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4 Installation
• The unit complies with and is approved according to EMC Directive 2014/30/EU. In the
European Union, equipment in which the unit is incorporated must also comply with the
same directive.
• The unit is approved as industrial equipment connected to a power network that is
supplied by a dedicated high or medium voltage transformer. The unit is not intended to
be used in low-voltage public networks which supply domestic premises.
• The unit complies with the emission and immunity requirements of EN 61000-6-4 and EN
61000-6-2
For more information, contact the sales and service representative.
4.2.3 Electrical installation
These requirements apply:
• The cables must follow the local rules and regulations.
• The power supply to the controller must be designed such that it is possible to isolate the
controller completely from the power.
• All fuses and circuit breakers must have the correct rating, and follow the local rules and
regulations. For more information, see
• A short-circuit protection must be installed at the power supply to avoid electric shock
and fire. The installation must follow the local rules and regulations.
• An authorized local sales and service representative must replace the glass fuse in the
control box. For more information, see
4.2.4 Cables
These requirements apply:
• The cables must be in good condition, not have any sharp bends, and not be pinched.
• The sheathing must not be damaged and must not have indentations or be embossed at
the cable entry.
• The minimum bending radius must not be below the accepted value.
• All cable entries must be sealed to maintain the IP rating of the unit.
• The cables must have the applicable temperature rating.
• The minimum temperature rating of the power supply cable must be 70°C (158°F).
4.2.5 Current transformer
WARNING: Electrical Hazard
There is a risk of electric shock or burn. Always disconnect the main power supply before the
current transformers are installed, removed, or repaired.
• An input voltage connected to the current transformer must be within SELV limits.
• The current transformer must be suitable for the application.
• The current transformers must not be installed in the following conditions:
• The current transformers are not applicable for Class 2 wiring methods.
• The current transformers are not intended for connection to Class 2 equipment.
• The current transformer and conductors must be installed in such a way that the
conductors do not touch live terminals or bus.
• For North America and other applicable markets
18
– If they cover more than 75 percent of cross-sectional area of the wiring space in the
equipment
– If they block the ventilation opening
– If they are installed in an area of the breaker arc venting
– A current transformer connected to the pump module must be UL listed.
Variants
on page 44.
Glass fuse properties
on page 45.
DCM 711 Installation, Operation, and Maintenance Manual
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