Siemens 3UG4 - Technical Data

3UG4625 residual current monitoring relay with 3UL23 transformer
8.7 Technical data
3UG4 / 3RR2 monitoring relays
208 Manual, 05/2016, NEB927043002000/RS-AC/004
8.7
Technical data
Measuring circuit
3UG4625-.....
Type of current for monitoring
AC
Measurable line frequency
Hz
16
400
Adjustable response current
• 1
A
0.03 … 40
• 2
A
0.03 … 40
Adjustable response delay time when starting
s
0.1 … 20
Adjustable response delay time
s
0.1 … 20
Switching hysteresis
%
0 … 50
Stored energy time at mains power cut minimum
ms
10
Operating voltage
• rated value
V
24 … 240
General technical details
3UG4625-.....
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
ms 1 600
Response time maximum
ms
150
Relative metering precision
% 5
Precision of digital display
+/-1 digit
Temperature drift per °C
%/°C
0.1
Relative repeat accuracy
%
1