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Siemens SIRIUS 3RT2.1 Series System Manual

Siemens SIRIUS 3RT2.1 Series
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SIRIUS 3RV2 motor starter protectors
4.9 Accessories
SIRIUS Innovations
System Manual, 01/2011, A8E56203870002-03
409
4.9.2 Installation rules/Component rules
Maximum expansion
The maximum expansion of the 3RV2 motor starter protector is one transverse auxiliary
switch, one lateral auxiliary switch with 2 contacts, one signaling switch, and one auxiliary
release.
The lateral auxiliary switch 2 NO + 2 NC can also be used as an alternative to a transverse
auxiliary switch and a lateral auxiliary switch with 2 contacts. However, in this case it will not
be possible to add a signaling switch. Accordingly, a maximum of 4 auxiliary contacts with
auxiliary switches may be mounted on each motor starter protector.
Possible combinations
The following auxiliary/signaling switch and auxiliary switch combinations are possible:
The lateral auxiliary switch must be mounted to the left of the signaling switch.
Transverse and lateral auxiliary switches can be combined.
A maximum of 4 auxiliary contacts may be added.
One auxiliary release can be mounted on the right of each motor starter protector.
The signaling switch must be selected before the auxiliary switch.
Once a signaling switch has been selected, only one lateral auxiliary switch with 2
contacts can be selected. It is not possible to select the lateral auxiliary switch with 4
contacts.
The total number of auxiliary switch contacts must not exceed 4.

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Siemens SIRIUS 3RT2.1 Series Specifications

General IconGeneral
BrandSiemens
ModelSIRIUS 3RT2.1 Series
CategoryIndustrial Equipment
LanguageEnglish

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