DAB MCE-30/C Instructions Pour L'installation Et La Maintenance page 25

ENGLISH
6.1 Connection to the Power Supply Line
MCE-22/C
The connection between the single-phase power supply line and the MCE-22/C must be made with a 3-core cable (phase + neutral +
earth). The characteristics of the power supply must satisfy the indications in Table 1.
The input terminals are the ones marked with the words LINE LN and with an arrow entering the terminals, see Figure 1.
Figure 1: Electrical connections
The minimum section of the input and output cables must be such as to guarantee correct tightening of the cable clamps, while the
maximum section accepted by the terminals is 4mm .
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The section, type and laying of the cables for supplying power to the inverter and connecting to the electropump must be chosen
according to the regulations in force. The table 2 supplies an indication on the section of the cable to be used to supply power to the
inverter. The table refers to 3-core PVC cables (phase + neutral + earth) and gives the recommended minimum section with relation
to the current and the length of the cable.
The electropump current is generally specified on the motor data plate.
The maximum supply current of the MCE-22/C may generally be estimated as double the maximum current absorbed by the pump.
Although the MCE-22/C has its own internal protections, it is still advisable to install a suitably sized thermal magnetic circuit breaker.
ATTENTION: The thermal magnetic circuit breaker and the power cables of the MCE-22/C and of the pump must be of a size suited
to the system; if the indications given in the manual do not agree with the regulation in force, use the regulation as reference.
MCE-55/C
The connection between the three-phase power supply line and the MCE-55/C must be made with a 4-core cable (3 phases + earth).
The characteristics of the power supply must satisfy the indications in Table 1.
The input terminals are the ones marked with the words LINE RST and with an arrow entering the terminals, see Figure 1.
Figure 1: Electrical connections
The maximum section accepted by the input and output terminals is 6 mm².
The external diameter of the input and output cables accepted by the cable glands for correct tightness varies from a minimum of 11
mm to a maximum of 17 mm.
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