16
2021-04-12 / V1.1
Installation
Contactors CP Series – Installation and Maintenance Instructions
8.2.2 Required minimum clearance
NOTICE
Switching of high voltage currents produces electric
arcs and it is possible that plasma will escape from
the openings of the arcing chambers. Therefore, it
is extremely important to maintain the minimum
clearances to live and earthed parts to avoid asho-
vers. These minimum clearances have been tested
and specied in relation to the switching capacity of
the contactors.
X
The required minimum distances to all sides and
upwards are given in the respective data sheets or
can be found in our C40 catalogue. The catalogue
is available under:
https://www.schaltbau.com/en/media-library/
8.2.3 Ventilation requirements
X
Ensure sucient ventilation, especially in the case
of heavy arc switching. Allow the exchange of sur-
rounding atmosphere to avoid the risk of ash-
overs and excessive corrosion.
8.2.4 Mounting holes
The mounting holes at the mounting frame or plate can
either be
- threaded holes (for threaded screws)
- or through holes (for threaded screws and nuts).
Depending on the contactor type the dimensions and
arrangements of the mounting holes are shown in
Fig. 9 and Fig. 10.
[mm]
or M8
4 x Ø 9
± 0.1
203
±
0.1
76
±0.1
Fig. 9: Dimensions and arrangement of the mounting holes
for devices with 600 A (not to scale)
[mm]
or M8
4 x Ø 9
± 0.1
203
±
0.1
96
±0.1
Fig. 10: Dimensions and arrangement of the mounting holes
for devices with 1,200 A and 2,000 A (not to scale)
8.2.5 Safety
X
The installation has to be carried out by qualied
trained personnel.
DANGER
The contactor meets the requirements
of basic insulation. Without proper
earthing connection, metal parts and
wires may be energized in the case of
a failure. Risk of serious injuries or even
death!
X
Make sure that the mounting frame
or mounting plate on which the
contactor is mounted is earthed in
a shock and vibration-proof way.
WARNING
The contactor is heavy. Risk of injury and
damage to the device.
X
Take care when handling the con-
tactor.
X
Always two or more persons are
required to unpack, transport and
install the contactor.
X
When carrying the contactor al-
ways hold it on the base plate.
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