ABB REX 521 Technical Reference Manual, General

54
1MRS 751108-MUM
Protection Relay
Technical Reference Manual, General
REX 521
Fig. 4.2.6.-3 Rear view of REX 521 High
1
Fig. 4.2.6.-4 Rear view of REX 521 Sensor
1
1. Service Pin is mounted if the HW version contains LON.
RearViewMedium
1
2
3
4
5
6
7
8
9
10
11
12
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17
18
X4.2
X4.1
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2
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5
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7
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10
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18
X1
27
26
25
24
23
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2
1
RearViewHigh_a
1
Service pin
X3.1
1
2
3
4
5
6
7
8
9
10
CE
Made in Finland
X3.2
Tx
X3.3
Rx
Data A
Data B
RS-485
RearViewMedium
1
2
3
4
5
6
7
8
9
10
11
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13
14
15
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18
X4.2
X4.1
1
2
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4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
RearViewSensor_a
1
X2.1
1
2
X2.2
1
2
X2.3
1
2
X2.4
1
2
X2.5
1
2
X2.6
1
2
Service pin
X1
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
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5
4
3
2
1
X3.1
1
2
3
4
5
6
7
8
9
10
X3.2
Tx
X3.3
Rx
CE
Made in Finland
Data A
Data B
RS-485

ABB REX 521 Specifications

General

Brand	ABB
Model	REX 521
Category	Other
Language	English