Technical Data - ABB REU 523 Manual

Technical data

Combined overvoltage and undervoltage
relay
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Rated frequency
Rated voltage U
n
Maximum input voltage
- continuously
- for 10 s
Power consumption at U
n
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Measured voltages on phases U
multiples of the rated voltages of the energizing
inputs
Measuring accuracy (f n ±5 Hz) at 0.20...2.00 x U n
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Operating range
Rated voltage
Current drain
Power consumption
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Rated voltage
Continuous carry
Make and carry for 3.0 s
Make and carry for 0.5 s
Breaking capacity when the control circuit time-
constant L/R < 40 ms, at 48/110/220 V dc
Minimum contact load
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Rated voltage
Continuous carry
Make and carry for 3.0 s
Make and carry for 0.5 s
Breaking capacity when the control circuit time-
constant L/R < 40 ms, at 48/110/220 V dc
Minimum contact load
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Rear interface, connector X2.2
Front panel, optical RS-232 connection for fibre-
optic cable 1MKC 950001-1
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Rated voltage
Operating range
Relay power start-up time, typical
Burden of auxiliary supply under
quiescent/operating condition
Ripple in the dc auxiliary voltage
50/60 Hz ±5 Hz
100/110/115/120 V
2 x U
n
3 x U
n
< 0.1 VA (typical 0.03 VA)
, U and U as 0...2 x U
12 23 31
±1.5%
18...265 V dc
U = 24/48/60/110/220 V dc
r
~ 2...25 mA
< 0.8 W
250 V ac/dc
5 A
15 A
30 A
5 A/3 A/1 A
100 mA at 24 V ac/dc
250 V ac/dc
5 A
8 A
10 A
1 A/0.25 A/0.15 A
100 mA at 24 V ac/dc
RS-485 connection for the fibre-optic interface
module RER 103
SPA bus or IEC 60870-5-103 protocol
4.8 or 9.6 kbps
SPA bus protocol
4.8 or 9.6 kbps
Ur =110/120/220/240 V ac
Ur =48/60/110/125/220 V dc
80...265 V ac
38...265 V dc
300 ms
~ 4 W/~ 10 W
Max 12% of the dc value
1MRS 751123-MBG
n
REU 523
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