Electrical Connections; Connection To The Power Supply Line - DAB MCE-22/C Installations- Und Wartungsanleitungen

-
Conducted emissions. Residential environment (in some cases restrictive measures may be
requested).

5. ELECTRICAL CONNECTIONS

Always switch off the mains power supply before working on the electrical or
mechanical part of the system. Before opening the equipment, wait at least 5 minutes
after disconnecting it from the power supply. The capacitor of the direct current
intermediate circuit remains charged with dangerously high voltage even after the
mains power has been turned off.
Only firmly cabled mains connections are admissible. The appliance must be earthed
(IEC 536 class 1, NEC and other applicable standards).
Ensure that the voltage and frequency on the data plate of the MCE-22/C are the same
as those of the power mains.
5.1

Connection to the Power Supply Line

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.
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
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.
ENGLISH
Figure 1: Electrical connections
40
2
.