UL/cUL approval
Compressor type I (1) Max. fuse (1) I (2) Max. fuse (2)
K5/
HRC form II
K5/
HRC form II
V Hz A A A A
GA 45 230 60 171 200 181,4 200
GA 45 460 60 86,4 100 92,7 100
GA 45 575 60 68,6 80 75 80
I: current in the supply lines at maximum load and nominal voltage
(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 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.
Instruction book
2920 7180 30 169
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