Terminal Connections - ABB REX 521 Technical Reference Manual, General

REX 521
4.2.6.
38
Protection Relay
Technical Reference Manual, General

Terminal connections

X4.1 X3.1
1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8
9 9
10 10
11
12
13
14
15
16
17
18
Service pin 1
X4.2
X3.2
1
2
3
X3.3
4
5
6
7
8
9
10
11
12
CE
13
14
15
16
17
18
Made in Finland
)LJ  5HDU YLHZ RI WKH 5(;  %DVLF
X1
X4.1 X3.1
1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8
9 9
10 10
11
12
13
14
15
16
17
1
Service pin
18
X4.2
X3.2
1
2
3
X3.3
4
5
6
7
8
9
10
11
12
CE
13
14
15
16
17
18
Made in Finland
)LJ  5HDU YLHZ RI WKH 5(;  0HGLXP
1. Service Pin is mounted if the HW version contains LON
X1
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1

27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
1MRS 751108-MUM