Compressor type
I
tot
(1)
Max
fuse (1)
Q21/Q2
2
SFD 22
+
IEC
60 Hz 380 V
27 A
32 A
14.5 A
SFD 22
+
IEC
50 Hz 400 V
25 A
25 A
12.8 A
SFD 22
+
UL/cUL 60 Hz 200 V
51 A
60 A
21.9 A
SFD 22
+
UL/cUL 60 Hz 230 V
44 A
50 A
19.0 A
SFD 22
+
UL/cUL 60 Hz 460 V
22 A
25 A
9.5 A
SFD 22
+
UL/cUL 60 Hz 575 V
18 A
20 A
7.6 A
I
tot
(1): maximum current in the supply lines at maximum load and nominal voltage for
compressors without integrated dryer.
Max fuse (1): maximum fuse size in case of compressors without integrated dryer.
I
tot
(2): maximum current in the supply lines at maximum load and nominal voltage for
compressors with integrated dryer.
Max fuse (2): maximum fuse size in case of compressors with integrated dryer.
IEC fuses: class gL/gG
UL fuses: class K5; CSA: HRC form II
Possible configurations
There are 3 possible cabling layouts:
• (1): Single supply cables (for DOL variants, only K21 is used)
• (2): Parallel supply cables (for DOL variants, only K21 is used)
• (3) is only valid for Y-D versions
Cable sizing according IEC
The tables below indicate the current carrying capacities of cables for 3 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
(maximum conductor temperature 70 °C).
Instruction book
98
2920 7140 52
Summary of Contents for SF 15+
Page 1: ...INSTRUCTION BOOK OIL FREE SCROLL COMPRESSORS SF 15 SF 17 SF 22 SFD 11 SFD 15 SFD 22 ...
Page 2: ......
Page 16: ...2 2 Flow diagram Flow diagram of SF 15 SF 17 SF 22 Instruction book 14 2920 7140 52 ...
Page 18: ...Flow diagram of SFD 11 SFD 15 SFD 22 Instruction book 16 2920 7140 52 ...
Page 112: ......
Page 113: ......
