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| Electrical connection
8 Electrical connection
8.1 Safety information
Danger: Electrically charged device
Risk of electric shock
♦ When working on an electrically charged device,
stand on a rubber mat.
Danger: Voltage on the device
Risk of electric shock
♦ Always connect a protective earth first.
♦ Check the protective earth.
Danger: Faulty insulation
Risk of electric shock
♦ Use only cables that meet the specified installation
regulations for voltage, current, insulation material,
capacity, etc.
♦ Route cables so that they cannot be touched by any
rotating parts.
Danger: Electrical charge (>50 μC) between phase
conductor and protective earth connection after
switching off supply with multiple devices connected in
parallel.
Risk of electric shock
♦ Ensure sufficient protection against accidental
contact. Before working on the electrical hookup,
short the supply and PE connections.
Warning: Danger from electrical voltage!
♦ Observe the 5 rules of electrical safety, see 2.3 5 rules of electrical safety, page 2.
♦ Prevent the ingress of water into the connection box.
♦ Electrical connection may only be carried out by adequately qualified persons, details see Table 1 Qualifications, page
1.
♦ Observe and respect local conditions, regulations and laws.
♦ Wear protective equipment during all work in the vicinity of the fan, details see 2.2 Personal protective equipment,
page 2.
♦ The rotor is not protected by insulation nor grounded to earth in accordance with DIN EN 60204-1, and for this rea-
son the system constructor must provide protection in the form of obstacles or a location outside the handling area
in accordance with DIN VDE 0100-410, Attachment B, before the motor is connected to a power source.
♦ Do not use metal compression-gland fittings with plastic terminal boxes. - Danger of an electric shock if connection
is not made correctly!
♦ Wait five minutes after disconnecting the voltage at all poles before opening the device.
Warning: Danger due to electrostatic influence on medical implants (e.g. cardiac pacemaker)!
♦ Persons with medical implants (e.g. cardiac pacemaker) should keep enough distance to the fan.
8.2 Preconditions
♦ Abide by the system-related conditions and requirements of the system manufacturer or plant constructor.
♦ Safety elements may not be dismantled, circumvented or deactivated.
♦ Install a circuit breaker in the permanent electrical installation, with a contact opening of at least 3 mm at each pole.
8.3 Connection
♦ Check if the data on the nameplate matches the
connection data.
♦ Complete the electrical connection according to the
circuit diagram.
♦ Lay the connection cables in the terminal box in such
a way that allows the cover of the terminal box to be
closed without resistance.
♦ Use all of the locking screws.
♦ Insert the screws by hand to avoid damaging the
thread.
♦ Tighten all glands well in order to guarantee
protection class IP.
♦ Screw the lid of the terminal box/inspection switch
evenly tight.
♦ Connect the cable end in a dry environment.
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