Application guidelines
24
FRCC.PC.014.A4.22
Electrical data, connections and wiring
Compressor electrical
specifications
RW: Winding resistance per winding (in CDS302 parameter list)
RLA: Rated load current
MMT: Maximum must trip current
LRA: Locked rotor current
Note that parameter 1-30 in the frequency converter settings reflects the winding resistance per winding. This is not the same value
as measured at the motor terminals.
Compressor
RW
RLA
MMT
LRA
(Ohm)
(A)
(A)
(A)
200 - 240 Volt
VSH088-J
0.0191
61.5
76.9
346
VSH117-J
0.0138
80
100
471
VSH170-J
0.0280
120
150
699
380 - 480 Volt
VSH088-G
0.26
29.9
37.4
159
VSH117-G
0.185
37.7
47.1
225
VSH170-G
0.127
57.3
71.6
346
525 - 600 Volt
VSH088-H
0.518
21
26.3
115
VSH117-H
0.366
30.8
38.5
157
VSH170-H
0.238
44
55.0
246
Because VSH compressors are powered by a fre-
quency converter, the mains frequency, 50 or
60 Hz, is no longer an issue. Only the mains
voltage is to be taken into account. With 3 motor
voltage codes, the most common mains voltages
and frequencies are covered. Never connect the
VSH compressor directly to the mains power
supply.
Supply voltage
Voltage code
Mains voltage range of drive
J
200-240 V / 3 ph / 50 Hz &
200-240 V / 3 ph / 60 Hz (±10%)
G
380-480 V / 3 ph / 50 Hz &
380 - 480 V / 3 ph / 60 Hz (±10%)
H
525-600 V / 3 ph / 50 Hz &
525-600 V / 3 ph / 60 Hz (±10%)
Fuses
Frequency converter
EN50178 compliant fuses
UL Compliant fuses
Bussmann
SIBA
Little fuse
Size
Type
Type RK1
Type J
Type T
Type RK1
Type RK1
Type RK1
200-240 V
CDS-15kW
125 A
gG
KTN-R125
JKS-150
JJN-125
2028220-125
KLN-R125
A2K-125R
CDS-18.5 kW
125 A
gG
KTN-R125
JKS-150
JJN-125
2028220-125
KLN-R125
A2K-125R
CDS-22 kW
160 A
gG
FWX-150
-
-
2028220-150
L25S-150
A25X-150
Locked Rotor Amp value is the higher average
current as measured on mechanically blocked
compressor tested under nominal voltage. As
required by UL regulation, this value is printed
on the nameplate. This current value can not
be achieved in the case of VSH compressors,
because the frequency converter will cut-out the
mains before, according to MMT value.
LRA (Locked Rotor Amp)
Rated Load Amp value is the current value at
maximum load, in the operating envelope, and at
maximum speed.
RLA (Rated Load Amp)
MMT (Maximum Must Trip
current)
The Maximum Must Trip current is defined for
compressors not equipped with their own motor
protection. This MMT value is the maximum
at which the compressor can be operated in
transient conditions and out of the operating
envelope. The tripping current of external
over-current protection must never exceed the
MMT value.
For VSH compressors, according to UL require-
ments, MMT value is 125% of RLA. This value is
printed on the compressor nameplate.
380-480 V
CDS-15 kW
63 A
gG
KTS-R50
JKS-50
JJS-50
5014006-050
KLS-R50
A6K-50R
CDS-18.5 Kw
63 A
gG
KTS-R60
JKS-60
JJS-60
5014006 -063
KLS-R60
A6K-60R
CDS-22 kW
80 A
gG
KTS-R80
JKS-80
JJS-80
2028220-100
KLS-R80
A6K-80R
525-600 V
CDS-15 kW
-
-
KTS-R50
JKS-50
JJS-50
5014006-050
KLS-R50
A6K-50R
CDS-18.5 kW
-
-
KTS-R60
JKS-60
JJS-60
5014006-063
KLS-R60
A6K-60R
CDS-22 kW
-
-
KTS-R80
JKS-80
JJS-80
2028220-100
KLS-R80
A6K-80R