User Manual

3UG4624 residual current monitoring relay
8.7 Technical data
3UG4 / 3RR2 monitoring relays
Manual, 02/2013, NEB927043002000/RS-AA/002
183
8.7 Technical data
Measuring circuit
3UG4624-.....
Type of current for monitoring AC
Measurable line frequency Hz 60 … 50
Adjustable response current
• 1
A
0.03 … 40
• 2
A 0.03 … 40
Adjustable response delay time
• when starting
s
0.1 … 20
• with lower or upper limit violation
s 0.1 … 20
Adjustable switching hysteresis for measured current value mA
15 … 2
Stored energy time at mains power cut minimum ms 10
Operating voltage
• rated value
V
17 … 400
General technical details
3UG4624-.....
Product function for three-phase supplies
Design of the display LCD
Product function
• difference current indication
Yes
• defect storage
Yes
• overcurrent recognition of 1 phase
Yes
• undercurrent recognition of 1 phase
No
• reset external
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 300
Relative metering precision % 5
Precision of digital display +/-1 digit
Temperature drift per °C %/°C 0.1
Relative repeat accuracy % 1