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Instruction book
Compressor type
+
GA 37
+
GA 37
+
GA 37
+
GA 45
+
GA 45
+
GA 45
Table 8: UL/cUL approval
I: current in the supply lines at maximum load and 10% undervoltage.
(1): compressors without integrated dryer
(2): compressors with integrated dryer
Fuse calculations for IEC are done according to 60364-4-43 Low-voltage electrical installations -
Part 4-43: protection against overcurrent. Fuse sizes are calculated in order to protect the cable
against short circuit.
Fuse calculations for cUL and UL: The indicated fuse size is the maximum fuse size in order to
protect the motor against short circuit. For cUL fuse HRC form II, for UL fuse class RK5.
Possible configurations
There are 3 possible cabling layouts:
•
(1): Single supply cables.
•
(2): Parallel supply cables
•
(3) is only valid for Y-D versions
Cable sizing according to IEC
The tables below indicate the current carrying capacities of cables for commonly used installation
methods, calculated according to standard 60364-5-52 - electrical installations of buildings part 5 -
selection and erection equipment and section 52 - current carrying capacities in wiring systems.
The allowed currents are valid for PVC insulated cables with three loaded copper conductors. See
tables for maximum conductor temperature 70 °C and for maximum conductor temperature 90°C.
2920 7196 21
I tot
I (1)
V
Hz
A
230
60
149
460
60
75
575
60
60
230
60
183
460
60
92
575
60
74
Max. fuse (1) Max. fuse (2)
RK5/
I (2)
HRC form II
A
A
160
175
79
90
65
70
194
200
96
110
78
90
RK5/
HRC form II
A
175
90
80
225
110
90
99
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