Hardware and Connections
2-6 7SA522 Manual
C53000-G1176-C119-2
2.1.2 Screw terminal connections
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.
Terminal Blocks for
Voltage
Connections
The voltage connection terminal modules are available in 2 variants (Figure 2-5).
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.
Figure 2-6 Allocation of screw terminal to terminal number — example
Terminal Block for
Current
Connections
There is one version of a terminal block for current connections to a 7SA522. The ter-
minal block is illustrated in Figure 2-7.
18 terminal 12 terminal
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
1
2
3
4
5
6
7
8
9
10
11
12
1
2
connection terminal 1
connection terminal 2
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