Schaltbau CT1115/04 - Measures for Avoiding Damages and Malfunctions

8
2019-03-06 / V1.0
Dangers and security measures
Contactors CT/CU Series – Installation and Maintenance Instructions
3.3 Measures for avoiding damages and malfunctions
NOTICE
Aggressive uids may damage the contactors.
X Make sure that the contactors are not exposed to aggressive uids.
NOTICE
Improper handling of the contactors, e.g. when hitting the oor with some impact, can result in breakage, cracks
and deformation.
X Make sure that the contactors are always used properly.
X Do not throw the contactors to the oor.
X Regularly sight-check the contactors for potential damages.
X Immediately replace damaged components.
NOTICE
The contactors contain strong (permanent) magnets. These magnets can attract ferromagnetic particles and
may damage the contactors.
X Make sure that the contactors are installed at a location, where no ferromagnetic particles can be attracted..
NOTICE
The contactors contain strong (permanent) magnets. These magnets can destroy data on credit cards or similar
cards.
X Keep credit cards or similar cards away from the contactors.
NOTICE
During the switching o, strong electromagnetic elds are generated in the surroundings of the contactors.
These may inuence other components close to the contactors.
X Make sure that the contactors are installed at a location, where no other components can be aected.
NOTICE
In the case of damage, wear and tear and/or soiling of the contactor components - in the form of a partial break,
sharp edges and discoloured surfaces - the functional safety of the contactors is no longer guaranteed.
X Carry out regular visual checks to detect wear and tear and dirt.
X Immediately replace damaged parts.
X Immediately remove dirt without leaving any residues.
X Immediately replace parts with stubborn dirt.
NOTICE
Detent-edged rings and detent-edged washers have a limited life time. After 3 times opening of screws secured
with detent-edged rings or detent-edged washers, the rings or washers must be replaced by new ones.
X Record the frequency of screw opening in the work log.
X After 3 times opening of screws, replace detent-edged rings or detent-edged washers by new ones.