User Manual
3UG458. insulation monitoring relay.
10.3 3UG4581 insulation monitoring relay
3UG4 / 3RR2 monitoring relays
222 Manual, 02/2013, NEB927043002000/RS-AA/002
10.3.7 Technical data
Measuring circuit
3UG4581-1AW30
Type of voltage for monitoring AC
Measurable line frequency Hz 50 … 60
Network leakage resistance µF 10
Adjustable response value impedance
• 1
kΩ
1 … 100
General technical details
3UG4581-1AW30
Product function insulation monitor
Product function isolation control Yes
Product function defect storage Yes
Type of voltage of the controlled supply voltage AC/DC
Operating frequency rated value Hz 15 … 400
Control supply voltage
• for DC rated value
V
24 … 240
• at 50 Hz at AC rated value
V 24 … 240
• at 60 Hz at AC
– rated value
V 24 … 240
Operating range factor control supply voltage rated value
• for DC
0.85 … 1.1
Working range factor supply voltage rated value at 50 Hz
• for AC
0.85 … 1.1
Working range factor supply voltage rated value at 60 Hz
• for AC
0.85 … 1.1
Impulse voltage resistance rated value V
6 000
Thermal current of the contact-affected switching element maximum A 4
Protection class IP IP20










