9.2
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 IP 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.
•
Caution
:
• Always double-check the fuse size versus the calculated cable size. If
required, reduce fuse size or enlarge cable size.
• Cable length should not exceed the maximum length according to IEC60204
table 10.
Leakage breaker (optional)
If the installation requires a leakage breaker, always use an all current sensitive leakage breaker, RCM or
RCD Type B (according to IEC/EN 60755) with a sufficient trip level.
Currents and fuses
Compressor type
I
max
(1)
Max
fuse (1)
I
max
(2)
Max fuse
(2)
GA 7 VSD+
IEC
50 Hz
200 V
36.8 A
40 A
39.9 A
50 A
GA 7 VSD+
IEC
50 Hz
230 V
32.1 A
40 A
35.2 A
50 A
GA 7 VSD+
IEC
50 Hz
400 V + N
-
-
20.0 A
25 A
GA 7 VSD+
IEC
50 Hz
400 V
18.4 A
20 A
20.0 A
25 A
GA 7 VSD+
IEC
50 Hz
500 V
14.7 A
20 A
16.0 A
20 A
GA 7 VSD+
IEC
60 Hz
200 V
36.8 A
40 A
39.9 A
50 A
GA 7 VSD+
IEC
60 Hz
230 V
32.1 A
40 A
35.2 A
50 A
GA 7 VSD+
IEC
60 Hz
380 V
19.5 A
20 A
21.0 A
25 A
GA 7 VSD+
IEC
60 Hz
460 V
16.1 A
20 A
17.6 A
25 A
GA 7 VSD+
UL/cUL
60 Hz
200 V
36.8 A
40 A
39.9 A
50 A
GA 7 VSD+
UL/cUL
60 Hz
230 V
32.1 A
40 A
35.2 A
50 A
GA 7 VSD+
UL/cUL
60 Hz
460 V
16.1 A
20 A
17.6 A
25 A
GA 7 VSD+
UL/cUL
60 Hz
575 V
12.8 A
20 A
14.1 A
20 A
Compressor type
I
max
(1)
Max
fuse (1)
I
max
(2)
Max fuse
(2)
GA 11 VSD+
IEC
50 Hz
200 V
48.8 A
60 A
51.9 A
60 A
Instruction book
2920 7109 23
119
