
8 | Electrical installation
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Operating instructions CMVpro 125-400 ATEX | Version 1-en
• Use insulated ring terminals for phase conductors.
• Attach the protective earthing (PE) to the protective earthing connection in
the terminal box using a ring terminal and serrated lock washer.
• Check:
• Only ATEX cable gland(s) and ATEX blind plugs are allowed.
• Cable gland on the terminal box is suitable for the diameter of the con-
nection cable.
• All unused cable inlets on the terminal box are sealed watertight with
blind plugs.
• Sealing ring and sealing surface on the terminal box are clean.
• Close terminal box.
8.6
Mounting motor cover
After completion of the electrical installation work, an optional motor cover can
be installed on a fan mounted outdoors
_
31].
Fig. 34:
Mounting motor cover
• Fasten the motor cover to the support as depicted.
8.7
Final inspection
• Verify mains and motor connections with motor nameplate data.
• Check the sizing and setting of the electrical protective devices (fuses, mo-
tor protection switch).
• Check installation of motor connection cable and isolation switch.
• Three-phase mains voltage is applied to the line side of the isolation
switch.
• Check connections of protective earthing (PE) and grounding for fixed posi-
tion and for execution compliant with standards.
• If frequency converter (FC) is used:
• Check FC terminal assignment, shield connection, and cable strain re-
lief.