Wiring Diagram: 7Sr1208 Directional Oc/Ef Relay With 4Bi & 8Bo - Siemens 7SR12 Argus Manual

7SR11 & 7SR12 Installation Guide
5.8 Wiring Diagram: 7SR1208 Directional OC/EF Relay with
4BI & 8BO
+ve
2
-ve
4
+ve
6
-ve
8
+ve
10
-ve
12
14 A
16 Screen
18 B
20 Term.
+ve
22
-ve
24
28
GND.
1A
13
14
5A
15
16
1A
17
18
5A
19
20
1A
21
22
5A
23
24
1A
25
26
5A
27
28
Chapter 5 Page 20 of 32
BI 4
BI 1
BI 2
BO 6
BI 3
BO 7
BO 8
V1
V2
V3
B
BO 1
IL1
BO 2
IL2
BO 3
IL3
BO 4
BO 5
IL4
A
Figure: 5.8-1 7SR1208 Connection Diagram
+ve
3
-ve
1
5
7
9
11
13
15
Data
Comms
(Optional)
17
19
21
23
Arrangement of terminals and modules
25
NOTES
27
BI = Binary Input
3
BO = Binary Output
1
2
Shows contacts internal to relay case
4
assembly.
6
Contacts close when the relay chassis is
5
withdrawn from case
8
7
10
9
12
11
©2017 Siemens Protection Devices Limited
1 2 1 2
B A
PSU Analogue
27 28 27 28
Rear View