C6.2.15/0815/E
19
4
Electrical connection
4.1 General recommendations
The compressor terminal box has a wiring diagram on the inside of its cover. Before connecting
the compressor, ensure the supply voltage, the phases and the frequency match the nameplate
data.
4.2 Electrical installation
Figure 27: Power circuit single-phase
Figure 28: Power circuit three-phase
4.2.1 Terminal box
The standard terminal box is IP21 for all models with internal motor protection (T
F
*/P
F
*) and
IP54 for all models with external motor protection (T
W
*), enclosure class according to
IEC 60034-5.
Cable glands have an influence on the protection class of the terminal box. It is strongly
recommended to use appropriate cable glands in order to reach the rated protection class. We
advise installers/service providers to pay attention to this aspect every time they install or
replace a Copeland Scroll compressor and to use cable glands according to EN 50262 or any
other relevant standard of application in their country/region. Examples of correct electrical
installations are shown in
Figures 31 & 32
below.
Figure 29: Correct electrical installation with cable glands for IP21 T-box
S
afet
y
in
struct
ion
s
P
ro
d
u
ct
d
es
cr
ipt
ion
Inst
all
atio
n
E
lec
tr
ica
l
c
o
n
n
ec
tion
S
tar
ting
up
&
o
p
er
atio
n
Ma
int
enan
c
e &
repai
r
Dismant
ling
&
d
ispo
sa
l