Screw Terminal Connections - Siemens siprotec 7SA522 User Manual

Hardware and Connections
2.1.2

Screw terminal connections

Terminal Blocks for
Voltage
Connections
Terminal Block for
Current
Connections
2-6
The following must be distinguished in the case of connection via screw terminals:
terminal plugs for voltage connections and
terminal plugs for current connections.
The terminal screws have a slot head for tightening or loosening with a flat screw driv-
er, sized 6 x 1 mm.
The voltage connection terminal modules are available in 2 variants (Figure 2-5).
2
1
4
3
6
5
8
7
10
9
12
11
14
13
16
15
18
17
18 terminal
Figure 2-5 Connection plug module with screw terminals for voltage connections — rear
view
Figure 2-6 shows an example of the allocation of an individual screw terminal to its ter-
minal number.
connection terminal 2
Figure 2-6 Allocation of screw terminal to terminal number — example
There is one version of a terminal block for current connections to a 7SA522. The ter-
minal block is illustrated in Figure 2-7.
2
1
4
3
6
5
8
7
10
9
12
11
12 terminal
connection terminal 1
2
1
7SA522 Manual
C53000-G1176-C119-2