Siemens SIRIUS 3RT - 3 RT10; 3 RT14 Power Contactors and 3 RT12 Vacuum Contactors

Product description
4.2 Device versions
SIRIUS - SIRIUS 3RT Contactors/Contactor assemblies
Manual, 09/2017, A5E03656507120A/RS-AE/006
41
4.2.2
3RT10 / 3RT14 power contactors and 3RT12 vacuum contactors
The 3RT1 contactors are equipped with conventional AC / DC and solid-state AC / DC
operating mechanism options.
The solid-state operating mechanism has two operating modes and can be optionally
equipped with a remaining lifetime signal.
Versions
Table 4- 2 Versions of the 3RT1 power contactors
Feature
Specifications
Version
3RT10 power contactor and
3RT12 vacuum contactors
for switching of electrical
loads
3RT10 power contactor with
extended operating range
for rail applications
3RT14 power contactor for
switching resistive loads
Number of poles
3
Number of factory-
mounted auxiliary
contacts
S6
2 NC contacts and 2 NO contacts
S10 2 NC contacts and 2 NO contacts
S12
2 NC contacts and 2 NO contacts
Auxiliary contact complement
The vacuum contactors can be fitted with up to eight lateral auxiliary contacts. Please ensure
symmetry in the case of laterally-mounted auxiliary switch blocks. Up to four NC contacts are
permissible.
Connection systems
The contactors can be supplied with the connection systems detailed below:
● Screw connection
● Spring-loaded connection
● Bus connection
● Box terminal connection