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2021-07-15 / V1.0
Contactors C320K/C320S – Installation and Maintenance Manual
Hazards and safety precautions
3.3 Measures for avoiding damage and malfunctions
ATTENTION
Aggressive liquids may damage the contactors.
X
Ensure the contactors do not come into contact with corrosive liquids.
ATTENTION
Improper handling of the contactors, e.g. dropping on the floor, can result in breaks, cracks and deformation.
X
Ensure the contactors are always handled correctly.
X
Do not throw the contactors on the floor.
X
At regular intervals perform a visual check of the contactors for possible damage.
X
Immediately replace any damaged parts.
ATTENTION
Depending on the product type, contactors can contain permanent magnets. Such magnets can attract ferro-
magnetic parts resulting in damage to the contactors.
X
Ensure that the contactors are installed in a location where it is not possible for them to attract any ferro-
magnetic parts.
ATTENTION
Depending on the product type, contactors can contain permanent magnets. These permanent magnets can
destroy the data on the magnetic strips of credit or similar cards.
X
Keep credit or similar cards away from the contactors.
ATTENTION
During switching off, strong electromagnetic fields are generated in the vicinity of the contactors. These may
influence other components close to the contactors.
X
Make sure that the contactors are installed in a location where no other components are affected.
ATTENTION
In the case of damage, wear and/or soiling of the contactors - in the form of a partial break, sharp edges and
discoloured surfaces - the functional reliability of the contactors is no longer ensured.
X
Visually inspect the contactors regularly to detect wear and soiling.
X
Replace damaged parts immediately.
X
Immediately remove any soiling without leaving any residues.
X
Immediately replace any parts with persistent soiling.
ATTENTION
Detent-edged rings and detent-edged washers have a limited life time. After screws secured with detent-edged
rings or detent-edged washers have been undone three times, the rings or washers must be replaced by new
ones.
X
Record the frequency of undoing of the screws in the work log.
X
Replace detent-edged rings or detent-edged washers with new ones after the screws have been undone
three times.
