10
2021-06-09 / V1.0
Product information
Contactors CPP series – Installation and Maintenance Manual
4.4 Application
Thanks to many years of experience and expertise in the development of
electromechanical switchgear and the control of arcs, especially DC arcs,
Schaltbau has a compact contactor for high rated insulation voltages in its
range with the CPP series. The device, which is available as a NO or NC con-
tactor, is suitable as a precharging contactor for the large Schaltbau CP and
CT series. It can also be used as a universal contactor.
CPP
NC
NO
AC
DC
R
C
R
Precharge contactor
Discharge contactor
Main contactor
CP or CT series
Converter
Catenary
Rail
NO
Precharging NO contactor
Use as a classic precharging con-
tactor in the make contact variant:
connecting and disconnecting the
resistor for precharging the DC link
in converters of railway vehicles.
NC
Discharging NC contactor
Use as discharge contactor in the
NC contact variant: discharging the
capacitor in the DC link in convert-
ers of railway vehicles or in indus-
trial test systems.
Universal contactor
NO or NC contactor for switching
single-pole loads for small and me-
dium switching capacities.
4.5 Technical information and material
properties
For technical information and material properties, refer
to the corresponding data sheets and to our
C45 cata-
logue
. The
C45 catalogue
is available under:
https://www.schaltbau.com/en/media-library/
