Siemens SIRIUS 3RT - Page 204

Mounting
7.3 Replacing solenoid coils
SIRIUS - SIRIUS 3RT Contactors/Contactor assemblies
204 Manual, 09/2017, A5E03656507120A/RS-AE/006
Configuration note
If the coil is also to be replaced when the contactor is installed, a clearance upwards of
approximately 120 mm (for contactors of size S6) or 150 mm (size S10 and S12) must be
taken into account when configuring.
Identical solenoid operating mechanisms
Regardless of the performance level, the solenoid operating mechanisms and thus the
withdrawable coils within one size are identical, and in the case of size S12 also between air-
break contactors and vacuum contactors.
Identical solenoid operating mechanisms / withdrawable coils (×):
Size
Type
3RT10 and 3RT14 air-break contactors
3RT12 vacuum contactors
S6
X
S10
X
X
S12 X X
The 3RT1...-.S.36 contactors with fail-safe control input provide the opportunity of
implementing safety applications by means of control via a fail-safe output (PLC or safety
relay). This control is only possible with a special version of the solenoid coil.
WARNING
Hazardous Voltage
Can Cause Death, Serious Injury, or Damage to Property.
Changing the solenoid coil for 3RT1...-.S.36 contactors is not permissible.
On the 3RT1...-.S.36 contactors with fail-safe control input it is not permissible to change
the solenoid coil.
"Contactors without coil" version
The air-break contactors and vacuum contactors are available across the entire performance
range, even without a coil. Depending on requirements, they can be supplemented on-site
with coils of the desired actuator type and control circuit voltage (article number of this
contactor version: 3RT1...-.LA06).