Technical Data - ABB REU 523 Technical Reference Manual

REU 523
4.2.3.
50
Combined Overvoltage and Undervoltage Relay
Technical Reference Manual

Technical data

Table 4.2.3-1 Dimensions
Width, frame 111.4 mm, box 94 mm
Height, frame 265.9 mm (6U), box 249.8 mm
Depth 235 mm (245.1 mm with a protective rear cover, available as an option)
Enclosure size 1/4 (x 19")
Weight of the relay ~3.2 kg
1)
For dimension drawings, refer to the Installation Manual (1MRS 750526-MUM).
Table 4.2.3-2 Power supply
U rated
aux
U variation
aux
Relay power start-up time, typical
Burden of auxiliary voltage supply under quiescent/
operating condition
Ripple in the dc auxiliary voltage
Interruption time in the auxiliary dc voltage without
resetting the relay
Table 4.2.3-3 Energizing inputs
Rated frequency
Rated voltage, U
n
Maximum input voltage
• continuously
• for 10 s
Power consumption at U
n
Thermal withstand capability
• continuously
• for 10 s
Input impedance
Table 4.2.3-4 Measuring range
Measured voltages on phases U
multiples of the rated voltages of the energizing inputs
±5 Hz) at 0.20...2.00 x U
Measuring accuracy (f
n
Table 4.2.3-5 Binary input
Operating range
Rated voltage
Current drain
Power consumption
1)
U =110/120/220/240 V ac
r
U =48/60/110/125/220 V dc
r
80...265 V ac
38...265 V dc
300 ms
~ 4 W/~10 W
Max 12% of the dc value
< 30 ms at 48 V dc
< 100 ms at 110 V dc
< 500 ms at 220 V dc
50/60 Hz ±5 Hz
100/110/115/120 V
2 x U
3 x U
< 0.1 VA (typical 0.03 VA)
2 x U
3 x U
> 4.7 MΩ
, U and U as 0...2 x U
12 23 31
±1.5%
n
18...265 V dc
24/48/60/110/220 V dc
~ 2...25 mA
< 0.8 W
1MRS 750942-MUM
n
n
n
n
n