Operating Instructions
Busch-Welcome
®
Installation and electrical
connection
Operating Instructions | 1473-1-8354
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11
Installation and electrical connection
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Warning
Electric voltage!
Risk of death due to electrical voltage of 230 V during short-circuit in the low-voltage line.
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Low-voltage and 230 V lines must not be installed together in a flush-mounted socket!
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11.1
Requirements for the electrician
Warning
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 from power;
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.
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Use only suitable tools and measuring devices.
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Check the supply network type (TN system, IT system, TT system) to secure the following
power supply conditions (classic connection to ground, protective earthing, necessary
additional measures, etc.).
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Warning
Electric voltage!
Risk of death and fire due to electrical voltage of 230 V.
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Work on the 230V supply system may only be performed by authorised electricians!
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Disconnect the mains power supply prior to installation and/or disassembly!
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11.2
Mounting
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The MDRC must only be installed on mounting rails according to DIN EN 500022. The MDRC is latched onto the
mounting rail.
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