ABB REU 523 Technical Reference Manual page 51

1MRS 750942-MUM
Combined Overvoltage and Undervoltage Relay
Technical Reference Manual
Table 4.2.3-6 Signal outputs (SO1, SO2) and self-supervision (IRF) output
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
Table 4.2.3-7 Power outputs (PO1, PO2)
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
Table 4.2.3-8 Enclosure class
Front side
Rear side, connection terminals
Note!
A rear protective cover (accessory part) can be used to protect and shield the rear of the
case.
Table 4.2.3-9 Environmental tests
Specified service temperature range
Transport and storage temperature range
Dry heat test
Dry cold test
Damp heat test, cyclic
Table 4.2.3-10 Electromagnetic compatibility tests
EMC immunity test level requirements consider the demands in the generic standard
EN 50082-2.
1 MHz burst disturbance test, class III
• Common mode
• Differential mode
Electrostatic discharge test, class III
• For contact discharge
• For air discharge
REU 523
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
250 V ac/dc
5 A
15 A
30 A
5 A/3 A/1 A
100 mA at 24 V ac/dc
IP 54 (flush-mounted)
IP20
-10...+55 °C
-40...+70 °C according to the IEC
60068-2-48
According to the IEC 60068-2-2
According to the IEC 60068-2-1
According to the IEC 60068-2-30
According to the IEC 60255-22-1
2.5 kV
1.0 kV
According to the IEC 61000-4-2
and IEC 60255-22-2
6 kV
8 kV
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