3RR2 current monitoring relays
4.5 3RR22 current monitoring relays
3UG4 / 3RR2 monitoring relays
Manual, 05/2016, NEB927043002000/RS-AC/004
81
3RR2241-.....
3RR2242-.....
3RR2243-.....
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
2 … 5
Response value residual
current detection at 50/60
Hz typical
A
1.5
4
8
Relative metering precision
with regard to measured
value
%
5
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
0.1 … 3
0.1 … 8
0.2 … 16
Relative switching hysteresis
for measured current value
%
—
Response time maximum
s
0.2
Relative repeat accuracy
%
2
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
