Siemens SIRIUS System Manual

3RT1/3RH1 contactors
SIRIUS System Manual
3-60
GWA 4NEB 430 0999-02b
EN 50 012/
EN 50 011
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.
Graphical symbols for
auxiliary contact ele-
ments
Below are some examples of graphical symbols for auxiliary contact ele-
ments of contactors that comply with EN 50 012:
Figure 3-36: Graphical symbols for auxiliary contact elements in acc. with EN 50 012 (excerpt)
Device circuit diagrams
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
Contactors 3RT102, 3RT103, 3RT104, 3RT1446
4-pole auxiliary switch blocks 3RH1921-1HA.., can be snapped onto the
front
Figure 3-37: Device circuit diagrams of the auxiliary switch blocks (DIN EN 50 012)
14 22 34 44
13 21
33 43
14 22 34 44
13 21 33 43
Coil Main contact elem.
54
53
ID
no.
Auxiliary contact elements
ID
no.
Auxiliary contact elements
14 22 32 44
13 21 31 43
14 22 32 44
13 21 31 43
54
53
ID
no.
Auxiliary contact elements
14 22 32 42
13 21 31 41
14 22 32 42
13 21 31 41
54
53
31
41
22
32
13
23
13513
14642
A2( )
A1(+)
21 31 43
443222
2 NO + 2 NC contacts
Identification number: 22E
13513
14642
A2( )
A1(+)
21 31 41
423222
53
54
13513
14642
A2( )
A1(+)
21 31 43
443222
53
54
3 NO + 2 NC contacts
Identification number: 32E
2 NO + 3 NC contacts
Identification number: 23E
2 NO + 2 NC contacts
Identification number: 22
1
35
13
14
6
42A2( )
A1(+)
21
22
31
32
43
44
NSK-1321
3 NO contacts + 1
Identification no.: 31E
2 NO + 2 NC contacts
1 NO + 3 NC contacts
13 21 33
342214
43
44
13 21 31
322214
43
44
13 21 31
322214
41
42

Siemens SIRIUS Specifications

General

Brand	Siemens
Model	SIRIUS
Category	Relays
Language	English