Operating instructions
Mounting
6
104485 • 03/03
Electrical connection conditions
The connection to the electrical power system
may be carried out only by adequately trained
expert.
Caution
Overvoltages and undervoltages must not exceed the 10% mark.
This unit is intended for operation on a power supply network with a maximum system
impedance Z
max
at the interconnection point (house service line), which is listed in the
table below in dependence of the performance. The user shall have to ensure that the
unit is operated only on a power supply network which meets these requirements. If and
when necessary, the local power supply company can provide information on the system
impedance.
400V-50Hz 3 ph
230V-50Hz 1 ph
Motor
per-
formance
Motor
rated
current
Protection
– s
tar-
delta
starting
Protec-
tion –
direct
starting
Motor
per-
formance
Motor
rated
current
Protection
– s
tar-
delta
starting
Protec-
tion –
direct
starting
kW
A A A kW
A A A
1.1 2.6
6 1.1 2.6
6
1.5 3.5/4.1
10 1.5 3.5/4.1
10
2.2 5.0/6.0
16 2.2 5.0/6.0
16
3.0 6.6/8.1
16 3.0 6.6/8.1
16
4.0 8.5 16 20 4.0 8.5 16 20
5.5 11.5
20
5.5 11.5
20
7.5 15.5
25
7.5 15.5
25
11.0 22.5 35
11.0 22.5 35
15.0 30.0 50
15.0 30.0 50
18.5 36.0 50
18.5 36.0 50
22.0 43.0 63
22.0 43.0 63
30.0 58.0 80
30.0 58.0 80
37.0
68 80
37.0
68 80
45.0 81 100
45.0 81 100
55.0 99 125
55.0 99 125
75.0 134 160
75.0 134 160
Tab. 1: Characteristic value for the electrical connection
The supply line cross sections provided are recommended values for a maximum 50m line
length at 30°C. For fuse protection, use “slow-to-blow” or “gL” fuses.
•
220/240 V systems require a three-core 1P/N/PE cable.
•
380/400 V systems require a four-core 3P/PE cable for direct start.
•
380/400 V systems require for star-delta starting a five-core supply line 3P/N/PE.
