 300 V DC
—
✓
—
•
0 to 600 V DC
—
—
✓
•
0 to 1000 V DC
—
—
✓
1)
Maximum discharge capacity of the system
•
10
μF
✓
✓
—
•
20
μF
—
—
✓
Output contacts
•
1 changeover contact
✓
✓
—
•
2 changeover contacts or
1 changeover contact
+ 1 changeover contact,
adjustable
—
—
✓
Number of thresholds
•
1
✓
✓
—
•
1 or 2, adjustable
—
—
✓
Functional principle
Closed-circuit principle
Closed-circuit principle
Open-circuit principle or closed-
circuit principle, configurable