Technical Data - ABB REU 523 Technical Reference Manual

1MRS 750942-MUM
4.2.3.
ABB Automation
Combined Overvoltage and Undervoltage Relay
Technical Reference Manual
The optical PC-connection on the relay front panel is used to connect the relay to a
fibre-optic SPA bus via an opto-cable 1MKC950001-1.
Table 4.2.2-1 SPA logic/ RS-485 connection for RER 103
Terminal Function
X.2.2-1 Data A (data signal +)
X.2.2-2 Data B (data signal -)
X.2.2-3 RTS A (request to send +)
X.2.2-4 RTS B (request to send -)
X.2.2-5 COL A (2.8 V on relay)
X.2.2-6 COL B (2.2 V on relay)
X.2.2-7 GND
X.2.2-8 NC
X.2.2-9 +5 Vdc, supply voltage (max. 200 mA)

Technical data

Table 4.2.3-1 Dimensions
Width 111.4 mm
Height, frame 265.9 mm (6U), box 255.8 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
Table 4.2.3-2 Power supply
U =110/120/220/240 V ac
r
U =48/60/110/125/220 V dc
r
Operating range
Relay power start-up time, typical
Burden of auxiliary supply under quiescent/operating
condition
Ripple in dc auxiliary voltage
Interruption time in auxiliary dc voltage without resetting < 30 ms at 48 V dc
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
80...265 V ac
38...265 V dc
300 ms
~ 4 W/~10 W
Max 12 % of the dc value
< 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
n
3 x U
n
< 0.1 VA (typical 0.03 VA)
REU 523
47