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Theben TR 641 S DCF Manual

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3.0 Application / installation
Time switches switch ON, OFF and over connected electrical units, depending on
time, on a daily or weekly cycle and related to date.
–The time switch TR 641 S / TR 641 S DCF may only be used in dry
areas
–Time switches are suitable for use in environmental conditions with nor-
mal pollution.
–The time switch TR 641 S / TR 641 S DCF is suitable for mounting on
the 35 mm top-hat rail (DIN EN 50022)
–Wall mounting with installation kit 907 0 053
3.1 Safety instruction
The connection and installation of electrical equipment may be
effected only by a qualified electrician. National regulations
and any valid safety conditions should be observed.
Interference with and changes to the product will result in can-
cellation of the guarantee.
3.2 Installation instructions
In spite of expensive protection measures, exceptionally strong magnetic
fields can lead to the destruction of the micro-processor controlled time
switch.
We therefore recommend attention be given to the following points before
installation:
– Use separate lead for the mains voltage supply.
– Suppress inductive loads with suitable RC filters.
– Do not mount product in direct proximity to sources of interference as e. g.
transformers, contactors, PCs and TV and communication equipment.
– After suffering intereference, we recommend, before re-setting, a RESET with
a new initial set up (chapter 5.3).
– Strongly heat-generating products on the right side of the product shorten the
life of the battery.
3.3 Electrical connection
National regulations and any valid safety conditions must be
observed.
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