Configuration - Siemens SIRIUS 3RT Series System Manual

SIRIUS 3RT2 contactors/contactor assemblies
2.7 Accessories
2.7.2.2

Configuration

Maximum number of auxiliary switch blocks
The maximum number of auxiliary switch blocks which can be attached is determined by
technical constraints and by the applicable standard.
Note
A maximum of four NC contacts is possible (from integrated and laterally mounted auxiliary
switch blocks combined).
For 3RT23 and 3RT25 contactors in size S0, auxiliary switches can only be fitted by means
of a lateral auxiliary switch block (on the left or right side).
The tables below show the maximum number of auxiliary switch blocks which can be
mounted on 3RT2 power contactors/3RH2 contactor relays and the available combination
options according to the applicable standard.
Table 2- 26 Auxiliary switch combination options (3RT2 power contactor)
Size Number of
integrated
auxiliary
switches
S00 1 NO contact
or 1 NC
contact
S0 1 NO contact
and 1 NC
contact
1 left + 1 right
1)
164
3RT2 power contactor according to
DIN EN 50005
Possible On the front
versions
1-pole
1 1
2 0
3 0
1 1
2 0
3 0
Lateral
4-pole 2-pole
0 1
1 0
0 2
1)
0 1
1 0
0 2
1)
DIN EN 50012
On the front
1-pole 4-pole
1 0
0 1
0 0
1 0
0 1
0 0
SIRIUS Innovations
System Manual, 01/2011, A8E56203870002-03
Lateral
2-pole
0
0
1 right
0
0
1 right