Control 4 C4-KNX-THERM Series User Manual page 18

Control element 2/4-fold with rtc fm
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Danger - Electric voltage!
Risk of death due to electrical voltage of 230 V during short-circuit in the low-
voltage line.
Low-voltage and 230 V cables must not be installed together in a flush-
mounted socket!
Danger - Electric voltage!
Install the device only if you have the necessary electrical engineering
knowledge and experience.
Incorrect installation endangers your life and that of the user of the electrical
system.
Incorrect installation can cause serious damage to property, e.g. due to fire.
The minimum necessary expert knowledge and requirements for the installation
are as follows:
Apply the "five safety rules" (DIN VDE 0105, EN 50110):
1. Disconnect
2. Secure against being re-connected
3. Ensure there is no voltage
4. Connect to earth and short-circuit
5. Cover or barricade adjacent live parts.
Use suitable personal protective clothing.
Use only suitable tools and measuring devices.
Check the type of supply network (TN system, IT system, TT system) to
secure the following power supply conditions (classic connection to ground,
protective earthing, necessary additional measures, etc.).
Notes on the instruction manual
│18

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