Siemens 7SR12 Argus - Wiring Diagram: 7 SR1102 OC;EF Relay with 3 BI & 5 BO

7SR11 & 7SR12 Installation Guide
Chapter 5 Page 14 of 32 ©2017 Siemens Protection Devices Limited
5.2 Wiring Diagram: 7SR1102 OC/EF Relay with 3BI & 5BO
BO 1
GND.
BI 1
+ve
-ve
+ve
-ve
IL1
22
24
28
2
4
BI 2
+ve
-ve
6
8
BI 3
+ve
-ve
10
12
14
16
18
20
IL2
IL3
IL4
25
26
27
28
BO 2
6
5
4
1
2
3
BO 3
8
7
BO 4
10
9
BO 5
12
11
1A
5A
13
14
15
16
1A
5A
17
18
19
20
1A
5A
21
22
23
24
1A
5A
A
Analogue
B
PSU
1
2
27
28
1
2
27
28
A
B
Shows contacts internal to relay case
assembly.
Contacts close when the relay chassis is
withdrawn from case
NOTES
BI = Binary Input
BO = Binary Output
Rear View
Arrangement of terminals and modules
Data
Comms
(Optional)
A
RS485
Screen
B
Term.
Figure: 5.2-1 7SR1102 Connection Diagram