9 Technical data
9.1 Electric cable size
Attention
The voltage on the compressor terminals must not deviate more than 10% from 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.
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 Dimension drawings.
The compressor is delivered with 3 m (10 ft.) cable and a fitting cable gland.
This cable gland is necessary to ensure the protection degree of the electric cubicle and
to protect its components from dust from the environment.
Local regulations remain applicable if they are stricter than the values proposed below.
Recommended cable size
Power variant 7.5 kW
10 hp
11 kW
15 hp
15kW
20 hp
Frequency
(Hz)
Voltage
(V)
Cable Size Cable Size Cable Size
UL/cUL
60 208–230–460 AWG8/AWG10 AWG6/AWG10 AWG4/AWG8
9.2 Settings for overload relay and fuses
7.5 kW
10hp
11 kW
15hp
15 kW
20hp
Frequency
(Hz)
Voltage
(V)
UL/cUL
Setting
overload
relay FM1
(A)
Main fuses
(class J or
RK) + Disc.
switch size
>= 1.25 x
FLA
Setting
overload
relay FM1
(A)
Main fuses
(class J or
RK) + Disc.
switch size
>= 1.25 x
FLA
Setting
overload
relay FM1
(A)
Main fuses
(class J or
RK) + Disc.
switch size
>= 1.25 x
FLA
60 DOL
208-230–
460
36.3-34.3–
16.9
50-45–25 A 48-45–22.5 60-60–35 A N/A N/A
60 YD
208-230–
460
N/A N/A N/A N/A 33.2-30–15 80-80–40 A
Instruction book
76 2920 7201 40
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