9
Technical data
9.1
Electric cable size and fuses
Important
• The voltage on the compressor terminals must not deviate more than 10% of the
nominal voltage.
It is however highly recommended to keep the voltage drop over the supply cables
at nominal current below 5% of the nominal voltage (IEC 60204-1).
• If cables are grouped together with other power cables, it may be necessary to use
cables of a larger size than those calculated for the standard operating conditions.
• Use the original cable entry. See section
.
To preserve the protection degree of the electric cubicle and to protect its
components from dust from the environment, it is mandatory to use a proper
cable gland when connecting the supply cable to the compressor.
• Local regulations remain applicable if they are stricter than the values proposed
below.
• Currents are calculated with the full service factor, but we suggest to add 10% due
to over- and under-voltage. Fuses are maximum allowed values for full service
factor and 10% over- and under-voltage.
•
Causion
• Always double check the fuse size versus the calculated cable size. If
required, reduce the fuse size or enlarge the cable size
• Cable lenght should not exceed the maximum lenght according to IEC60204
table 10
Currents and fuses
IEC approval
Compressor specification
I(1)
Max Fuse
(1)
I(2)
Max Fuse
(2)
Type
gL/gG
gL/gG
V
Hz
A
A
A
A
A1
30kW
230
50
114
125
124
160
A2
30kW
230
50
114
125
124
160
X
30kW
230
50
114
125
-
-
A2
30kW
220
60
118
160
129
160
X
30kW
220
60
118
160
-
-
A1
30kW
230
60
114
125
125
160
X
30kW
230
60
114
125
-
-
A1
30kW
400
50
66
80
72
80
A2
30kW
400
50
66
80
72
80
X
30kW
400
50
66
80
-
-
A1
30kW
440
60
59
63
65
80
A2
30kW
440
60
59
63
65
80
X
30kW
440
60
59
63
-
-
Instruction book
2920 7101 41
77
Summary of Contents for CPC 40 G
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