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7. Electrical connection
Electrical installation may only be performed by qualified electricians in accordance with the installation and
operating manual and the national regulations, standards and guidelines in force:
•
EN, DIN and VDE specifications, including all safety requirements.
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Technical connection conditions.
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Safety at work and accident prevention requirements.
This list does not claim to be complete.
Requirements should be applied under one‘s own personal responsibility.
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The electrical connections must be made as shown in the corresponding wiring diagrams and terminal
diagrams.
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The type of cable, size of cable and method of laying should be determined by an authorized electri
-
cian.
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Low and extra-low voltage cables should be laid separately.
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An all-pole mains disconnection device with at least 3 mm contact gap must be provided in the supply
line.
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Use a separate cable inlet for each cable.
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Any cable inlets that are not used must be sealed so that it is airtight.
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All cable inlets must have strain relief.
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Create equipotential bonding between the unit and the duct system.
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Check all protective measures after the electrical connection work (earthing resistance, etc.)
Connection compartment / Connections on the unit
The connection compartment is inside the unit. At first, remove the terminal box cover (see Fig. 12). Each
lead that is connected must pass through a separate cable gland (see Fig. 13). For this, use the supplied
cable glands, fittings and cover plate.
Cables that carry mains voltage must be fastened with the tension relief devices available.
Unit supply cable
Connect the mains supply cable as shown in the wiring diagram. For the dimensioning of the line, observe
the unit‘s rating plate and the relevant guidelines. Suitable fuse protection should be provided.
The extra-low voltage control cables must be laid separately from the mains cables.
•
Electricity warning (hazardous voltage)!
»
Failure to observe the hazard may result in death, injury or damage to property.
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Before performing any work on conductive parts, always disconnect the unit completely
from the electricity supply and make sure that it cannot be switched back on again.
Fig. 12:
Connection compartment
(1) Controller board
(2) Switchboard cover
Fig. 13:
Cable glands
(3) Cable gland power supply
(4) Cable gland free
(5) Cable gland control unit
Summary of Contents for ETA K 1200 V W
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