Figure 3-36: Graphical Symbols For Auxiliary Contact Elements In Acc. With En 50 012 (Excerpt); Figure 3-37: Device Circuit Diagrams Of The Auxiliary Switch Blocks (Din En 50 012) - Siemens sirius System Manual

3RT1/3RH1 contactors
EN 50 012/
EN 50 011
Graphical symbols for
auxiliary contact ele-
ments
Coil Main contact elem.

Figure 3-36: Graphical symbols for auxiliary contact elements in acc. with EN 50 012 (excerpt)

Device circuit diagrams
3-60
For certain equipment such as auxiliary contact elements of contactors and
auxiliary contactors, the EN 50 012 and EN 50 011 standards also apply.
The EN 50 012 defines the terminal markings and identification numbers for
auxiliary contact elements of particular contactors.
The terminal markings of the auxiliary contact elements match the terminal
markings of corresponding auxiliary contactors with the ID letter E (in acc.
with EN 50 011). For auxiliary contact elements of contactors with the same
identification number, the terminal marking must correspond to the
sequence defined in the standard.
Below are some examples of graphical symbols for auxiliary contact ele-
ments of contactors that comply with EN 50 012:
ID
Auxiliary contact elements
no.
13 21 33 43
31
14 22 34 44
13 21 33 43
41
14 22 34 44
The following device circuit diagrams of the auxiliary switch blocks for con-
tactors that switch motors contain the terminal markings in acc. with
EN 50 012:
3RT101 contactors
2 NO + 2 NC contacts
Identification number: 22E
1 3 5 13 21 31 43
A1(+)
A2( )
2 4 6 14 22 32 44
Contactors 3RT102, 3RT103, 3RT104, 3RT1446
2 NO + 2 NC contacts
Identification number: 22
A1(+) 1 3 5 13 21 31
A2( ) 2 4 6 14 22 32
4-pole auxiliary switch blocks 3RH1921-1HA.., can be snapped onto the
front
3 NO contacts + 1
Identification no.: 31E
13 21 33 43
14 22 34 44

Figure 3-37: Device circuit diagrams of the auxiliary switch blocks (DIN EN 50 012)

ID
Auxiliary contact elements
no.
13 21 31
22
14 22 32
53 13 21 31
32
54 14 22 32
2 NO + 3 NC contacts
Identification number: 23E
1 3 5 13 21 31 41
A1(+)
A2( )
2 4 6 14 22
43
44
2 NO + 2 NC contacts
13 21 31 43
14 22 32 44
ID
Auxiliary contact elements
no.
43 13 21
13
44
14 22
43 53 13 21
23
44 54 14 22
3 NO + 2 NC contacts
Identification number: 32E
53
1 3 5 13
A1(+)
32 42 54
A2( )
2 4
1 NO + 3 NC contacts
13 21 31 41
14 22 32 42
SIRIUS System Manual
GWA 4NEB 430 0999-02b
31 41
32 42
31 41 53
32 42 54
21 31 43 53
6 14 22 32 44 54