Figure 3-31: Auxiliary Switch At Front; Table 3-23: Expansion Options For Auxiliary Switch Blocks - Siemens sirius System Manual

3RT1/3RH1 contactors
Auxiliary switch at front
3-54
The following table shows you the expansion options for the different frame
sizes:
Frame size Auxiliary switch block
S00 1, 3 and 4-pole (attachable at the front)
Feeder auxiliary switch (attachable at the front):
• 1-pole (1 NO or 1 NC contact)
• 2-pole (1 NO + 1 NC or 2 NO contacts)
Infeed from above or below possible
S0 to S3 1, and 4-pole (attachable at the front)
2-pole (attachable at the side)
Feeder auxiliary switch (attachable at the front):
• 2-pole (1 NO + I NC contact)
• 2-pole (2 NO or 2 NC contacts)
Infeed from above or below possible

Table 3-23: Expansion options for auxiliary switch blocks

Auxiliary switches that can be attached at the front are hooked into the
opening of the contactors and pulled down until they snap into place. They
can be removed using the release lever in the middle.
2

Figure 3-31: Auxiliary switch at front

1
Connection
Screw-type/Cage
Clamp terminal
Screw-type termi-
nal
Screw-type/Cage
Screw-type termi-
nal
Clamp terminal
Screw-type termi-
nal
SIRIUS System Manual
GWA 4NEB 430 0999-02b