
3RR2 current monitoring relays
4.4 3RR21 current monitoring relays
3UG4 / 3RR2 monitoring relays
62
Manual, 05/2016, NEB927043002000/RS-AC/004
3RR2141-.....
3RR2142-.....
3RR2143-.....
Adjustable response current
•
1
A
1.6 … 16
4 … 40
8 … 80
•
2
A
1.6 … 16
4 … 40
8 … 80
Factor as multiple of the
current monitoring upper limit
•
for the adjustable value of
a blocking current
—
—
Response value residual
current detection at 50/60 Hz
typical
A
—
Type of current for monitoring
AC
Measurable current
•
for AC
A
1.6 … 16
4 … 40
8 … 80
Adjustable switching hysteresis
for measured current value
A
—
—
Relative switching hysteresis for
measured current value
%
6.25
Response time maximum
s
0.3
Relative repeat accuracy
%
2
Relative metering precision with
regard to measuring range
limit
%
10
Temperature drift per °C
%/°C 0.1
Current-carrying capacity
•
for permanent overcurrent
maximum permissible
A
16
40
80
1)
•
for overcurrent duration
< 1
s maximum permissible
A
320
800
1 600
1)
Class 10 = 80 A
Class 20 = 60 A
Class 30 = 50 A