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The appliance must be connected to a main switch that cuts off all the power supply poles. When the switch
is in off position, the distance separating each contact must respect the indications in table 1b.
Table 3b: Minimum distance between the contacts of the power switch
Current absorption and thermal magnetic circuit breaker sizing for maximum power
Supply voltage [V]
Max. motor current absorption [A]
Max. inverter current absorption [A]
Rated current of thermal magnetic circuit
breaker [A]
Supply voltage [ 3 x V]
Max. motor current absorption [A]
Max. inverter current absorption [A
Rated current of thermal magnetic circuit
breaker [A]
Table 4c: Current absorption and thermal magnetic circuit breaker sizing for maximum power
CAUTION: The line voltage may change when the electrical pump is started up by the inverter.
The voltage may be subject to variations according to other devices connected, and the quality of the line.
2.2.1.1
Connection to the power line MCE-22/P – MCE-15/P – MCE-11/P
The inverter must be connected to the single-phase power line by means of a 3-core cable (phase neutral +
earth). The relative line specifications must correspond to those shown in Table 1.
The input terminals are those marked with the text LN and an arrow pointing towards the terminals; see
Figure 3.
The section, type and laying of cables for inverter power supply and electric pump connections must be
selected in compliance with current standards. Table 2 provides indications on the cable section to be used.
The table refers to cables in PVC with 3-core cable (phase neutral + earth)with the minimum recommended
section based on the current and length of cable.
The current supply to the inverter can generally by estimated (with a relative safety margin) at 2.5 times the
current absorbed by the three-phase pump. For example, if the pump connected to the inverter absorbs 10A
per phase, the inverter power supply cables should be sized for 25A.
Minimum distance between the contacts of the power switch
Power supply [V]
Minimum distance
[mm]
380
13,5
17,0
Figure 5: Electrical connections
ENGLISH
>127 and ≤240
>240 and ≤480
>3
MCE-22/P
230 V
10,5
22,0
25
MCE-55/P
MCE-30/P
480
380
10,7
13,5
13,0
17,0
20
16
20
75
>6
MCE-15/P
230 V
8,0
18,7
20
MCE-150/P
480
380
480
10,7
32,0
25,3
13,0
42,0
33,5
16
50
40
MCE-11/P
230 V
6,5
12,0
16
MCE-110/P
380
480
32,0
25,3
42,0
33,5
50
40
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