Siemens siprotec 7SA522 User Manual

Hardware and Connections
2-117SA522 Manual
C53000-G1176-C119-2
inside the 7SA522. Each common group can, for example, be used for signal multipli-
cation or as a common point for a signal (independent of the signals on the pin “a” ter-
minals). Depending on the version of the terminal block, 18 or 12 common connec-
tions are available.
Grouping of common connections within a terminal block is as follows:
12 terminal block: Group 1 Terminals 1 through 6
Group 2 Terminals 7 through 12
18 terminal block: Group 1 Terminals 1 through 9
Group 2 Terminals 10 through 18
All shielding pins are connected together as shown in Figure 2-12. The shielding pins
are also connected to the housing. Depending on the version of the terminal block, 18
or 12 shielding connections are provided.
Figure 2-12 Schematic diagram of the plug-in terminal blocks
Connections to
Plug-In Terminals
Connections to plug-in terminals are made with pin connectors.
There are two versions of pin connectors:
Version 1: 2-pin connector
Version 2: 3-pin connector
Signal connection
Common connection
Shielding connection
Common connections, group 1
looped together
Common connections, group 2
looped together
Shielding connections
looped together
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abc
abc
abc
abc
abc
abc
cba
cba
cba
cba
cba
2
3
4
5
6
7
8
9
10
11
12
1
cba
abc
abc
abc
abc
abc
abc
cba
cba
cba
cba
cba
2
3
4
5
6
7
8
9
10
11
12
1
abc
abc
abc
cba
cba
cba
13
14
15
16
17
18
12 terminal 18 terminal

Siemens siprotec 7SA522 Specifications

General

Brand	Siemens
Model	siprotec 7SA522
Category	Protection Device
Language	English